按时间 按人气 按推荐

  • 当前第 1 页,共 777  个影片
  • 2021-08-24我们为什么会变老?[沉重的呼吸声] 噢 慢点 小喵咪 我跟不上你啦 我现在年纪大了 [沉重的呼吸声] 虽然有时候 我希望 自己能像年轻时一样有活力 但是 岁月不饶人 每个人都会变老 嘿 这是个值得探索的话题 怎么说朋友 你有没有好奇过 为什么人会变老呢 我相信你肯定思考过 所以 今天的视频里 让我们一起探索年龄的奥秘 回答那个我们都关心的问题 为什么我们会变老? 来吧 变老是生命中不可避免的过程 没有人能够违背这种自然规律 我们从呱呱坠地 到青少年 再到成年 然后身体变老 开始有白头发 掉头发 骨质疏松 大脑功能减弱 听力视力衰退 最终走上了人生的终点 但其中最重要的问题是 为什么会这样 为什么我们从一开始就变老 其实 变老是 一系列内外因素引起的 比如 环境压力 像阳光 污染的空气 水 还有我们吃的食物 这些都能造成身体细胞中分子 结构和功能的变化 这些变化引起细胞损伤和修复 导致细胞衰老 加速人体衰老过程 除此之外 还有一种生物因素 可以影响衰老进程 那就是细胞 生命的本源 因为随着我们渐渐老去 细胞的再生过程 也随着时间逐渐变慢 细胞中的DNA 以双螺旋形式储存 形成的结构被称为染色体 每个染色体的末端 有两个保护区 叫做端粒 每一次细胞复制 都会造成端粒的缩短 而当其足够短后 细胞停止复制 然后凋亡 减弱机体自身修复能力 一旦细胞复制能力丧失 机体的免疫系统能力会随着时间迅速减弱 最终丧失 辨别敌我细胞的能力 正因为这样 你的免疫细胞可能会攻击自身 这种现象叫做 自身免疫 除此之外 其他因素也会影响衰老 比如干细胞数量的减少 它能分裂分化成其他细胞 影响组织再生 与器官的正常运行 有许多的科学家 仍然不清楚变老过程 但是希望 随着时间的流逝 和科技的发展 我们会活得更久 永葆青春 休息时间 你知道法国的Jeanne Louise Calment吗? 她一直保持人类历史上着最长寿 世界纪录 是的! 她活了122年164天 在1997年去世 还有来自日本福冈的 Kane Tanaka 是官方认定的 最长寿的人 活了116岁66天 在2019年逝世 提问时间 今天的问题是 Jeanne Calment活了多少岁? 在下方评论区写下你的答案吧 如果还没关注的话 点击喜欢并订阅按钮 加入皮卡布儿童 社区大家庭 就可以获得在视频最后展示的机会! 以下是上期视频的获奖名单 希望你喜欢今天的视频 我就是Binocs博士 下期见! 呃 没关系 嘿 孩子 你喜欢我的视频对吗 离开前 别忘记点击下方订阅按钮和小铃铛 一定不要错过接下来的视频 哈哈哈 下次见
  • 2021-08-24梵高101FreeSchool 101!《基础校园 101》 Hi everyone!大家好! Today we’re going to talk about the nineteenth century Dutch painter Vincent van Gogh.今天来讲讲十九世纪荷兰画家文森特·梵高 He was born March 30th, 1853, in the Netherlands,梵高于1853年3月30日出生于荷兰 the oldest surviving child of his parents.是其父母存活下来的孩子里年龄最大的 Vincent was named for his grandfather文森特取名自他的祖父 and a brother who was stillborn exactly a year before his birth.以及在他出生一年前的同一天死产的哥哥 He would later have two more brothers and three sisters.他下面还有两个弟弟和三个妹妹 His brother Theo,他的弟弟西奥 only four years younger,只比他小四岁 was one of his closest friends throughout his life.曾是他一生中最亲近的朋友之一 Van Gogh was interested in art from his childhood,梵高从小就对艺术感兴趣 and as a young man he became an art dealer.青年时期便成为了艺术品商人 He soon became frustrated and resentful however, and was fired,但不久他变得沮丧愤懑 于是遭到解雇 after which he struggled to find a vocation.此后开始了艰难的求职之旅 He tried being a teacher,他尝试过做教师 worked in a bookshop,在书店里工作 attempted to become a pastor, and spent time as a missionary.他曾想成为牧师 传教布道 以此度余生 In 1880, at the age of 27 ,1880年 在梵高27岁时 Van Gogh attended art school西奥建议他可以尝试学习艺术 after his brother Theo suggested that he try his hand at it.于是梵高去了艺术学院求学 As Van Gogh became serious about his drawing and painting,梵高对于素描和彩画逐渐变得认真起来 he continued to struggle他也一直挣扎于 in relationships with friends, family, and artists he worked with.朋友 家人及合作的艺术家们的关系之中 He fell in love with his widowed cousin and proposed,他爱上了寡妇表亲并向其求婚 but was forcefully rejected.但遭到了强烈的拒绝 He fought with his father.他和父亲也不和 He began working with his second cousin,他开始跟二表哥一起工作 a successful artist,那是一位成功的画家 but they soon had a falling out但不久两人吵了一架 and the cousin stopped replying to Van Gogh’s letters.表哥也不再给梵高回信 It was Theo who lent Vincent the money to buy his first oil paints,最早借钱给文森特买油彩的是西奥 which sparked a new period of productivity.这也使他的创作进入新的阶段 Van Gogh began to produce hundreds of paintings, mostly dark and serious.梵高开始大量创作 其中大部分晦暗严肃 By 1885 he began to attract interest from art dealers,至1885年 其作品开始受到商人关注 but his work was so unlike the bright paintings of other Impressionists但其风格与明朗的印象派画作大相径庭 that it did not sell.因此其作品无人问津 He then moved to Belgium to continue his study of art,之后他去了比利时 enrolling in the Academy of Fine Arts there进入高等艺术学院继续深造 and spending time in museums.并在当地的博物馆度过时光 Due to both his unconventional painting style and his temper,由于作品画风清奇加上他古怪的脾气 Van Gogh fought with the teachers at the Academy梵高曾与学院的导师也起过争执 and soon moved to Paris to stay with Theo.没过多久就搬到巴黎去和西奥生活 He stayed there for less than a year however.然而他在巴黎待了不足一年 As Theo found living with Van Gogh “almost unbearable,”虽然西奥觉得和他一起生活简直无法忍受 but by 1887 Vincent moved out and the brothers were at peace again.但1887年梵高搬走后两人又和好如初 Paris is where Vincent Van Gogh began to add color to his paintings,在巴黎生活时 其画作开始有不同的色彩 experimenting with Japanese-style paintings and pointillism,尝试了日本风格的绘画和点绘 but he did not stay there long.但是他在巴黎没呆太久 In 1888, feeling worn out and sick,1888年 他感到疲惫不堪 he moved to Arles in the south of France.便搬去法国南部的阿尔勒 This is where many of his most famous paintings were made.他的很多名作都诞生于此地 Once in Arles he invited his friend,在阿尔勒时 有一次他邀请一位朋友 French painter Paul Gauguin,法国画家保罗•高更 to stay with him.来与他同住 The two artists worked together for a short time,这两位艺术家合作了短暂的一段时间 but their personalities clashed, causing quarrels.但是由于性格不合 而产生争执 When Gauguin decided to leave,当高更决定离去时 Van Gogh threatened him with a razor,梵高用剃刀威胁了他 which he then used to cut off part of his own ear.这枚剃刀正是他后来用来割耳的 He was diagnosed with mania and delirium,他被症断出有狂躁症与精神错乱 and spent two weeks in the hospital.在医院里待了两星期 Soon afterwards he entered an asylum,不久他便进入了疯人院 where he spent the next year of his life.而在那里度过了一年 Despite his confinement,尽管被禁足于疯人院 he continued to paint, creating some of his greatest works during this time.他仍坚持创作 其部分巨作诞生于该时期 Near the beginning of 1890, Vincent Van Gogh’s painting began to attract more attention.1890年初 文森特·梵高画作开始引起更多关注 His work was praised in a literary magazine其作品受到文学杂志称赞 and he was invited to participate in exhibitions.也有画展邀请他参加 In May of that year he left the asylum,同年5月 他离开了疯人院 moving to the outskirts of Paris to be close to Theo again,移居到巴黎市郊 再次与西奥住得近一点 and he seemed re-energized,他似乎重新恢复了活力 with fresh enthusiasm for his work.充满了新的创作热情 Sadly, it would not last.遗憾的是 好景不长 On July 27, 1890, Van Gogh was shot.1890年7月27日 梵高受到枪杀 Although it is most widely believed that he shot himself in an attempt to commit suicide,虽然普遍认为他是试图自杀而枪击自己 some argue that he was hit accidentally by boys playing with a gun,但也有说他是被玩枪的男孩们偶然间击中 and he did not want them to be punished.而他并不想让他们受罚 This would explain something he said on his deathbed:这就可以解释他在死前说的: “Do not accuse anyone…it is I who wanted to kill myself.”“不要归咎于任何人……我是自杀的” Whether by his own hand or another’s,无论是自杀还是他杀 Vincent Van Gogh died on July 29th, 1890,文森特•梵高于1890年7月29日 at the age of 37.正值他37岁时去世 He left behind more than two thousand completed artworks,他留下了两千多件已完成的画作 including over 800 oil paintings,其中八百余幅为油画作品 most of which were done in the last two years of his life.大部分完成于他人生中的最后两年 His distinctive style makes his work unmistakable,他独特的风格使其作品辨识度极高 and his experimentation with color and line helped push art in new directions,他对色彩线条的试验推动了艺术的新发展 directly influencing the development of Expressionism.直接影响了表现主义画作的发展 He did not live to see it,虽然他生前不太出名 but today Vincent van Gogh is one of the most famous painters in history.但如今 梵高是历史上最有名的画家之一 His paintings that no one wanted to buy are now worth millions of dollars,无人问津之作 现在都价值百万美金 and include some of the most widely recognized paintings in the world.其中有一些成为了世界上最广为人知的画作
  • 2021-08-24我们为什么会哭?无论你尝试在外表表现的有多么坚强 时不时地 每个人都会哭泣 但是你想过为什么哭时会流眼泪吗? 请看本期节目——大问题 哭泣是一种本能 总体来说 流眼泪出于两种原因: 生理反应或情感反应 生理反应导致的哭泣 比如 眼睛进入灰尘时 或者切洋葱时 如果你想知道更多为何这类东西会导致流泪 请参考我们频道的另一集 切洋葱 但今天我们要谈的是情感因素引起的流泪 为什么我们在情绪激动的时候落泪? 要明白这一点 需要知道眼泪是如何作用的: 把流眼泪想象成给眼睛洗个澡 每眨一次眼 少量被称为“泪水”的液体流过眼球表面 让其保持干净 湿润 还有保护作用 每眨一次眼之后 泪水通过位于眼角处的 被称为“泪道”的小管道排出 这就是你常眨眼的原因 每次眨眼 就会有新的泪水流出 反复多次 有时眼泪产生速度超过泪腺排出速度时 这时眼泪从眼眶溢出 就像是水溢出浴缸 这就是我们流泪的原理 人们在情绪激动时会流泪 可以是高兴或难过 你可能会因找到丢失已久的狗狗喜极而泣 或者因为被朋友伤害了感情而难过落泪 好了 这就是我们哭泣的原因 但是为什么强烈情绪让我们哭得难自抑? 专家还未完全搞清原因 不过有几个理论 有人认为哭泣是用来传达有事情不对劲的讯号 也有人认为哭泣或许有助于 释放因压力产生的毒素和有害激素 不管什么理由 有一件事是肯定的: 每个人都会哭泣 现在你知道哭泣背后的秘密啦 可以在评论区问问题喔 记得订阅我们的频道 观看更多视频
  • 2021-08-24免疫系统Our body has a powerful army我们体内有一支强大的军队 that protects it from various types of threats.帮我们抵御种种威胁 These threats can come in the form of mechanical injuries,这些威胁包括机械性损伤 the entry of germs,细菌入侵 or the entry of other foreign particles like dust.或是异物颗粒比如灰尘进入体内 This personal army is called the immune system.这支私人军队叫做免疫系统 《科学ABC》 Every day, we encounter a huge number of bacteria,每天我们都会遇到大量细菌 viruses and other disease-causing organisms.病毒和其他致病的生物 However, we don’t fall ill every other day.但是 我们不会每天都生病 which is due to our immune system-这要归功于我们的免疫系统—— an army of cells that is always roaming our body,一支时刻在我们体内巡逻的细胞军队 ready to ward off any attack.准备抵御任何攻击 The immune system can be broadly divided into two parts免疫系统大致可以分为两部分 innate and adaptive immunity.固有免疫和适应性免疫 Innate immunity or non-specific immunity固有免疫 或称非特异性免疫 is the body’s first natural defense to any intruder.是身体对入侵者的第一道天然防线 This system doesn’t care what it’s killing.这种免疫系统不关心消灭的是什么 Its primary goal is to prevent any intruder from entering the body,它的首要目标是避免任何入侵者进入体内 and if it does enter,一旦侵入体内 then the immune system neutralize this intruder.那么免疫系统就会消灭入侵者 It doesn’t differentiate between one pathogen and another.而且它不会一个一个区分病原体 The first component of this defensive system is your skin.这个防御系统的第一部分就是你的皮肤 Any organism trying to get into the body is stopped by the skin,它会阻止所有试图进入身体的生物 our largest organ, which covers us.是我们最大的器官 覆盖在全身 Secondly, there is the mucous lining of all our organs.其次 我们所有器官内壁都有粘膜 The sticky, viscous fluid traps any pathogens trying to get past it.这些黏稠的黏液会阻止试图通过的病原体 These are the two physical barriers.这是两道物理屏障 However, we also have chemical barriers,然而我们还有化学屏障 such as the lysozyme in the eyes, or the acid in the stomach,比如眼睛里的溶菌酶 还有胃里的胃酸 which kill pathogens trying to gain entry.都会消灭想要入侵的病原体 The genitourinary tract and other places泌尿生殖道和其他地方 have their own normal flora, or microbial community.都有自己的正常菌群 或微生物群落 These compete with pathogens for space and food,它们与病原体争夺空间和食物 and therefore also act as a barrier.所以也起到了屏障的作用 The next line of defense is inflammation,下一道防线是炎症 which is done by mast cells.由肥大细胞引起 These cells are constantly searching for suspicious objects in the body.这些细胞在体内不断地搜寻可疑物 When they find something, they release a signal in the form of histamine molecules.找到后 它们会释放组胺分子作为信号 These alert the body,这会让身体警觉 and blood is rushed to the problem area.血液会迅速聚集到有问题的区域 This causes inflammation and also brings leukocytes, or white blood cells,这会导致炎症 还会带来白血球 或称白细胞 which are soldiers in our body’s cellular army.它们是我们体内细胞军团的士兵 Once they come, all hell breaks loose!一旦到来 顿时乱作一团 Sometimes however, the intruder may not be germ,但是有时入侵者可能不是细菌 but rather a harmless thing like a dust particle.而是像灰尘之类的无害物 The body still causes a full immune reaction to this intruder,人体还是会对它产生完全的免疫反应 which is how allergic reactions occur.这就是产生过敏反应的原因 In the fortress of our body, the leukocytes are VIPs.在我们的身体堡垒中 白血球是VIP They have an all-access pass to the body,它们拥有通往全身的权限 except, of course, to the brain and spinal cord.当然 除了大脑和脊髓 Our leukocytes come in many types.白血球有很多种类 Those that belong to the innate system are the phagocytes.那些属于固有免疫系统的是吞噬细胞 These cells can either patrol your body, like the neutrophils,这些细胞能在体内巡逻 比如中性粒细胞 or they can stay in certain places and wait for their cue.也能待在特定的位置等待指示 Neutrophils are the most abundant cells.中性粒细胞是体内数量最多的吞噬细胞 They patrol the body and can therefore get to a breach site very quickly.它们在体内巡逻 以便尽快到达伤口 These cellular soldiers kill the infectious cell and then die,这些细胞士兵杀死感染细胞后死亡 which leads to pus formation.这导致了脓液的形成 There are also the big bad wolves, or the macrophages.还有一些狠角色 叫做巨噬细胞 These cells are like hungry, ravenous monsters这些细胞就如饥饿贪婪的怪物一般 who simply engulf unwanted pathogens.简单粗暴地吞下有害病原体 Instead of roaming freely in our blood,它们会在特定区域聚集 they are collected in certain places.而不会在血液中自由巡逻 These cells can consume about 100 pathogens before they die,这些细胞在死前可以消灭大约100个病原体 but they can also detect our own cells that have gone rogue,但它们也可以识别病变的细胞 such as cancer cells, and kill them too.例如癌细胞 并消灭它们 Beyond that, we also have the Natural Killer Cells.此外 我们还有自然杀伤细胞(NKC) These cells can efficiently detect when our own cells have gone rogue,这些细胞可以高效地识别病变的 or are infected with, say, a virus.或被感染的细胞 比如被病毒感染 NKCs detect a protein produced by normal cells,NKC会识别正常细胞合成的一种蛋白质 called the Major Histocompatibility Complex or MHC.叫做主要组织相容性复合体或MHC Basically, whenever a cell isn’t normal,一般来说 细胞一旦发生异常 it stops producing this protein.就会停止合成这种蛋白质 The NKCs move around constantly,NKC会不断地移动 checking our cells for this type of deficiency,来检查细胞是否有这种蛋白质缺失 and when they find an abnormal cell,在找到异常细胞后 they simply bind to it and release chemicals that will destroy it.就会与之结合 并释放化学物质将其破坏 The last cells of our innate immune system are the dendritic cells.固有免疫中最后一类细胞是树突状细胞 These are found in places that come in contact with the outside environment,它们分布于与外界环境相连通的地方 such as the nose, lungs, etc.比如鼻子 肺等 They are the link between our innate and adaptive immune systems.它们是固有免疫与适应性免疫系统之间的纽带 They eat a pathogen,它们吞噬病原体 and then carry information about it to our adaptive immune system cells.然后给适应性免疫系统的细胞带去相关的信息 This information is produced and shared in the form of antigens.这个信息以抗原的形式产生并共享 Antigens are the traces that pathogens leave around.抗原是病原体留下的痕迹 They are molecules found on the surface on pathogens它们是位于病原体表面的分子 that can be detected by our adaptive immune system for recognition.可以被适应性免疫系统发现以识别 The dendritic cells pass on this information to our T cells.树突状细胞会把这些信息传递给T细胞 However, macrophages can also perform this function.然而 巨噬细胞也能起到这个作用 Now, there is also the adaptive or acquired immune system.此外 我们还有适应性 或称获得性免疫系统 This system is more efficient,这个系统更加高效 as it can differentiate between different types of pathogens.因为它可以分辨不同类型的病原体 It has 2 main components – T lymphocytes and B lymphocytes.它主要有两部分 T淋巴细胞与B淋巴细胞 T-cells come into play when an infection has already occurred,T细胞在感染发生后才会介入 thus bringing about the cell-mediated immune response.从而引起细胞免疫应答 B-cells join the fight when the pathogens have entered,B细胞会在病原体进入人体 but haven’t yet caused any disease.但还未引起疾病时介入 This is called the humoral immune response.这被称为体液免疫应答 Some T-cells take signals from the dendritic cells or macrophages,有些T细胞会接收树突状细胞或巨噬细胞的信号 and are thus called helper T-cells.所以也被称为辅助T细胞 They perform two key tasks:它有两个关键任务: forming effector T-cells, which are basically cells that cycle through the body形成效应T细胞 在体内循环 and call in the cavalry, namely other white blood cells.并且呼叫“骑兵” 即其他白细胞 Helper T-cells also form memory T-cells,辅助T细胞还会形成记忆T细胞 which keep a record of this antigen for future reference.它们会记录下这个病原体供下次参考 Sometimes, some cells of our body know that they have lost the battle.有时 身体的某些细胞知道自己打了败仗 They have become heavily infected with pathogens,它们被病原体严重感染了 so there is no hope for them.所以已经没救了 At this point, the immune system brings out the cytotoxic t cells.此时 免疫系统会叫来细胞毒性T细胞 These cells rush over and perform a mercy killing for the infected and dying cell.跑去给濒死的感染细胞安乐死 Furthermore, we have the B-cells.此外 我们还有B细胞 They produce chemicals called antibodies,它们会产生名为抗体的化学物质 which fit on the antigens of pathogens,抗体与病原体的抗原相结合 much like how a lock and key fit together.就像锁和钥匙组合在一起 These antibodies crowd around a pathogen and act like tags,这些抗体会在病原体上聚集 并作为标签 They signal the macrophages to come and kill the marked pathogen.指示巨噬细胞来杀死被标记的病原体 B-cells also produce memory B-cells when they encounter an antigen.B细胞遇到抗原时也会产生记忆B细胞 The B- and T- memory cells jointly maintain a record of all encountered infections,记忆B T细胞对所有遭遇过的感染都有记忆功能 and thus strengthen and solidify the body’s immune response to these infections in the future.从而加强并稳固将来对于这些感染的免疫应答 Our innate response is quicker, though non-specific.固有免疫应答不具有特异性 但它非常迅速 It gets into action within hours and is pretty strong.几小时内就能起作用 效果也很好 However, when things get out of hand,然而 当情况失控时 the innate system calls for help from the acquired immune system.固有免疫系统会向获得性免疫系统寻求帮助 This system can take days to mount a response,这个系统要花几天才能做出应答 but the next time we encounter that pathogen,但是下次遇到这个病原体 it won’t make us get sick.我们就不会生病了 In short, every day that we spend being healthy总之 我们能健康地度过每一天 is all thanks to our immune system.都要归功于免疫系统 So, it definitely deserves our respect.所以它绝对值得我们尊重
  • 2021-08-24升级你的单车的窍门# If you’ve got nothing to do ##如果你感到无所事事# # Well I’ve got a couple of tricks for you ##那我有一些小技巧要教给你# # So take a look at these vids ##来看一看这些视频# # Cause it’s Life Hacks for Kids ##因为这是《给孩子们的生活窍门》# Hi I’m Jordyn,你好 我是Jordyn and today’s episode is Better Bike Hacks.今天这一集要讲的是 《改装单车的窍门》 If biking is to your liking,如果骑车是你的爱好 but your wheels just don’t give you the feels,但是你的车并没有让你感到满意 then these hacks we have here那我们今天的小窍门 will help you get into gear.将会帮助你找到状态 First up,首先是 my Super Straw Spokes.我的 “超级吸管辐条” For these you’ll need colorful straws,为此你需要一些彩色的吸管 scissors,剪刀 and a bike.还有一辆自行车 Cut up the long side of your straw.沿着吸管的一边把它剪开 [happy music][欢快的音乐] Now slip the straw onto the spoke.现在把吸管装到辐条上 Keep going!继续! [happy music][欢快的音乐] [magic wand sound][魔棒挥舞声] It looks so cool when you ride!你骑的时候看起来好酷 [happy music][欢快的音乐] [crashing sound][撞击声] Whoa,哇 that crash,那个事故 I mean- trick,我的意思是那个技巧 made me thirsty.让我有点渴 I could use a nice refreshing drink of water.我想喝口水放松一下 If only I had a water bottle holder.如果我有一个水杯架就好了 Whelp, now I can with my Hang on Holder.这样 有了“支撑杯架”我就能做到了 For this you’ll need,首先你需要 a water bottle,一个水杯 a chip can,一个薯片罐 zip ties,束带 scissors,剪刀 and a bike.还有一辆自行车 Punch four holes in the middle of the can.在薯片罐中间打四个洞 [happy music][欢快的音乐] Now run a zip tie through two of the holes.现在把束带穿过上面的两个洞 [happy music][欢快的音乐] Repeat with the other zip tie.另一个束带也一样 Now zip tie it to the handle bar.现在把束带绑在车把上 [happy music][欢快的音乐] Now snip off the ends.现在剪掉尾端 [happy music][欢快的音乐] [crashing sound][撞击声] Okay,好了 I did not mean to do that.我不是故意这样做的 Good thing I had my helmet on.幸运的是我带了头盔 It’s a really boring one.这头盔很无趣 But it doesn’t have to be, with my Mohawk Helmet.但有了我的“马希坎式头盔” 就不一样了 For this you’ll need,做这个你需要 a hot glue gun,一个热喷胶枪 a helmet,一个头盔 and a feather duster.和一个羽毛掸子 Screw off the handle of your feather duster.拧下你羽毛掸子的手把 Now bend it to the shape of your helmet.现在把它弯成你头盔的形状 [fun music][开心的音乐] Now, hot glue it in place.现在呢 把热胶涂在上面 [fun music][开心的音乐] Hope you enjoyed these awesome bike hacks!希望你享受这些棒棒的自行车小技巧 I’m out of here.我要走啦 [crashing sound][cat meow][撞击声] [猫的惨叫] Oh come on!哦!怎么又这样! What kind of bike did you have?你的自行车什么样呢? Let me know when it comes below写在下方告诉我吧 Remember to subscribe to DreamWorks tv,记得订阅《梦工厂TV》 and to click here,点击这里 for more Life Hacks For Kids,收看更多的《给孩子们的生活窍门》 with me Jordyn.和我一起 DreamWorks tv 梦工厂tv
  • 2021-08-24自然灾害安全歌碰碰狐 嗨 我是鲨鱼宝宝Brooklyn 订阅 打开通知 点赞 鲨鱼宝宝Brooklyn 自然灾害安全歌 摇啊摇 摇啊摇 身子跟着摇 摇啊摇 摇啊摇 地也跟着摇 身体摇啊摇 房子摇啊摇 噢 天呐 地震啦 在原地待好 双手抱头 护好脖子 然后爬到桌子下 趴在地上 然后双手护头 躲到坚固的桌子下 哗啦哗啦 下大雨啦 噼里啪啦 呼啦呼啦 刮大风啦 轰隆轰隆 哗啦哗啦 下大雨啦 呼啦呼啦 刮大风啦 噢 天哪 暴风雨来啦 找个室内避难所 远离窗户 而且不要使用座机 千万注意 飞行物体 千万不要触碰被击落的灯 或者电线 “唷 我们都安全了”
  • 2021-08-24在深蓝色的大海里(xylophone dinging)[木琴叮叮] (upbeat music)[欢快的音乐] ♪ Down in the deep blue sea ♪#在深蓝色的大海中# ♪ Down in the deep blue sea ♪#在深蓝色的大海中# ♪ Down in the deep blue sea ♪#在深蓝色的大海中# ♪ Come and take a dive with me ♪#来和我一起潜水# ♪ We’ll see a swimming fish ♪#我们会看到一条游泳的鱼# ♪ We’ll see a swimming fish ♪#我们会看到一条游泳的鱼# ♪ We’ll see a swimming fish ♪#我们会看到一条游泳的鱼# ♪ Come and take a dive with me ♪#来和我一起潜水# ♪ We’ll see a octopus ♪#我们会看到一个章鱼# ♪ We’ll see a octopus ♪#我们会看到一个章鱼# ♪ We’ll see a octopus ♪#我们会看到一个章鱼# ♪ Come and take a dive with me ♪#来和我一起潜水# ♪ We’ll see a great big whale ♪#我们会看到一条大鲸鱼# ♪ We’ll see a great big whale ♪#我们会看到一条大鲸鱼# ♪ We’ll see a great big whale ♪#我们会看到一条大鲸鱼# ♪ Come and take a dive with me ♪#来和我一起潜水# ♪ We’ll see a baby shark ♪#我们会看到一条小鲨鱼# ♪ We’ll see a baby shark ♪#我们会看到一条小鲨鱼# ♪ We’ll see a baby shark ♪#我们会看到一条小鲨鱼# ♪ Come and take a dive with me ♪#来和我一起潜水# ♪ We’ll see a jellyfish ♪#我们会看到一只水母# ♪ We’ll see a jellyfish ♪#我们会看到一只水母# ♪ We’ll see a jellyfish ♪#我们会看到一只水母# ♪ Come and take a dive with me ♪#来和我一起潜水# ♪ We’ll see a starfish ♪#我们会看到一个海星# ♪ We’ll see a starfish ♪#我们会看到一个海星# ♪ We’ll see a starfish ♪#我们会看到一个海星# ♪ Come and take a dive with me ♪#来和我一起潜水# ♪ Down in the deep blue sea ♪#在深蓝色的大海中# ♪ Down in the deep blue sea ♪#在深蓝色的大海中# ♪ Down in the deep blue sea ♪#在深蓝色的大海中# ♪ Come and take a dive with me ♪#来和我一起潜水#
  • 2021-08-24什么是塑料污染?什么造成了塑料污染?望远镜博士秀 朋友们大家好 在开始今天这集之前 我要和大家分享一条重要信息 你们一定知道 由于新政策的限制 你们无法在视频中留下评论 但是 不用担心我的朋友们 你还是可以分享你宝贵的反馈意见 评论 看法以及喜爱 通过以下邮箱 peekabookidzfeedback@gmail.com 同样的 你也可以浏览我们的INS和脸书网页 继续和我们保持联系 我们期待着你们的消息 [哼歌] 快看啊 小猫 是塑料 噢不 没错 小猫 很不幸 这已经变成很常见的景象 世界已经逐渐被塑料废物吞没 我的朋友们 我相信你们一定想知道 这有什么大不了的 你也许不相信 但是塑料污染已经成为 我们现在面临最严峻的环境问题之一 所以 在今天这集中 让我们来解决这个重要问题 并学习什么是塑料污染 它的原因 造成的影响 对人类的影响 以及 我们要如何应对 一起来看看吧 那么什么是塑料污染呢 塑料污染是塑料物品及颗粒的累积 例如塑料瓶 塑料袋和塑料微粒 在地球的环境中 对野生动物及人类造成不利影响 我知道你们在想什么 塑料污染是如何影响 人类和动物的生命呢 想象一只海龟 在水中游着寻找食物 突然发现一团白色物体 在海面附近漂浮 “一只美味的水母!” 海龟想 并把白色物体吃掉了 但无辜的海龟不知道 这个漂浮的白色团状物不是水母 而是一个塑料袋 这会使海龟以及很多其他水里的动物 患上重病 是的 我的朋友们 就像那样 每年都有上百万的动物 因为塑料而死去 从鸟类到鱼类 到其他水生生物 不仅如此 在许多陆地动物的肚子里 也发现了塑料 包括大象 斑马 老虎 骆驼 牛 以及其他大型哺乳动物 在某些情况下甚至造成它们死亡 而所有这些因素也在以某种方式影响人类 没错 科学家发现 114种水生物体内 都存在塑料微粒 而这些水生物中的约三分之一 会上我们的餐桌 同时 世界上大部分自来水中 也都发现了塑料微粒 然而关键的问题是 谁应该为这塑料的糟糕情况负责呢 不幸的是 没有别人 正是人类自己 但在匆匆做出结论之前 我们必须明白不是所有塑料都是可怕的 因为他们用处很大 是的 塑料制造的救生设备彻底改变了医学 塑料让太空旅行成为可能 塑料让车和飞机变得更轻 减少了燃料用量和污染 塑料制造的安全帽 汽车安全气囊 清洁饮用水的设备 拯救了人们的生命 对我们大多数人来说 塑料是我们日常生活中不可或缺的一部分 但问题是 大部分人使用并丢掉的塑料超过了自身需求 例如食品杂货袋 饮料瓶 吸管 食品包装纸 和玩具的塑料包装 这一类的塑料在丢弃之前 只使用一次 被称为一次性塑料制品 在塑料垃圾总量中占比超过40% 而这数百万吨一次性塑料的使用 对我们地球来说 总体是不可持续和危险的 现在到了最关键的问题 我们能做什么来帮助地球 以及无辜的动物呢? 不管相不相信我 解决这个问题得从你开始 并且只能是你 首先 尽自己所能循环使用塑料制品 而且不要随地丢弃在海滩和公园之类的地方 留在地上的塑料垃圾常常被风吹进小溪和河流里 最终流进大海 另外 不要用塑料玩具填满你的生日礼品袋 你可以送给朋友自制的美食 和当地烘焙店的优惠券 第三 用可循环使用的容器和布袋 来装零食 而不是使用塑料袋 你跨出的这小小一步 将对帮助清洁我们的地球有重大意义 小知识时间 你知道吗 从二十世纪五十年代起 有大约83亿吨的塑料 在全球范围内被生产出来 而每分钟 全世界要使用大约两百万个的塑料袋 希望你喜欢今天这一集 下期见 我是望远镜博士 结束 [震惊] 算了 嘿孩子们 你们喜欢我的视频对吗 离开之前 别忘了点击关注 这样你不会错过我的最新视频 哈哈 下次见
  • 2021-08-24如果不洗澡你会怎么样?Have you ever been in a scalding hot shower你在洗热水澡的时候经历过 with a bar of soap slipping through your fingers滑溜溜的肥皂怎么也抓不到 and shampoo stinging your eyes或者洗发水进到眼睛里面 and wondered what would happen if I never took another shower?然后想到 要是再也不洗澡会怎么样? Let’s find out on today’s episode of Colossal Questions.让我们在今天的《重大问题》中找到答案 Here’s what would happen if you decided today下面我们就来讲讲如果你今天决定 that you were never going to shower again.今后再也不洗澡后会发生什么事情 Well, for starters you’d stink.那么首先 很显然 This one is pretty obvious, right?你会变臭 没错吧? Dead skin, dirt, and all kinds of bacteria死皮 污垢 各种细菌 would slowly build up all over your body causing an obnoxious odor.会在你的全身上下慢慢聚积 引发恶臭 Is that not gross enough to get you in the shower?这还没恶心到让你洗个澡吗? Well, how about brown clumps that would start growing on your skin?那要是皮肤上开始出现褐色团块呢? That’s right,没错 dirt, dust or other disgusting microbes污垢 灰尘或者恶心的微生物 would slowly start to collect on your skin, causing brown growths.会在皮肤上慢慢聚集成褐色团块 It’s most likely to happen on parts of the body that produce the most natural oils.这最可能发生在油脂分泌旺盛的部位 Your armpits, neck, head, and behind the ears.比如腋窝 颈部 头部和耳后 Dead skin wouldn’t just build up on your body,不仅你的身上会出现死皮 your scalp would have all sorts of problems too.头皮上也会这样 We call dead skin that collects on the scalp dandruff.这种头皮上的死皮就叫头皮屑 It’s a pretty common problem即便是在经常洗澡的人身上 even for people who shower regularly.这个问题也很常见 And it causes your head to itch.头皮屑会造成你的头皮瘙痒 But if you stopped showering altogether,如果你再也不洗澡 well, your dandruff would go into overdrive.那么你的头皮上会布满头皮屑 Your hair would get oily and dirty你的头发会又油又脏 and would start to look matted and full of knots看上去乱糟糟的 到处打结 like unintentional dreadlocks就好像无意中留了拉斯特法里派的骇人发型 As if that wasn’t bad enough,好像这些还不够糟糕似的 the skin on your face would have the worst acne attack of all time,你的脸会得有史以来最严重的痤疮 giving you terrible pimples and pus bumps from all the oil buildup.油脂堆积会导致可怕的丘疹和脓包 But if just being really, really gross isn’t enough to keep you showering,如果就算变得非常恶心 你也不想定期洗澡 what about the effect it has on your health?那要是影响到你的健康呢? That’s right, showers don’t just keep you looking and smelling nice,没错 洗澡不仅能让你精神抖擞 芳香四溢 they also keep you healthy.也能让你保持健康 We’re all taught that if you get a little scrape or cut it’s best to wash it off,我们都被教过 如果有小的擦伤或割伤 最好在水下冲洗 that’s because dirt and bacteria can cause an infection.因为灰尘和细菌会引起感染 But if you never showered then a small cut is way more likely to get infected但如果你从不洗澡 小伤口更可能受感染而变严重 because of all the extra bacteria crawling around on your skin.因为你皮肤上布满了更多细菌 So while it might be annoying to have a bath or shower regularly,所以 尽管定期沐浴很麻烦 it’s way less annoying than losing a limb to infection.但也好过因感染而失去一条胳膊 And now you know what would happen if you never shower again?这下你明白不洗澡会怎么样了吧? Comment below if you have a question you’d like to know the answer too如果你有问题 请在下方留言 and don’t forget to subscribe for more episodes of也不要忘了订阅后续的 Colossal Questions.《重大问题》 Only on Dream Works TV梦工厂TV独家冠名
  • 2021-08-24什么是病毒?Hey friends, I’m not feeling too well today.嘿 朋友们 我今天感觉不太舒服 I think I have a cold…我想我感冒了 Well, I guess it is a good time to tell you about what causes cold我觉得这是个好机会来告诉你们感冒 and many other such diseases.和其它类似的疾病是由什么引起的 Sorry.对不起 And that’s why,…这就是为什么 We’ll talk about Virus!我们来谈谈 病毒! ZooZoooo..ZOOOOOMINNNNN!放 放 放大 You know that a bacterium is a very tiny organism, right?你知道细菌是一种非常小的生物 对吧? Well, a virus is so small,不过 病毒更小 that its invisible to even a bacterium.甚至细菌都看不见它 This is how it is able to infect the tiny bacterium这就是为什么它能够感染微小的细菌 and the cells in our bodies.和我们体内的细胞 Unlike the bacterium, the virus has no cytoplasm.与细菌不同 病毒没有细胞质 Or a nucleus或细胞核 or anything resembling a cell.或者任何类似细胞的东西 It has a very basic structure of the DNA它有一个非常基本的DNA结构 covered by an outer protein shell and some fats.被一层蛋白质外壳和一些脂肪所覆盖 That’s why viruses can’t even be considered organisms at all.这就是为什么病毒甚至不能被称作是生物体 They are not actually living.它们并不是生命体 They float around like debris in space它们像太空中的碎片一样四处飘浮 waiting to contact a host.等待着与宿主接触 And only once they enter a host,只有进入宿主体内 can they reproduce!它们才能复制! This is where the true terror of Viruses is seen!这就是病毒的真正可怕之处! once inside,一旦进入宿主体内 these little fellas hijack the cells of the organism这些小家伙就会通过从细胞膜进入 by entering through the cell membrane.来劫持宿主细胞 Once they do,一旦它们这样做了 the virus takes over the protein building structures of the host cell.病毒就接管了组成宿主细胞结构的蛋白质 and forces them to replicate the virus instead.迫使宿主细胞转而复制病毒 The poor cell unknowingly可怜的细胞不知不觉地 begins manufacturing an army of the virus till the entire is infected!开始制造大量的病毒 直到整个细胞被感染! This poor mindless slave cell does this till it explodes.这个可怜的没有头脑的奴隶细胞一直这样做 直到它破裂 Releasing all the virus to infect the nearby cells.释放所有病毒感染周围的细胞 And that’s how an infection spreads.这就是感染传播的方式 That’s why I got sick.这就是为什么我会生病 But don’t worry,但是别担心 your bodies are super smart说到拯救你自己 when it comes to saving you.你的身体可是超级聪明的 Every time we fall ill with a virus,..每次我们感染病毒生病的时候 ..the body makes a special cell身体会产生一种特殊的细胞 called a Memory Cell.称为记忆细胞 This cell stores all the information about the virus这种细胞储存关于病毒的所有信息 and how it was defeated…以及它是如何被击败的 ..so that the next time the virus attacks,所以下次病毒攻击时 your body’s defense is ready to destroy it!你身体的防御系统就会准备好摧毁它! TRIVIA TIME!小知识时间! Did you know that even antibiotics你知道即使抗生素 don’t work on viruses?对病毒也不起作用吗? Because antibiotics are designed to fight bacteria!因为抗生素是用来对抗细菌的! In our body, the most common viruses在我们的身体中 最常见的病毒 are actually bacteriophages…事实上是噬菌体 ..that infect and destroy bacteria!它能感染和破坏细菌! I think I have a cold again.我想我又感冒了 Well kids, before I go,..好吧 孩子们 在我走之前 ..what’s the common virus in our body that destroys bacteria?我们体内常见的杀死细菌的病毒是什么? And here’s hoping i feel better soon.希望我能快点好起来 So that I can keep bringing you such fun这样我才能一直给你们带来那么多的乐趣 and interesting…和有趣的 ..facts.事实 Until next time, this is me zoooming out!下次见 这就是本期的内容 Oh no!哦 不 Hey kids, you liked my videos didn’t you?嗨 小伙伴 你们喜欢我的视频 对吧 Before you go,在你走之前 don’t forget to click on the subscribe button and the bell.别忘了点击订阅按钮和通知 So you won’t miss out on my latest videos.这样你就不会错过我最新的视频 See you.再见
  • 2021-08-24给孩子们讲讲龟《基础校园》 Are you ready to learn about turtles?你准备好去了解龟类了吗? There are many different kinds of turtles!龟有很多种类 Some are big, and some are small.一些个头大 还有一些个头小 Some live in the ocean, and some live on land!一些生活在海洋里 一些生活在陆地 No matter where they are or what they look like无论它们生活在哪里 长什么样 all turtles are reptles所有的龟都是爬行动物 like snakes, alligators, and lizards.爬行动物还包括蛇 鳄鱼 蜥蜴等 Like other reptiles, turtles have scaly skin像其他爬行动物一样 它们有鳞状皮肤 but turtles are special because they have但是龟很特别 因为它们的背部 a strong, hard shell covering their back.覆盖有一个大而坚硬的壳 Many kinds of turtles can hide their head and their legs许多种龟可以将它们的头和足隐藏在壳里 inside their shell to protect themselves.来保护它们自己 Come on, turtle!加油吧 小龟 It’s okay!没关系 You can come out now!你现在可以出来了 Some turtles, like sea turtles一些龟 比如海龟 cannot go into their shell它们不能进入自己的壳里 All turtles lay eggs.所有龟都产卵 Even turtles that live in the water即使是生活在水里的龟 come to shore to lay their eggs on land也会上岸在陆地上产卵 If you want to see a turtle如果你想要看到龟 look around carefully when you go outside当你出去的时候仔细在四周看看 Turtles live in many places and龟类生活在很多地方 there are probably turtles that live near you很可能有些龟就生活在你的附近 Goodbye, turtles!再见啦 小龟
  • 2021-08-24给孩子们讲讲老虎《基础校园》 早起的鸟儿 Are you ready to learn about tigers?准备好了解老虎了吗? The tiger a member of the cat family.老虎是属于猫科的 They are big cats.它们是体型大的猫 Tigers are the biggest cats in the whole world!老虎是世界上最大的猫科动物 Most tigers have orange fur with black stripes,大多数老虎是橘色皮毛带黑色条纹的 but sometimes tigers are white instead.但有些却是白色皮毛的 Tigers are hunters, and they eat meat.老虎是猎者 它们食肉 They have big, sharp teeth, and big, sharp claws!它们有巨大锋利的爪牙 Most cats do not like to swim in the water, but tigers do!大多数猫不喜欢水中游泳 老虎却不同 What are you doing, tiger?老虎 你在做什么呢? On a hot day, tigers love to go swimming.天气炎热时 老虎喜欢玩水 Tigers are curious animals, and like to play.它们是有好奇心又爱玩的动物 They like to climb and explore.它们喜欢爬行与探索 Tigers live in Asia, mostly in forests.老虎生活于亚洲 多数是在森林 They live where they can find places to hide, water to drink, and enough animals to eat.它们住在可以藏身 并且水源 食物充足的地方 You may be able to see a tiger close up如果你参观附近的动物园 if you visit a zoo near you!你或许能近距离观察老虎 Goodbye, tigers!老虎 再见
  • 2021-08-24给孩子们讲讲大象《基础校园》 早起的鸟儿 Are you ready to learn about elephants?准备好了解大象了吗? Elephants are very big animals.大象的体型很大 They are the heaviest animals in the world that live on land.它们是世界上最重的陆栖动物 They are big, and gray它们体型巨大 有着灰色的皮肤 with big flappy ears and a long, long trunk.一双扇动着的大耳朵和长长的鼻子 Elephants can use their trunks to pick things up.大象可以用鼻子捡东西 They can use trunks to throw dirt and water on themselves to help cool down.它们可以用鼻子把泥和水洒在身上来降温 They can use them to pick up water to drink.它们可以用鼻子取水喝 They can even use them to pick up food to eat.它们还能用鼻子捡食物吃 Elephants eat plants – a lot of plants.大象吃植物 要吃很多植物 Elephants eat so much that they spend almost all day eating!它们胃口很大 几乎一整天都在吃 Elephants live in families, called herds.大象是群居动物 生活在象群中 All the members of the herd work together to take care of the elephant babies.象群中的所有成员会一起照顾象宝宝们 Come on, little one!快跟上 小不点 Some elephants live in Africa, and some elephants live in Asia.有些大象生活在非洲 有些生活在亚洲 African elephants and Asian elephants look a little different.非洲大象和亚洲大象看起来有些不一样 If you want to see some elephants, try visiting a zoo near you!如果你想看大象 那就去附近的动物园吧 Goodbye, elephants!再见啦 大象
  • 2021-08-24你会说“肚子”吗?肚子 肚子 你说肚子 肚子 肚子 肚子 你说肚子 我会帮你的 来吧 肚子 我的肚子 你的肚子 肚子 肚子 肚子 毛茸茸的肚子 尖叫的肚子 一个宝宝在他妈妈的肚子里 肚子 突起你的肚子 饥饿的肚子 吃饱的肚子 肚子 愚蠢的肚子 怕痒的肚子 多刺的肚子 肚子 肚子 肚子 你说肚子 让我们学习吧
  • 2021-08-24给孩子们讲讲野牛You’re watching FreeSchool!你正在观看《基础校园》 The American bison, commonly called the buffalo, 北美野牛通称野牛 is the largest mammal in North America.是北美最大的哺乳动物 You can tell they are mammals 你可以看出它们是哺乳动物 because they are covered in fur, breathe air, 因为它们身上覆盖着皮毛 呼吸着空气 and they feed their babies milk.还用母乳喂食幼崽 Although not as tall as moose, 虽然没有驼鹿那么高 bison are both longer and heavier, 但野牛既长又重 with males reaching lengths up to eleven and a half feet公牛身长可达11.5英尺 or 3.5 meters 合3.5米 and weights of up to 1600 pounds重量可达1600磅 or 730 kilograms. 合730公斤 Bison are herbivores, 野牛是食草动物 which means they eat plants.也就是说它们以植物为食 They live on plains and prairies它们生活在平原草甸 because they mostly graze on grasses, 主要吃上面的牧草 but they will also eat weeds and leafy plants,但也吃杂草和多叶植物 and browse on shrubs and twigs.还吃些灌木和小树枝 To fuel their huge bodies,为了给庞大的身躯提供燃料 bison need to forage for food for 9 to 11 hours every day.野牛每天有9到11个小时在觅食 Just like cows, bison are ruminants,和奶牛一样 野牛也是反刍动物 which means their stomachs have four compartments.这意味着它们的胃有四个隔间 These special stomachs help them 这些特殊的胃帮它们 to break down the grass and plants they eat.分解所吃的草和植物 They may look like cows grazing in a field,它们可能看起来像在草地上吃草的奶牛 but don’t let them fool you –但别被骗了—— bison are wild animals,野牛是野生动物 powerful and dangerous. 既强壮又危险 Both male and female bison have short, curved horns,公野牛和母野牛都有短而弯曲的角 large heads, and heavy shoulders.大脑袋以及强有力的肩膀 They can swim rivers more than half a mile 它们可以游过半英里 or 1 kilometer wide, 合一公里宽的河 run at speeds of up to 40 miles时速能达到40英里 or 64 kilometers per hour, 合64公里 and jump 6 feet 能跳6英尺 or 1.8 meters up in the air.合1.8米高 In the spring and summer,在春夏两季 the bison come together and form large herds野牛们会聚集在一起 with hundreds or even thousands of members.形成数百甚至数千只的大群 It is in these herds that the baby bison,就在这些牛群中 known as calves, are born. 被称为牛犊的小野牛出生了 This little calf has just been born 这只小牛犊刚出生 and is wobbly on its legs, 走路摇摇晃晃的 but before long但过不了多久 it will be running along with the rest of the herd. 它就能和其他野牛一起奔跑了 Newborn calves are a light reddish-tan color.新生的小牛呈浅红褐色 They will not turn the darker brown of their parents 它们要变成父母那样的深棕色 for more than two months.还需要两个多月 In the winter在冬天 bison break up into small groups of about 20 animals野牛群会分成20只左右的小群 because it is more difficult to find food in the snow.因为在雪地觅食更加困难 Bison use their big heads and strong shoulders野牛们会用大脑袋和强壮的肩膀 to push snow out of the way把雪推开 like a shovel to reach the grass below.就像用铲子铲下面的草一样 Their thick winter coats help them to survive freezing temperatures它们厚厚的冬衣能帮它们 that other animals cannot stand.在其他动物无法忍受的严寒中生存下来 Bison once roamed North America in herds北美野牛曾成群在北美游荡 numbering in the millions. 多达数百万 It’s estimated that there were about 60 million bison before the year 1800.据估计 在1800年之前约有6千万头 Just 100 years later, in the year 1900,但就在100年前 1900年 there were only 300 bison left.这里仅剩300只野牛了 What happened?发生了什么? As settlers moved west,随着移民西迁 they hunted and killed millions of bison, 他们猎杀了数百万头野牛 as many as they could shoot.到他们能射杀的极限 The settlers wanted to clear the huge herds off the plains移民们想把大群的牛群赶出平原 so that they would have room for farms and cattle.这样他们就有地方种田放牧了 Bison fur and leather could be sold for a lot of money,野牛皮和皮革可以卖很多钱 and even their bones could be sold as fertilizer.甚至它们的骨头都可以作为肥料出售 There was another reason to kill the bison, too:还有另一个猎杀野牛的原因: the United States government wanted 美国政府希望 Plains Indians living on the Great Plains to move to reservations 生活在大平原的大平原印第安人搬到居留地去 so there would be more room for the settlers.从而给移民更多空间 The tribes that depended on bison to survive如果牛群都消失了 would not be able to stay if the herds were gone.那些依靠野牛生存的部落将无法继续生存 Sadly, this plan worked.不幸的是 这个计划起效了 By the year 1905, 到了1905年 worried that bison would go completely extinct,人们担心野牛彻底灭绝 conservationists including Theodore Roosevelt包括西奥多·罗斯福在内的环保主义者 founded the American Bison Society to protect创立了美国野牛协会来保护 and preserve these huge animals.这些巨大的动物 Today, thanks to more than 100 years of conservation efforts,今天 由于100多年的保护努力 American bison populations have increased美洲野牛的数量 from 300 to more than 500,000 animals,从300到现在超过500000只 and it has been named the national mammal of the United States.它被命名为美国的国家哺乳动物 I hope you enjoyed learning about the American bison today.希望你今天学到了北美野牛的知识 Goodbye till next time!下次再见!
  • 2021-08-24美女与野兽 Beauty and the BeastOnce upon a time很久以前 there lived a very rich man有一个非常富有的男人 he had three daughters他有三个女儿 two of them were really greedy and self-centered girls其中两个是贪得无厌且自私的女孩 but the third one had a heart full of love and kindness不过第三个女儿的心中充满爱和善意 One day, their dad received the news一天 她们的父亲得到消息 that his ship has sunk due to the storm她们的父亲得到消息 他的船由于风暴沉没了 poor man had lost everything可怜的男人失去了一切 and was left with only his little house and the village只剩下了他的小房子和村庄 the two greedy sisters were of course not pleased这两个贪婪的姐妹当然不满意 with the situation这种情况 all they want所有她们想要的 all they were doing were sitting around她们做的所有事就是无所事事 and complaining并抱怨 all the housework was left to beauty所有的家务都留给美丽的小女儿做 after a while their father heard that one of his lost ships had made it to the harbour过了不久 她们的父亲听说他丢失的一条船停到了港口 he started to prepare to go to the harbour right away他立刻开始准备去港口 and before he left在他离开之前 he asked his daughters他问女儿们 girls,what would you like me to bring back with“女儿们,你们想让我带回什么呢” a necklace shoes and bracelets“一条项链 鞋子 和手镯” and what about you beauty“那美女你呢” what would you like?“你想要什么?” Just a rose is fine Daddy“一朵玫瑰花就够了 爸爸” their father arrived at the harbour after a long journey长途的旅行后父亲终于到达港口 But neither his staff on the boat was there但是他的货物都不在船上 nor was the ship usable而且船也不能再用了 Sad and tired(他感到)难过和劳累 he started his journey back home他开始准备启程回家 It was almost dark when he reached the forest当他到森林的时候 天几乎都快黑了 The forest was dark森林里很黑 and cold and很冷 而且 It was snowing正在下着雪 He rode his horse for hours他一个小时接着一个小时的 and hours on the snow在雪中骑着他的马 And finally he saw a castle with the lights on然后最终 他看到一座灯火辉煌的城堡 Hello hello“你好 你好” He entered他走了进去 hoping they might help him希望城堡中有人能帮助他 It was a weird castle这是一个奇怪的城堡 The lights were on everywhere随处可见亮着的灯 The dinner table was full of food and晚餐桌上放满了食物 和 There was fire in the chimney烟囱里燃着火 But there was no one to be seen但是这里却看不到一个人 He called out for someone, but no one answered他叫了几声 可是却没有人回应 Finally, not being able to wait any more最终 他等不下去了 he first ate some food from the table, and then他开始吃桌子上的食物 然后 He slept in one of the beds他睡在其中一张床上 When he woke up in the morning当他早上醒来的时候 he found some new clothes next to the bed他在床旁发展了新的衣服 He went downstairs他走下楼去 And a nice breakfast was waiting for him on the table然后 桌子上有丰盛的早餐等着他 I can’t believe I’ve been helped like this“我不敢相信我被这样帮助了” Must be a fairy there on this castle. I wish I could thank her“一定是有精灵在这座城堡 我希望我能感谢她” When he was leaving the castle当他离开城堡的时候 He noticed the rose garden他注意到了玫瑰园 Couldn’t grant my other daughters wishes but“我无法满足我其他女儿的心愿 但是 at least I can get beauty a rose like she asked“我至少可以拿到一枝玫瑰给美女” Just as he picked a rose正当他捡起了一枝玫瑰花 he and his surroundings shocked with a loud roar他和他周围景物被一声咆哮所震动 An evil wild like beast appeared from behind trees一个看起来很邪恶的野兽 从树木后面走出 The father almost fainted when he saw the beast当看到野兽的时候 父亲几乎快晕厥过去了 I saved your life(野兽说)“我救了你” I fed you“我给你吃的” I gave you milk loaves“我给了你牛奶面包” And here you are“然而 你却在这里” stealing my roses“偷我的玫瑰花” Is this how you thank me“这就是你感谢我的(方式)?” The man went on his knees and begged him he wanted to父亲跪下了 然后向野兽祈求着 说他只是想 take one of those roses to his daughter拿这些花里面的一枝给他的女儿 What you did will not go unpunnished“你做什么才能免去责罚” Please forgive me“求你,原谅我吧” I would forgive you with only one condition“(想要我)原谅你只需一个条件” Talk to your daughters“跟你的女儿们说” If one of them agrees to leave you with me“如果任何一个人愿意离开你来陪我” I would grant your life“我就饶了你(让你活下去)” The man jumped on his horse父亲跳上了他的马 and sadly went on the road to his home然后悲伤地走在回家的路上 When at home, the man told his daughters about the last cargo当他回到家中 父亲给他的女儿们说他的货物丢失了 the broken boat and the beast in the castle船坏了 还有有野兽在城堡的事 But the two greedy sisters但是这两个贪婪的姐妹 were more worried about missing their gifts than about their father更关心她们丢失的礼物而不是她们的父亲 Daddy, if you allow me, I accept to go to the beast“父亲 如果你允许的话 我愿意去野兽那儿” The two sisters did not want to go near the beast而另两个姐妹却不想去接近野兽 So they immediately said that beauty should be the one to go所以她们立刻同意 美女应该是那个去野兽那儿的女儿 You wouldn’t even be in this mess if it were not for her asking for a stupid rose“如果不是因为她要那愚蠢的玫瑰花 你甚至不用去趟这浑水” Sad and hopeless痛苦且无望 her father took beauty and left to the castle美女的父亲带她离开(家)去城堡 When they arrived, everything was prepared for them, just like before当他们抵达的时候 所有的事情都为他们准备好了 就像之前一样 Food on the table, and no one else around食物在桌子上放着 周围没有其他人 Just as they sat down and started to eat只有当他们坐下 开始吃东西的时候 The beast came out. Beauty started to shake out of fear野兽出来了 美女开始感到害怕并颤抖着 Because the beast was as scary as her father had told her因为这野兽要比她父亲告诉她的更恐怖 Beast asked with a soft voice野兽用温柔的声音问她 Did you come here out of your own free will“你来这里是完全出于自愿的吗?” Yes“是的” Then in the morning, your father will go away and never come back“那么(明天)早上,你的父亲将会离开并且再也不会回来” When she woke up in the morning当她早上起来的时候 beauty knew that her father was gone美女知道她的父亲已经走了 And she found a nice breakfast waiting for her on the table然后她发现了一桌丰盛的早餐在桌上等着她 She wandered around in the garden for a while她在花园的周围徘徊了一会儿 she felt sad when she looked at the roses当她看向玫瑰花的时候她感到伤心 Then she went around in the castle然后她在城堡周围走动 One of the doors was full of roses(她发现)其中有一扇门满布玫瑰花 She wondered. She opened the door她很好奇 于是她打开了这扇门 and peeked inside然后往里面偷看了一眼 The room was decorated just like she would like it这间房间正好被装饰成她会喜欢的类型 And it was full of books, flowers and musical instruments这里面充满了书本 花朵 还有乐器 She thought that someone who could arrange her room like this would not hurt anybody她想 能把她的房间安排成这样的人应该不会伤害任何人 Then she took a book然后她拿出了一本书 On the book was written in gold letters一本用金色笔写上去的书 My dear queen, your wish is my command我亲爱的女王 你的愿望我可以帮你实现 I wish I could see my father now“我希望我现在就可以看见我的父亲” As soon as beauty said it, her father appeared in a mirror across the room在美女说完这话后 很快 她的父亲出现在这间房间镜子里 Beauty was so surprised. Seeing her father made her happy again美女感到惊奇 看见她的父亲 这使她再一次感到开心 That night, at dinner, beast appeared again那天晚上 晚餐时 野兽再一次出现了 Would you let me watch you, Beauty“你愿意让我来看看你吗 美女” You own the place. Why would you ask me“你拥有这个地方 为什么你要来问我” No, you own this castle now“不 现在你拥有这座城堡了” If you want, I can leave immediately“如果你想的话 我可以立刻离开这里” Beauty was very surprised with this answer美女对这个回答感到十分惊讶 I want to ask you something. Do you really think I’m ugly“我想问你些事情 你真的认为我丑吗” Beauty did not know what to say at first美女一时间不知道该怎么回答 but looked up at him, and nodded as if to say yes但却看着他 点了点头好似在说 是的 Do you think anyone would ever marry me“你认为有人愿意嫁给我吗” No. Beauty was shocked at the question“不!” 美女对于这个问题感到震惊 and answered too harshly. Beast turned around sad and left Beauty alone于是回答的有些刺耳 野兽伤心的转身走了 留下美女一个人 Beast was visting Beauty every night at dinner, and he treated her very kind野兽每天晚上晚饭时都会来看美女 他对待小美的态度非常友善 As days passed, Beauty felt like she was getting used to Beast随着时间的流逝 美女觉得她逐渐习惯了野兽 I wish he wasn’t that ugly“我真希望他不是那样的丑陋” As the months passed, Beauty was no longer afraid of the Beast, and she even started to like him一个月过去了 美女不再害怕野兽了 甚至有点喜欢上野兽了 But one day, she saw on the mirror that her father was ill但是有一天 她从镜子里看到到他的父亲生病了 She raced next to the Beast, and asked him to let her go home她跑到野兽身边 然后问他(能否)让她回家 cause she wanted to take care of her sick father因为她想去照顾她生病的父亲 Of course you can go“你当然可以去” But if you don’t come back, I might die from sadness“但如果你不再回来的话 我可能会伤心至死” I will come back, after a week. I promise“我会回来的 一个礼拜以后 我保证” Take this ring, and bring it with you. Beast gave Beauty a ring“拿着这个戒指 戴上它 ” 野兽给了美女一个戒指 When she will put this ring on her night stand, and fall asleep, she would wake back up in the castle当她把这个戒指放在床头时 入睡后 她在城堡中醒来 The next morning, she woke up in her own bed in her father’s house第二天早上 她就在父亲的家中自己的床上醒来 she ran to her father at once她立刻跑向她的父亲 When her father saw her, he was so happy that he felt better当她的父亲看见她的时候 父亲感到非常开心 以至于他感到病都好些了 In the afternoon, beauty’s sisters who recently got married came to visit their father中午的时候 最近刚结婚了的姐姐们回来看望她们的父亲 When they found Beauty at home, they were furious with envy and anger当她们发现美女在家里时 她们非常嫉妒和愤怒 and they decided to play a little trick on her于是她们策划了一个邪恶的计谋 Let’s make her stay here one more week, then the Beast will come and kill her我们来让她呆在这里超过一个礼拜 然后野兽就会回来 杀了她 The two sisters came next to Beauty crying于是这两个姐妹来到美女旁边开始哭泣 and told her that they didn’t want to be apart并告诉美女 她们并不想与美女分开 Beauty promised to stay one more week美女就答应多留一会 Not long after, Beauty realised that she missed Beast不久后 美女意识到她开始想念野兽 One day, she saw a dream where Beast was lifeless on the ground in the gardens castle一天 她做了一个梦 梦见野兽毫无生气的倒在城堡花园中的地上 She woke up in a sweat她醒来时满身是汗 What I’m doing is cruel and selfish我这么做真是太残忍 自私了啊 So she immediately took the ring out of her finger, put it on the nightstand beside her所以她立刻从她的手上取下戒指 把戒指放在她旁边的床头上 And she woke up in the Beast’s castle in the morning于是 第二天早晨她在野兽的城堡中醒来 She waited for the Beast all day long, but he was nowhere to be seen她等了野兽整整一天 然而野兽并没出现在任何地方 She waited for hours and hours她等了一个小时又一个小时 But Beast did not come但是野兽始终没来 Suddenly, she remembered her dream and ran to the garden突然间 她想到了她的梦 然后跑向花园 Beast was lying down, lifeless on the ground野兽躺在那里 毫无生气的躺在地上 Just like she saw him in her dream就像她在梦中看到的野兽一样 Beauty ran next to him and hugged him美女跑到野兽的身边 拥抱住他 Beast’s heart was still beating野兽的心跳仍在跳动着 He could barely open his eyes野兽微弱的睁开他的眼睛 and he spoke with great difficulty然后艰难的说 I thought you weren’t coming back“我以为你再也不会回来了” But I love you and I want to marry you“我爱你 我还想要嫁给你” At that instant, something magical happened一瞬间 奇迹发生了 Suddenly突然 the castle became brighter and more beautiful城堡变得更加明亮 更加美丽 Beauty looked around, stunned, and then美女看向周围 震惊了 she turned her head back to the Beast然后她又回头看向了野兽 But where the ugly Beast was lying但是躺在这里丑陋的野兽不见了 now there was a young and handsome prince现在变成了一个年轻帅气的王子 When she saw him, Beauty started to cry当美女看向他是 开始哭泣 Who are you, and where does the Beast go“你是谁 野兽去了哪里” Oh, don’t be afraid“哦 你别害怕” Prince stood up and started to tell王子站了起来 开始说 I’m the Beast, an evil which put a spell on me“我就是野兽 魔鬼给我下了咒语” turned me into that wretched form“把我变成了那个可怜的形象” If it were not for your love, that you would marry me“如果没有你的爱 你说你要嫁给我” If it were not for your love, I would have been a beast forever“如果没有你的爱 我将会永远成为野兽” When she heard this, Beauty was very happy当美女听到这些的时候 美女很高兴 with her good heart, she found true love她凭着她的善良 找到了真爱 Beauty and the prince got married, and lived happily ever after美女与王子结婚了 然后一直快乐的生活着 The End剧终 If you’re happy and you know it, clap your hands如果感到快乐 你就拍拍手 If you’re happy and you know it, clap your hands如果感到快乐 你就拍拍手 If you’re happy and you know it, and you really want to show如果感到快乐 你想表达出来啊 If you’re happy and you know it, clap your hands如果感到快乐 你就拍拍手 If you’re happy and you know it, stomp your feet如果感到快乐 你就跺跺脚 If you’re happy and you know it, stomp your feet如果感到快乐 你就跺跺脚 If you’re happy and you know it, and you really want to show如果感到快乐 你想表达出来啊 If you’re happy and you know it, stomp your feet如果感到快乐 你就跺跺脚 If you’re happy and you know it, shout hurray如果感到快乐 你就喊万岁! If you’re happy and you know it, shout hurray如果感到快乐 你就喊万岁! If you’re happy and you know it, and you really want to show如果感到快乐 你想表达出来啊 If you’re happy and you know it, shout hurray如果感到快乐 你就喊万岁! If you’re happy and you know it, say haha如果感到快乐 你就说 haha If you’re happy and you know it, say haha如果感到快乐 你就说 haha If you’re happy and you know it, and you really want to show如果感到快乐 你想表达出来啊 If you’re happy and you know it, say haha如果感到快乐 你就说 haha!!
  • 2021-08-24地球的结构Dr. Binocs..望远镜博士 Dr. Binocs!望远镜博士 Oh, hello friends!噢 你好 朋友们 The best part of a pizza is its crust! 披萨饼最棒的部分就是它的外皮了 Hmm… yummy…嗯 好吃 Just like this pizza,就像比萨一样 the earth too has a crust,地球也有一层外皮 but with no cheese in it.只是里面没有奶酪 Hahaha…哈哈哈 So let’s learn something about the structure of the earth today.今天我们就来了解一下地球的结构吧 It consists of the Crust, Mantle and Core!地球是由地壳 地幔和地核组成的 Zooooom in!咱们把镜头拉近 This is the Earth’s Crust.这是地壳 It consists of 组成地壳的是 all kinds of rocks, soil各种岩石 土壤 and everything you see above the earth’s surface!以及 地球表面所有的东西 You will be surprised to know that the crust,你会惊讶地发现地壳 that is the land on which we walk也就是我们脚下的陆地 is almost three times thicker than the crust under the oceans.几乎比海底的地壳要厚上三倍 And it extends to about 25 miles.其厚度大约有25英里 The earth’s crust floats on this layer which is called the Mantle.地壳下面这层结构 被称为地幔 It is made of thick, solid, rocky substance地幔是由厚实的岩石物质组成的 And amounts to about 85% of total mass of earth.地幔约占地球总质量的85% The first 50 miles of the mantle最初五十英里的地幔 consist of very hard, rigid rocks.是由坚硬的岩石构成 The next 150 miles之后150英里的地幔 are made up of super-hot solid rocks.是由极热的固态岩石构成 Below that再往深处 for the next several hundred miles the earth’s mantle接着数百英里的地幔 is believed to be则被认为是 made up of very solid and sturdy rock materials.由异常坚固的岩石材料构成 The mantle is about 1800 miles thick地幔厚度大约有1800英里 and by far the largest layer of earth.是地球结构中最厚的部分 The earth’s outer core构成地球外核的 is made up of super-hot liquid molten substance是温度超高的被融成液态的物质 called Lava.它被称为熔岩 This lava is believed to be made of iron and nickel.人们认为熔岩的成分是铁和镍 It extends to a depth of 3000 miles beneath the earth’s surface.地球外核厚度达到了3000英里 And finally, we have reached earth’s inner core.最后 我们抵达了地球内核 The inner core extends another 900 miles towards the center of the earth.内核的边界距离地球中心有900英里 It is believed that this inner core人们认为地球内核 is a solid ball made of iron and nickel.是一个由铁和镍组成的固态球体 Trivia Time小常识时间 The crust occupies less than 1% of earth’s volume.地壳在地球体积中的占例低于1% The inner core is the hottest part of the earth内核是地球最热的部分 and it is as hot as the surface of the sun已经达到了太阳表面的温度 Surprising, isn’t it?让人很惊讶 不是吗? Looks like it’s time for me to Zoooom out看来我该在被烤熟前 Before I get baked in this heat.把镜头推远结束本期视频了 Tune in next time for more fun facts!记得下次来收听更多有趣的话题哟
  • 2021-08-24为什么头发会变灰白?Binocs博士秀 嗨朋友们 在今天的节目开始前 我有一个重要的消息要告诉大家 你一定有注意到 由于实行了某些新的规则 不能在线评论了 不过 别担心 朋友们 大家仍然可以通过邮件发表有价值的 意见评论 观点以及喜爱的东西 邮箱地址peekabookidzfeedback@gmail.com 同样还可以通过 Instagram和Facebook关注我们 与我们保持互动 我们期待着你的来信 Kitty 瞧 这是我表哥“宇航员Binocs” 这一位也是我表兄“Binocs教授” 最后这位是我曾祖母Binocs 哈哈 Kitty 我知道你在想什么 你一定在想 为什么她的头发是银色的 对吗? 朋友们 我想你们跟Kitty一样 也想知道为什么祖父母的头发会这么白 他们年轻的时候 头发却是不一样的黑色 而今天我们的节目 将带大家一起进入银发的世界 为这个有趣的问题找到答案 “为什么我们会有白发呢?” 跟我一起去近距离看看吧 当我们年龄越来越大 一般在五十岁左右 我们的黑头发会自然地变白 或变成银色 有的人喜欢头发花白 而有的人则会用人工染发剂 将头发染成黑色 但问题的关键是 我们的头发起初为什么会变白呢? 要想知道原因 需要先知道 我们头发颜色的决定因素 可以看到 我们的头发其实有两部分 上面的部分为发干 就是从头上长出来有颜色的这部分 以及下面被称作发根的部分 发根能让头发附着在头皮 毛囊内的部分我们称之为发囊 我们头上的每一个发囊都有黑色素细胞 能产生一种叫黑色素的特殊化学物质 黑色素让我们的头发呈褐色 金色 黑色等多种颜色 头发颜色深浅取决于 每根头发黑色素的量 也就是说 黑色素越多 头发颜色越深 但是 随着年龄增长 黑色素细胞开始凋亡 逐渐丧失产生黑色素的功能 随着时间的推移 黑色素的减少 头发颜色会逐渐淡化 直至变成灰色 最终 当发囊不再有黑色素 白发就会开始脱落 这就是头发随年龄增长而变白的大致过程 不过年龄并不是唯一的原因 人的头发可在任何年龄阶段变白 没错 有的人年纪轻轻就有白发 有人还在上学就有白发了 而部分幸运的小伙子 过了三十岁 头发仍然保持着黑色 出现白头发的迟早 取决于遗传基因 也就是说 大多数人头发开始变白的年龄都差不多 跟我们的父母 祖父母一样 但是 有没有办法不让头发变白呢? 老实说 无能为力 但是 科学家们相信 要阻止头发变白 要么延长发囊里黑色素细胞的存活寿命 要么增加发干部分 贮存黑色素干细胞的能力 这样就可以持续补充缺失的色素细胞 闲聊时间 你们知道吗 头发毛囊能产生少量的过氧化氢 没错 就是作为一种廉价的方式 已使用数十年的化学漂白剂 科学家们还说 低水平的维生素B12 会导致头发色素的丢失 不仅如此 研究还发现维生素D3 血清钙 血清铁蛋白水平低了 人也会过早长白发 但是朋友们 请记住 不论头发颜色如何 接纳真实的自己 始终是最重要的 希望大家能够喜欢今天的节目 下次再见 我是Binocs博士 跟我一起出去吧 啊 别在意 嗨 孩子们 喜欢我的节目吧 在你离开之前 别忘了点一下这里的订阅按钮 你就不会错过我的小视频了 哈哈 下次再见了哟
  • 2021-08-24头发变白的原因是什么?人步入老年的迹象之一 就是他们的头发变白了 但这是为什么呢? 为什么头发会因为年纪增长而变白呢? 今天的节目《大问题》会给大家揭晓答案 每个人的头发有两部分 发干和发根 当说起头发 人们想到的大多都是发干 也就是我们头皮外面 长长的 有着不同颜色的部分 而发根是使头发附着在头皮的部分 每一根头发的发根 都挤在一个叫做毛囊的小洞里 这样头发就会粘在头皮上 这些毛囊会生产一种叫做黑色素的特殊化学物 它决定了我们头发 眼睛和皮肤的颜色 黑色素越多 头发 眼睛和皮肤的颜色就会变得越深 随着年纪的增长 我们毛囊中的特殊细胞会开始死亡 因为这些特殊的细胞赋予我们头发颜色 于是没有任何颜色的头发开始从毛囊中长出来 好吧 这就是你的头发会变白的原因 但是当你年轻的时候 你是否能做些什么来阻止头发变白? 答案是 不能 有些人在年轻的时候就开始长白发了 而另一些人不会那么早长白发 但最终每个人都会有白发 判断你变老后 头发将如何变化的最好办法是 看看你的父母和其他年长的家庭成员 你的头发如何老化是遗传决定的 意味着是你的父母传给你的 所以很有可能的是 当你长大后 你的头发看起来会很像你的父母之一 现在你知道为什么头发会变成白色的了 如果您有问题并希望得到解答 请关注我们 并记得订阅更多剧集 《大问题》 精彩内容只在梦工厂TV
  • 2021-08-24为什么二月只有28天?“Feburary”一词中不仅多了个奇怪的“r” 使其不易拼写 它还有一个很悲剧的差别: 它是一年中最短的月份 但是 为什么二月只有28天? 让我们在今天的视频中找到答案吧 《大问题》 我们得追溯到古罗马来回答这个问题 不难看出 西方世界使用的现代历法 是基于旧的 凌乱的 前后不一的 罗马人用的历法 根据传说 罗穆卢斯——罗马的第一任国王 实行一种10个月的历法 从3月开始 12月结束 没错 一月和二月甚至还没出现 由于日历主要用于帮助作物的种植和收割 冬天就成了一个无人记载的存在 下一任罗马国王做出决定 是时候修复罗穆卢斯启动的 草率的历法系统了 他很好地把阳历 和大约355天长的阴历排列一致 他把一月和二月加在12月之后 为了弥补所有新增加的日子 他把二月作为一年的最后一个月 但是国王还没有把日历修正好 要知道 古罗马人总是迷信偶数不吉利 国王的解决方案是 他试图把每个月都弄成奇数天 但问题是 为了使一年有355天 有一个月必须是偶数天 没人知道为什么二月是那个不幸的月份 但最可能的答案往往最简单 二月是一年中的最后一个月 终于 罗马的第二任国王有了自己的历法 一切都很完美 但有一点: 因为地球绕太阳公转需要365天 而国王的日历上只有355天 几十年后 季节和月份会不同步 在这时 尤里乌斯•凯撒登上了历史舞台 罗马人不知道这是哪一天或哪一月 因为这种历法太混乱了 于是凯撒决定革除旧历法 制定他的新历法 为了和公转日期一致 他把一年定为365天 调整了月份的顺序 更改了月份的名字 就连“July”都根据他的名字命名 现在 “Februray“在历法顶端的正确位置上 仍然是28天 我们不知为何凯撒留给二月天数这么少 但他很可能会把二月延长 要是他知道3月15日会发生什么 现在你知道二月是28天 因为这只是一种事后想法 如果您有什么问题 请在下方评论 别忘了订阅更多的剧集哦 《大问题》 尽在《梦工厂TV》
  • 2021-08-24男性真的比女性强壮吗?今天我们来解答一个老生常谈的问题 希望可以下个定论 男性真的比女性更强壮吗? 本期Colossal Questions为您解答 似乎男性通常都比女性更加强壮 但事实并非如此简单 男性女性都有各自的优势和劣势 他们的强壮程度是差不多的 原因如下 的确 男性通常比女性更高 更重 肌肉更大块 研究表明 男性的肌肉平均比女性多20磅 上肢力量比女性强30%-40% 这是因为 相比女性 男性天生产生更多的荷尔蒙和睾丸激素 它们能让你的肌肉生长 但是女性抵御疾病的能力更强 与男性相比 女性体内产生更多的抗体和血细胞 能更快地抵御疾病 也就是说 平均而言 女性患传染病的几率更低 生病后 也恢复得更快 现在 我们聊聊男性 男性的心血管系统即心脏 肺和血管通常更大 这意味着男性体内可以储存更多的能量 以备后续使用 血流也有助于男性伤口更快愈合 而女性在这点也不落下风 她们的血压似乎比男性低 这意味着女性患心血管疾病的几率本身就小 男孩患抑郁症或焦虑症的几率较小 而女性患精神失常的几率较小 所以 男性真的比女性强壮么? 如果只看肌肉质量的话 是的 男性通常更强壮 但科学告诉我们 男性和女性都很强壮 只是不同方面罢了 现在 你知道啦 男性和女性都一样强壮 如果你想了解某个问题的答案 请在下方留言 更多精彩 请订阅 COLOSSAL QUESTIONS 梦工厂TV 独家呈现 [音乐]
  • 2021-08-24睡觉时间啊 睡衣上的香蕉 香蕉呀 睡前牛奶 牛奶 哈啊 噗 怪兽牛奶 傻瓜牛奶 我房间里的月亮 摇篮月亮 月亮 月亮上的我 跃过月亮 睡前故事书 泡澡故事书 好笑的书 书 红色上衣 蓝色上衣 宽松的上衣 上衣 柔软的上衣 娃娃屋 你好呀 房子 母鸡的房子 明亮的房子 灯塔 泰迪熊塔 花朵泰迪熊 泰迪熊 晚安哦 呼噜呼噜叫的猫咪 午睡的猫咪 猫 酷酷的猫咪 粉色的猫咪 模仿的猫咪 爱你哦 小狮子 在睡觉的狮子 抱抱熊 特别为我定制的泰迪熊 泰迪熊 毛绒泰迪熊 装满水的浴缸 可以洗洗干净的浴缸 浴缸 巨大的浴缸 宝宝浴缸 泡泡澡 家鼠 老鼠 昏昏欲睡的老鼠 驴 棕色的驴 灰色的驴 大口吃干草的驴 柔软 蓬松又洁白的云朵 云朵 舒服的云朵 暖和的袜子 分趾袜 袜子 狗狗穿的袜子
  • 2021-08-24点击 海豚《碰碰狐》 #点击 点击 点击# #点击 点击 点击# #啦 啦 啦 啦 啦 啦# #点击 点击 点击# #点击 点击 点击# #点击 点击 点击# #我是一只海里唱歌的海豚# #啦 啦 爱玩的海豚# #啦 啦 啦 啦 啦# #啦 啦 友好的海豚# #啦 啦 啦 啦 啦# #点击 点击 点击# #点击 点击 点击# #在大海里游泳# #在深蓝色的大海里# #点击 点击 点击# #点击 点击 点击# #跳进大海里# #在深蓝色的大海里# #啦 啦 爱玩的海豚# #啦 啦 啦 啦 啦# #啦 啦 友好的海豚# #啦 啦 啦 啦 啦# #点击 点击 点击# #点击 点击 点击# #在海里吹口哨# #在深蓝色的大海里# #点击 点击 点击# #点击 点击 点击# #在海里玩耍# #在深蓝色的大海里# #点击 点击 点击# #点击 点击 点击# #一只海豚在海里唱歌#
  • 2021-08-24儿科医生揭穿养娃的16个错误观念Aliza Pressman: “Baby walkers help babies walk.”“学步车帮助宝宝走路” Baby walkers do not help babies walk.学步车不能帮助宝宝们走路 Blair Hammond: “Picking up a crying baby will spoil them.”“抱起正在哭闹的宝宝会宠坏他们” Pressman: Picking up a crying baby will not spoil them.抱起正在哭闹的宝宝不会宠坏他们 Hammond: “Putting honey on a dummy,”“给宝宝用涂了蜂蜜的假奶嘴” aka a pacifier, “will help with teething.”也就是安抚奶嘴 “有助于长牙” This is a dangerous myth, actually.这实际上是一个危险的错误观念 “Teething can cause fevers.”“宝宝长牙时会发烧” I get paged about this myth all the time.我总是由于这个错误观念被传呼 Hi and welcome.大家好 I’m Dr. Blair Hammond.我是Blair Hammond博士 I’m a general pediatrician at Mount Sinai Hospital.我是西奈山医院的儿科医生 Pressman: And I’m Dr. Aliza Pressman.我是Aliza Pressman博士 I’m a developmental psychologist我是一名发展心理学家 and cofounder of the Mount Sinai Parenting Center.也是西奈山育儿中心的联合创始人 The other cofounder.其中一个创始人 Hammond: The other. We did it together.其中一个 我俩一起创办的 Today we’re going to be actually talking about今天我们的节目内容是 debunking myths with babies.揭穿养娃的错误观念 Ready, Aliza?准备好了吗 Aliza? Pressman: Let’s do it.来吧 Hammond: All right!好的 First myth.第一个 Pressman: “Babies who walk and talk early”早走路 早开口说话的宝宝 are the brightest of their peer group.”是同龄人中最聪明的” Even though an early talker may tend to do better虽然早开口说话的宝宝日后的语言能力 in language skills later in life,会更强一些 it doesn’t mean that children who are not early talkers但这并不意味着说话较晚的宝宝 aren’t going to equal or rise above those talkers.达不到或无法超过说话较早的宝宝的语言水平 And with walkers, which is a different thing,走路的早与迟又是另一回事 that’s motor development.这跟运动发育有关 Motor development is better at predicting delays运动发育能更好地预测发育迟缓 and associations with other issues that may arise.以及其他可能出现的发育问题 So if you notice there’s a delay in walking,所以 如果你发现宝宝走路时间晚 that’s an important thing to talk to your pediatrician about.一定要把这件重要的事告诉儿科医生 But it is not necessarily true or likely true不过 早走路就能让你考上哈佛的说法 that an early walker is going to get you into Harvard.不一定是真的 也不太可能是真的 Hammond: “Never wake a sleeping baby.”“永远不要叫醒熟睡的宝宝” And this is a myth 这是错误的 in particular in the first few weeks of life.尤其是在宝宝出生后的几个周里 So, newborn babies really need to feed frequently,你真的需要经常给新生儿喂奶 and if you happen to have a sleepy baby,假如你的宝宝很爱睡觉 you would actually wake them在他出生后的前几周 every three to four hours to feed at that time.每三到四小时你就要把他叫醒 给他喂奶 Pressman: That’s right.没错 Between five and six weeks of age,宝宝在五到六周的时候 day and night sleep is organized.白天和晚上的睡觉时间是有规律的 So if they’re sleeping more than three,所以 如果他们白天的睡觉时间超过三小时 three and a half hours during the day, at that point,或者三个半小时 在这个时候 you really want to give them a little nudge你真的要把他们叫醒 so that you can get them nice, consolidated sleep in the nighttime.这样他们才能在晚上睡个好觉 Hammond: As children get older,等宝宝们长大一点了 you can let them sleep longer periods of time.你可以让他们睡得久一些 Pressman: “Lullabies help babies sleep.”“摇篮曲帮助宝宝入睡” [laughs][笑声] This one is actually事实上 sort of a myth, but not completely,它算是一个错误观念 但也不完全是 because the act of singing a lullaby, that calming music,因为唱摇篮曲这种舒缓的音乐 can calm both you and your baby.可以让你和宝宝都安静下来 But it isn’t a magic pill that is going to但摇篮曲并不是什么灵丹妙药 make sure that your baby falls asleep.它不能保证让宝宝睡着 Finding ways to soothe your infant,找到把宝宝哄睡的方法 especially using music and touch is, of course,特别是采用音乐和抚摸的方式 going to relax them and induce a sleepier state.确实可以让他们放松身心 并产生困意 Hammond: “Naps aren’t necessary.”“没有必要午睡” Pressman: Oh.噢 Hammond: In young children and babies, naps are necessary.小孩子和婴儿还是有必要午睡的 Pressman: Very.很有必要 Hammond: I always say that people who are like,我常常说: “I’m gonna keep my baby up all day那些为了让宝宝睡整夜觉 so they sleep all night in that first year of life,”就不让宝宝午睡的人 you’re going to have an angry baby,你们会有一个易怒的宝宝 and that is not going to be a fun baby to take care of.照顾这样的宝宝可不是一件愉快的事 And, in fact, in this young age,事实上 宝宝还小的时候 especially that first year of life,特别是出生后的第一年 we really do focus on naps我们要让他们睡午觉 to help your baby actually learn better, control their behavior,这样能帮助他们更好地学习 控制自己的行为 and fall asleep better.以及更快地入睡 Because an overly tired baby因为太疲倦的宝宝 is actually going to sleep worse.睡眠质量更差 Pressman: You really need to keep even one nap.你一定要让他们在白天也睡上一觉 You don’t want your infant or toddler awake你不会想让你的小婴儿或刚会走路的宝宝 more than about five hours at a time.连续五个小时都醒着 So, up until three years of age,所以 三岁之前 naps are really important for午睡对宝宝白天的行为表现 daytime behavior, emotional development,情绪的发展 以及夜间规律而稳定的睡眠 and nighttime organized, consolidated sleep.都是非常重要的 “Babies should be sleeping through the night by three months.”“宝宝在三个月大的时候就应该睡整夜觉” Hammond: We all hope for that.我们都希望是这样 Every mother wishes that.每个妈妈都希望是这样 Pressman: If your baby isn’t sleeping through the night如果你的宝宝夜间要喝一到两次奶 because they need to have a feeding所以不能睡整夜觉 or two feedings, that’s OK.这没关系的 Up until four months,在四个月之前 you really want to let your infant direct how that’s going to go.你得让宝宝自己决定他们要睡多久 And then, starting after four months,之后 从宝宝满四个月开始 between four and six months, you can think about在四到六个月之间 your influence on their nighttime sleep.你可以考虑调整一下他们的夜间睡眠 Hammond: And you might lose your friends如果你总是向朋友炫耀 if you keep bragging about your 3-month-old你家三个月的宝宝能睡整夜觉 who’s sleeping through the night and they have而她家三个月的宝宝却做不到 a 3-month-old who’s not.你可能会失去这个朋友 Oh, this is a good one.噢 这个好 Pressman: “Certain toys will make babies smarter.”“有的玩具能让宝宝更聪明” Hammond: Right?对吗? Pressman: Myth. Hammond: Myth.-不对 -不对 Pressman: The myth is that错误的是 it’s the toy making the baby smarter.人们认为是玩具让宝宝更聪明的 What helps your baby grow smarter is the interaction让宝宝更聪明的是玩玩具的时候 between you and your baby while playing with a toy.你和宝宝之间的互动 If you just stick a baby down with a bunch of blocks,如果你只是给宝宝一堆积木 your baby is not growing smarter from those toys.他是不会因为这些玩具而变聪明的 The best way to grow your baby’s brain宝宝出生后的一年里 in that first year of life is through帮助他们大脑发育最好的方法 interaction with a caregiver,就是让他们和看护人一起互动 and you can then talk about the toy, describe the toy,你可以谈论这个玩具 描述一下它 support your infant’s discovery of the toy通过语言和描述 through language and descriptions,引导宝宝对玩具进行探索 but the toys itself are never going to make your baby smarter.但玩具本身是不会让宝宝变聪明的 Another thing to keep in mind另外你要记住 is that when you are playing with your baby,和宝宝一起玩耍的时候 you might find yourself using a singsong voice你会发现自己的声音像唱歌一般 with high-pitch sounds and, like, a big, exaggerated face.你的音调很高 面部表情很夸张 And some people might even think you’re talking baby talk.有人会认为你在学宝宝讲话 The truth is that that is called “parentese,”事实上这叫“父母语“ and it is one of the most important uses of language.它是语言最重要的用途之一 When you use that voice and you say, like:当你用这种语调说话 比如: “[gasps] Look at that block you’re playing with![吸气]看看你玩的那块积木! Is that a brown block?它是一块棕色的积木吗? Are you putting that on top of a blue block?”你要把它放到一块蓝色积木上吗? The important part of that is that重要的是 your language is so engaging你的语言非常迷人 that parentese actually is associated with such boosts所以父母语对孩子今后的语言发展 in language development later in life.能起到很大的促进作用 Now, baby talk, where you’re saying当你对婴儿这样说: “goo goo gaa gaa goo goo gaa gaa,”“咕咕嘎嘎 咕咕嘎嘎” that is not useful for anyone,那对谁都是没用的 except if it gives you tremendous delight当这样的行为能给你带来巨大的快乐 and you just can’t help yourself and you really just你情不自禁想要这么做 need to just get in there with that baby.并且你是真的想要融入宝宝的世界 It’s your language and your interaction通过你的语言 你和宝宝之间的互动 and your use of parentese that’s gonna really还有你对父母语的运用 get you that boost in intellectual development才能达到你想从玩具中获得的那种 that you are hoping to get from the toy.促进宝宝智力发展的效果 Hammond: “Bouncing babies will cause them to be bowlegged.”“蹦蹦跳跳的宝宝腿会变弯” I hear this all the time.我经常听到这句话 In fact, I have lots of parents say to me right after a baby’s born,事实上 很多父母在孩子刚出生时就对我说: “Oh, no, he’s bowlegged!”“噢 天啊 他的腿是弯的!” And the interesting thing 有趣的是 is it’s because when a baby is in the womb,这是因为宝宝在子宫里的时候 most babies actually have their legs crossed.他们中大多数是把腿盘起来的 So they come out a little bowed-looking,所以出生之后 他们看起来有点驼背 and it is normal for the legs to actually腿也是弯的 have that appearance.这是正常的 And many babies have that instinct很多宝宝天生就想站立 to want to stand and bear weight on their legs,想用腿来承受身体的重量 and that is actually fantastic for their motor development.实际上这对他们的运动发展非常有益 You’re socially engaging with them,你和他们进行互动 but you’re also helping them也是在帮助他们 develop muscle strength and control.增强肌肉力量和控制力 So this is absolutely a myth.所以这绝对是一个错误观念 Many grandparents are into it.祖父母们对这句话深信不疑 They’re also like,他们还会说: “Don’t let your baby sit till they’re ready,“没到时候别让你的宝宝直立地坐着 ’cause it’s gonna ruin their back.”因为这会损伤他们的背部” That is another myth.这是另一个错误观念 Pressman: I would only add: You don’t need a contraption.我只会加一句:不要使用奇怪的装置 So, a jumper is not a good way to help a baby develop.所以 跳跳吊椅不是帮助宝宝发育的好工具 Hammond: Yep. Because they go more on the toes,是的 因为他们主要靠脚趾头用力 and that’s something that’s not recommended所以大多数儿童发育专家 by most developmental specialists.都不推荐使用跳跳吊椅 Pressman: “Excessive crying means something is wrong.”“宝宝哭得很厉害说明他们身体出问题了” If you’re feeling like your infant is excessively crying,如果你觉得你的宝宝哭得厉害 the first thing that you want to do你要做的第一件事 is talk to your pediatrician to make sure就是去找你的儿科医生 that there isn’t anything wrong medically.确保宝宝的哭闹不是因为身体不适 Hammond: You sort of do a one-over你让宝宝做一个全面检查 on your whole baby to make sure,确保他们身体没出问题 “All right, my baby seems OK, my baby’s fed,好了 宝宝看起来很好 他吃饱了 my baby’s peed and pooped,大小便也正常 whatever, what’s going on here?”那么到底哪里出了问题呢? And then often it’s just,通常来说 they’re so awake and frazzled,他们只是太疲惫了 又睡不着 they can’t calm their body down at this young age.他们太小 还不能使自己的身体平静下来 The most fussy period is between three to six weeks of life.宝宝出生后的三到六周是最难熬的时候 And there is something called infant colic,有一种现象叫婴儿肠绞痛 which people have probably heard about.大家可能听说过 And the definition of colic is crying at least three hours a day,肠绞痛的宝宝一天至少哭三个小时 at least three days of the week,一周至少有三天都会哭 for at least three weeks.这种情况至少持续三个周 A good thing I tell parents is if the baby calms down我要告诉父母们 如果你轻轻地摇晃宝宝 when you’re shaking them in a gentle rocking way,安抚他们 他们就会安静下来 shushing them, and you’re like,但是你说: “Oh, if I hold the baby, they stop crying,”噢 我抱着他 他就不哭 but every time I put them down, they cry.”但只要我把他放下 他就又开始哭了” That’s reassuring to me that there’s not 我听到这些话会感到安心 some real painful issue going on and that the baby is comforted by you因为宝宝没有身体不适 他得到了你的安抚 and just needs that help.他只是需要这种安抚 In general, I say to people,我一般会对大家说 if the baby cries more than an hour straight如果宝宝连续哭一个小时以上 and nothing is calming them down,并且怎么做都不能使他们安静下来 check in with your pediatrician.去看儿科医生吧 Pressman: And you could be doing everything right可能你做了所有正确的事 and it’s not going to stop the baby from crying 但还是不能在短时间内让宝宝停止哭泣 in the short term, but again, 但我要再说一次 you will be helping their long-term development.你的安抚将有助于他们的长期发展 Hammond: “Picking up a crying baby will spoil them.”“抱起哭闹的宝宝会把他们宠坏” Pressman: Picking up a crying baby will not spoil them.抱起哭闹的宝宝并不会宠坏他们 Don’t let anybody tell you otherwise.如果有人这么说 你别相信 Hammond: People are often very worried about spoiling young infants.人们常常担心把小婴儿宠坏 Pressman: Please spoil your young infants.请宠坏你的小宝宝吧 Hammond: Yes, fall in love.是的 好好爱他们吧 I say my job as a pediatrician作为一名儿科医生 is to help you fall in love with your baby.我的工作就是让你好好爱你的宝宝 I want you to touch that baby.我希望你抚摸宝宝 I want you to snuggle the baby.我希望你抱抱他 And the feeling a baby has当宝宝沮丧 哭泣 of being upset and crying and stressed,感到压力的时候 and then when they calm with you,你让他平静下来 that actually teaches their brain实际上教会了他们 to go from upset to calm,如何由沮丧变得平静 and that is a life skill.这是一项生活技能 Now, as your child gets older,那么 当宝宝长大一点了 can you spoil a baby or a child who’s crying and saying,他哭着对你说:“我晚饭想吃棒棒糖” “I need lollipops for dinner”?这时你会惯坏他吗? Pressman: Yes, you can. Hammond: Obviously!-是的 你会惯坏他 -显然 Do not then just pick them up不能就这样把他抱起来 and give them the lollipop.然后还把棒棒糖给他 That is a totally different thing.这是另外一回事了 In these first months of life,在宝宝出生后的前几个月 comforting your baby and calming their body down你安抚他 使他平静下来 actually helps them be calmer humans long-term.实际上可以帮助他们今后成为更冷静的人 Oh.噢 “Putting honey on a dummy,”“给宝宝用涂了蜂蜜的假奶嘴” aka a pacifier, “will help with teething.”也就是安抚奶嘴 “能帮助他们长牙” This is a dangerous myth, actually.这个错误观念实际上很危险 Some myths are just like,有的错误观念 your friends are talking about that, don’t believe it.是你的朋友们提到的 你别相信 This one is actually dangerous.这个观念是很危险的 Babies should not have honey in the first year of life.宝宝在一岁前不应该吃蜂蜜 And the risk of honey comes蜂蜜的危害来自于一种细菌 from a bacteria called botulism.它会使宝宝发生肉毒杆菌中毒 The spores from botulism your body can process,你可以消化掉肉毒杆菌的孢子 but young infants cannot,但是小婴儿不能 and it can actually cause paralysis,肉毒杆菌中毒会使宝宝瘫痪 meaning a paralyzed, limp infant,也就是说宝宝会残疾 四肢无力 which could be quite dangerous,显然 肉毒杆菌中毒是十分危险的 life-threatening, obviously.会威胁宝宝的生命 No honey in the first year of life for any baby.在一岁前 每个宝宝都不能吃蜂蜜 It’s really something everyone should know.每个人都应该知道这一点 Pressman: “Baby walkers help babies walk.”“学步车帮助宝宝走路” Baby walkers do not help babies walk.学步车不能帮助宝宝走路 In fact, there are some small studies事实上 一些小型研究表明 that show that babies who use walkers用学步车的宝宝 walk later than the babies that do not use walkers.比没有用学步车的宝宝走路更晚 Do not get a walker,不要买学步车 because you want your baby’s muscles to develop因为你应该让宝宝的肌肉正常地发育 the way they’re supposed to, without contraptions.而不是借助其他工具 Hammond: The AAP, that’s the American Academy of Pediatrics,AAP 也就是美国儿科学会 recommends against walkers.建议大家别用学步车 No. 1, because they do delay walking.首先 学步车耽误宝宝走路 But No. 2,其次 because children can actually fall in walkers,坐在学步车里的宝宝可能会摔跤 fall down stairs in walkers,并随着学步车摔下楼梯 and have the ability to reach things有了学步车 宝宝能触碰到 that are developmentally inappropriate,危害身体健康的东西 like hot stoves, hot water.比如很烫的炉灶 热水 I’ve had many patients be like:有很多父母对我说: “Oh, my gosh, we put it on a registry.“天啊 我已经下单了” I feel so bad. I already got it.” “糟糕 我已经买了” Return it.退货吧 "Teething can cause fevers"“长牙会引起发烧” I get paged about this myth all the time.我总因这个错误观念被呼叫 People will say: “My baby has a 103 fever.人们说:“我的宝宝烧到了103华氏度 It’s just ’cause they’re teething.”这是因为他们在长牙” That is a myth.这是错的 Teething should not cause fevers.长牙不会引起发烧 It might make your baby a little more fussy.长牙的时候 宝宝可能会有些烦躁 It might make them eat a little less,他们会比平时吃得更少一些 but it should not cause fever.但长牙不会引起发烧 It should not cause cough.不会引起咳嗽 It should not cause runny nose, vomiting.也不会让宝宝流鼻涕或呕吐 All those things make me think your baby如果宝宝有这些症状 has some type of infection.我认为他们受到了感染 Something else going on.出了别的问题 So if you have a fever如果你的宝宝发烧了 and you’re concerned about the cause,你担心他发烧的原因 check in with your pediatrician.那就带他去看儿科医生吧 Pressman: “Babies need water when it’s hot.”“天热的时候 宝宝需要喝水” Hammond: This is certainly a myth,这当然是不对的 especially in the beginning of life.尤其是在宝宝刚出生的时候 So, the first month of life,宝宝在出生后的一个月里 some parents and grandparents will say:有的父母和祖父母会说: “Your baby needs water.“天气太热了 It’s hot out.”宝宝需要喝水” Your baby should not be given water.千万别给宝宝喝水 We say breast milk or formula only for newborn babies.我们说新生儿只能喝母乳或者配方奶 Their kidneys are actually immature,新生儿的肾脏还没发育成熟 and giving water could mess up their electrolytes给他们喝水会破坏他们体内的电解质 and be quite dangerous, in fact.事实上还非常危险 As your child gets older, around six months of life,等宝宝长大一点 大概在六个月的时候 we do encourage you to introduce water for your child.这时我们建议你给宝宝喝水 But, in general, many people are under the impression, like,但是 人们脑海中都有这样的印象: “Oh, water is a better hydration fluid与母乳和配方奶相比 than breast milk or formula.”水是更好的补水液体 But actually breast milk and formula但事实上 母乳和配方奶对宝宝来说 are great for hydrating babies.是非常好的补水液体 “You should avoid giving peanuts, fish,“在宝宝会走路之前 and eggs to your child until they’re a toddler.”你要避免给他们吃花生 鱼和鸡蛋” This was a big myth.这是一个很大的误区 Pressman: Big myth.是的 Hammond: And, in fact, it used to be supported by the medical community,事实上 医学界曾经支持这种说法 but there now is really strong data但是现在我们有充分的数据证明 showing that actually earlier introduction早一点开始食用这些食物 increases what we call tolerance,能够增加我们的耐受性 meaning that you won’t have an allergic reaction.也就是说以后你不会对这些食物产生过敏反应 But there in fact is even an FDA recommendation事实上 甚至食品和药物管理局也建议 that infants between four to six months of life在宝宝四个月到六个月的时候 have peanut products introduced into their diet可以在他们的饮食中添加花生产品 because there is such compelling data因为有十分可信的数据证明 about the reduction in food allergy.这样会减少食物过敏的发生 I always say, speak with your pediatrician我总说 去问问儿科医生 about exactly how to start it要给宝宝喂什么食物 and if you have specific family risk factors.以及你们家有没有遗传风险因素 Again, I may emphasize the one food我要再强调一次 在宝宝一岁以前 you do not introduce: no honey till one year.绝对不能给他们吃蜂蜜这种食物 Pressman: “Playing classical music“给宝宝播放古典音乐 can make your baby smarter.”可以使他更聪明” Playing classical music will be你能为宝宝做很多事 one of the many things that you can do,为他播放古典音乐是其中一件 certainly, to surround them with the kinds of当然 这些事能让宝宝拥有这种 stimulating auditory experiences刺激听觉的体验 that will engage their brain.能够促进他们的大脑发育 However, playing classical music in and of itself然而 古典音乐本身 is not going to make your baby smarter.不会使你的宝宝更聪明 Hammond: Actually, the back-and-forth interactions实际上 在宝宝和看护者之间 that a baby has with a caregiver这种反复的互动中 where they hear real words宝宝听到了实实在在的语言 usually spoken in your native language这语言通常是你的母语 so that you can speak with most expression所以你说话的时候表情非常丰富 and you’re showing delight and responding to the baby,你表现出喜悦并回应宝宝 that is what promotes the language development这才最有利于宝宝的语言发展 and the social development of the brain the best.以及社交技能的发展 “A newborn’s length will tell you how tall they’ll be.”“通过新生儿的身高可以预测他们未来的身高” Lots of parents obsessively think about the growth chart.许多父母痴迷于宝宝的生长曲线表 I will confess,我得承认 I sometimes obsessively think about my children’s growth chart.有时候我也对我家孩子的生长曲线表很痴迷 The biggest predictor of your child’s final height预测孩子最终身高最准确的方法 is actually parents’ height.就是看父母的身高 So, we call something “mid-parental height”因此 我们所说的“父母身高预测法” as the best predictor.就是最好的预测方法 And another big predictor is when the baby,另一种准确的预测方法 the child, goes through puberty.就是看孩子的青春期 So, usually the longer you delay puberty,所以 通常青春期延迟的时间越长 the more years of growth you have.生长的时间就越多 So, there are some children who are short in seventh grade,所以 有的孩子在七年级的时候很矮 but they keep growing,但他们一直在生长 and they’re still growing in 11th and 12th grade,到十一和十二年级的时候 他们还在长 and then they catch up and surpass their peers.然后他们的身高赶上并超过同龄人 So, it gives you an idea.所以 生长曲线表只是一个参考 It is certainly not the predictor of your child’s long-term length.它当然不能预测孩子今后的身高 Pressman: You’re gonna hear many myths and many things你会听到很多错误观念 很多东西 that are gonna make you question your own parenting.它们会让你质疑自己的育儿方法 What we would emphasize is,我们要强调的是 try to think about your gut, what makes you feel good,想想你的直觉以及让你感觉良好的育儿方式 because a parent who feels good and empowered因为感觉良好 感到自己充满力量的父母 is going to have better interactions with their baby.能更好地和宝宝进行互动 And if you do have any questions,如果你有疑问 rather than thinking about the myths that are out there,与其参考那些错误的观念 seek advice from very reliable and valid resources.不如从可靠而有效的资源那里寻求建议 Go to your pediatrician with any questions你可以问儿科医生任何问题 or find the websites that are actually valid and reliable,或者去寻找有效 可靠的网站 and never do Google searches千万不要去谷歌上随意搜索 arbitrarily or look at chat rooms.也不要去聊天室找答案 Hammond: And, again, pediatricians,还有 我要再说一遍 we go into this field because我们儿科医生进入到这个领域 we like to partner with parents to making sure就是想要和父母一起合作 all children are as healthy as possible.以确保所有孩子都尽可能健康 So bring your questions to the doctor.所以 有问题就问医生吧
  • 2021-08-24植物是什么?You’re watching FreeSchool!你正在观看《基础校园》! Plants are living organisms.植物是有机体 They come in many different shapes, sizes, and colors,它们形状 大小 颜色各异 but they all need air, water, nutrients, and sunlight to live.但它们都需要空气 水 营养和光照才能生存 Plants cover much of our planet.植物覆盖了地球表面的大部分土地 Every blade of grass, tree, flower, bush, fern, or moss you see is a plant.你看到的每一片草 树 花 灌木 蕨类或苔藓都是植物 Large or small不论它们是大是小 on the land or in the sea在陆地还是海里 from forests to deserts从森林到沙漠 plants are almost everywhere植物无处不在 Plants are so important to life on earth植物对地球上的生命非常重要 that without them, we could not survive.没有它们 人类无法生存 Plants create food from the sun’s energy,植物利用太阳能创造食物 and form the foundation of nearly every food chain on the planet并形成地球上几乎所有食物链的基础 . Plants produce the oxygen in the air we breathe, helping animals to stay alive.植物在空气中释放我们呼吸的氧气 帮助动物生存 Plants also create important habitats where animals can live,植物还创造了重要的栖息地供动物居住 and provide humans with many natural resources. 并为人类提供了许多自然资源 So what makes something a plant?是什么使植物如此特殊? Plants are special on the cellular level.植物的细胞结构很特别 They are always made of more than one cell 它们一般由多细胞组成 – meaning there are no single celled plants也就是说 它们不是单细胞植物 – and their cells have specal parts.并且它们的细胞也有特殊之处 One special part of a plant cell is the cell wall.其一是植物细胞有细胞壁 Cell walls are rigid and unbending.细胞壁坚硬且不易弯曲 Since plants do not have skeletons,因为植物没有骨架 these cell walls give them their structure.所以说 这些细胞壁组成了植物的结构 Without cell walls,如果没有细胞壁 tall trees, cactus高大的树木 仙人掌 and even little flowers would not be a ble to stand up!甚至是小小的花朵 都将无法保持直立 Many plants are easy to recognize by their green leaves许多植物的种类只需通过叶子即可辨认 – in fact, most plants are green, 事实上 大部分的植物都是绿色的 or have green parts.或者一部分是绿色的 This green color is caused by another special part of their cells called chloroplasts.它们的绿色是由细胞内另一特殊部位叶绿体造成的 Chloroplasts contain chlorophyll, which is green.叶绿体中含有叶绿素 而叶绿素是绿色的 Chlorophyll is what allows plants to carry out photosynthesis叶绿素使植物能够进行光合作用 and make food from the sun’s energy.通过太阳能来制造它们的食物 During photosynthesis,在光合作用中 plants use the sun’s energy to change water and carbon dioxide植物利用太阳能将水和二氧化碳 into a kind of sugar.转化为一种糖 They use this sugar to grow and develop,植物利用这种糖生长 and store the extra in their leaves, roots, or fruits.并将多余的糖储存在叶片 根茎 或果实中 In addition to sugar, plants produce oxygen during photosynthesis.除了糖 植物还在进行光合作用时产出氧气 Since plants do not need the oxygen,因为植物并不需要氧气 they release it into the atmosphere,于是它们将其释放到大气之中 where animls and people can breathe it in!使得动物和人类能够在空气中呼吸到氧气 Plants cannot move the same way that people or other animals do,植物无法像人类和其他动物那样移动 so they have to have special strategies to solve their problems.因此植物必须用特殊策略来解决这一问题 For example,例如 some plants cannot get enough nutrients from the soil they are growing in.有些植物无法从它们生长的土壤中获取足够的营养 The plants of eastern North American bogs有一种来自北美东部沼泽里的植物 have adapted to their nutrient-poor soils就是通过一种特殊途径—昆虫 by getting extra nutrition from an unusual source – insects.来适应它们营养匮乏的土壤 One of these carnivorous plants, the sundew,有一种食肉植物 茅膏菜 has sticky fluid coating special hairs.它们具有粘性液体涂层的特殊毛发 This fluid has a sweet smell that attracts insects.这种液体有甜味 能够吸引昆虫 When an insect lands on the hair,当昆虫落在茅膏菜的毛发上时 however, it becomes stuck – trapped by the plant昆虫立即被粘住 落入茅膏菜的陷阱之中 and the fluid digests the prey,紧接着 茅膏菜的液体开始消化猎物 breaking it down into nutrients.将其分解成营养物 Another kind of carnivorous plant is the pitcher plant.另一种食肉植物是猪笼草 The ‘pitcher’ of the plant is a modified leaf that is watertight.猪笼草的“捕虫笼”是一种特殊形状的防水叶 The plant fills it with a combination of nectar猪笼草的“捕虫笼”里装有一种混合的花蜜 and digestive juices.和消化剂的液体 The smell of the nectar and colors at the edge of the pitcher花蜜的味道和猪笼草边缘的颜色 attract insects and other small visitors,吸引着昆虫们和其他小型“观光者” but once inside一旦进入“捕虫笼” the prey find it too slippery to get out again猎物将发现由于内壁太滑自己无法再出来 and will fall into the pool at the bottom of the pitcher,它们将跌入猪笼草底部的消化池里 where they are digested.在那里慢慢被消化掉 The most famous carnivorous plant is the Venus Flytrap.最有名的食肉动物是捕蝇草 It has specialized leaves that act like the mouth of the plant.它有特殊化的叶子 看起来就像它的嘴巴 Like the other carnivorous plants,和其他食肉植物类似 its bait is sweetened nectar.它的诱饵也是甜甜的花蜜 Once prey climb onto the leaf,一旦猎物爬到捕蝇草的叶子上 they activate the trigger hairs which signal the plant to close its trap.将会激活触活毛发 向植物发出关闭陷阱的信号 Long guard hairs interlock across the top of the leaves,长长的防御毛在叶子顶部互锁 preventing escape 阻止猎物逃跑 and the prey is slowly digested.随后猎物将被慢慢消化掉 Unlike carnivorous plants, which are predators,不像食肉植物(它们是捕食者) most plants are prey for herbivores. 大部分植物是食草动物的猎物 They have developed strategies to help protect them from being eaten.它们进化出策略来保护自身以防被吃掉 One popular strategy plants like to use植物们喜欢用的一种流行策略是 is to grow thorns, spines, or prickles. 长出刺 棘 皮刺 The cactus is famous for its sharp spines.仙人掌以它的尖刺而闻名 Most cacti live in the desert,大部分仙人掌生长于沙漠中 where water is a scarce and precious resource.在那儿 水是稀缺而又珍贵的资源 Cacti store water in their thick, waxy stems.仙人掌在厚蜡质茎中储存水 To prevent animals from consuming their carefully collected resources为了防止动物消耗它们辛苦收集来的资源 they grow sharp spines 它们长出尖刺 which deter all尖刺阻止了几乎所有动物 but the hungriest or most cautious of animals.除了那些最饥饿或最谨慎的动物 A plant with another interesting defense is the sensitive plant.敏感植物有着一种有趣的防御策略 When its leaves are touched, they close up.每当它的叶子被碰到 它们就会闭合 This makes the leaves look dead, or wilted这让这些植物看起来像死掉或枯萎了一样 and may send a hungry herbivore并且可能会打发那些饥饿的食草动物 searching for a more tasty-looking lunch.转去搜寻看起来更加美味的午餐 Finally, a popular plant defense strategy最后一个流行的防御策略是 is to use chemicals to protect themselves. 使用化学物质进行自我保护 Some plants just use chemicals to give their leaves a bitter taste.一些植物会用化学物质 使它们的叶子有一种苦味 Other plants have chemicals on them that can make us itchy!另一些植物身上的化学物质 能使我们发痒 Still other plants are poisonous,还有些植物是有毒的 making animals that eat them get sick or even die. 能够让这些吃了它们的动物患病甚至死亡 Animals learn not to eat these poisonous plants动物已经学会不去吃这些有毒的植物 and the plants can then grow undisturbed. 这样植物便可以无所顾忌地生长 One more problem that plants have to solve is the problem植物不得不解决的另一个问题是 of how to get their seeds away from them. 如何让种子离开自己 Plants do not want their seeds to grow right next to them,植物不想让种子长在自己旁边 because then they would be competing for the same resources.因为这样它们将为同一资源而竞争 Some plants use the wind to spread their seeds.一些植物利用风来传播种子 Some plants that live near water一些植物生长在靠近水的地方 have seeds that can float, and let the water carry their seeds away.种子可以飘到水里 让水带种子离开 A popular method plants use to spread their seeds有一种 植物传播种子 的流行方式 is to have animals carry them away.是让动物带它们离开 Some seeds, called burs,一些称作刺果的种子 grow with hooks on their outsides.外部长有钩子 These hooks get caught on the fur of passing animals这些钩子会钩在路过的动物的毛发上 and are carried away to new areas.从而被动物们带到新的地方 Other plants grow their seeds inside fruits or berries.还有些植物的种子长在果实或是浆果里 Animals eat the fruit and it is digested,动物吃掉果实 果实被消化 but the seeds pass through unharmed但种子完好地穿过身体 and are dropped far away from the parent plant.然后在远离其母体植物的地方被排出 Still other seeds, like acorns,还有些像橡子类的其他种子 are collected by animals that bury them.被动物收集起来埋掉 Not all of these buried seeds get eaten,埋下的种子并没有被全部吃掉 leaving some to grow into new trees.留下的那些长成了新树木 Some plants, however, take matters into their own hands然而 有些植物靠自己传播种子 or seed pods, that is.就像种子荚 When touched or tapped,当被触碰或是轻拍时 the fruit of the exploding cucumber splits open forcefully, 爆炸瓜的果实激烈爆开 spreading its seeds in one burst.它的种子一下子全部传播开来 On the land or in the sea,无论在陆地上还是在海洋里 plants play a critical role in the continuation of life on earth.植物在地球生命的延续中扮演着重要的角色 They make their own food from sunlight,它们从太阳能中制作自己的食物 converting it to food that animals can use. 又将其转化为动物可食用的食物 Plants produce oxygen for us to breathe植物为我们制造呼吸的氧气 and habitats for animals to live in. 以及供动物生活的栖息地 No matter where they grow,无论生长在哪儿 or what challenges they face,或是遇到什么挑战 plants have learned how to get enough nutrients, 植物已经学会了如何去获取足够的营养 protect themselves from hungry animals,如何远离饥饿的动物 and spread their seeds around. 以及如何广泛传播自己的种子 Plants are incredible!植物真不可思议! I hope this helped you learn more about plants today.希望这能帮助你更好的了解植物 Goodbye till next time!下次再见吧!
  • 2021-08-24我们为什么会停止生长?孩子们生长得很快 但你有没有想过 为什么成年人不继续生长发育? 让我们在今天的节目中一探究竟 巨大的问题 停止生长主要是由DNA决定的 让我来解释一下 每个人都是由一个单独的细胞 分裂 分裂 再分裂数百万次形成的 不知不觉间 这个细胞成为了一个复杂的结构 新生儿到青春期结束这段期间 你会一直发育得很快 直到DNA最终告知身体停止生长 当青春期结束之后 你的身体开始产生大量雌激素 这是一种用来关闭 导致骨骼生长的受体的荷尔蒙 所以这是身体停止生长的原因 但是为什么会这样呢 科学家们并不确定 但他们的确形成了一些理论 你看 长得太高实际上是一个缺点 这给你的骨骼和肌肉增加了很多压力 使你无法直立 行动困难 也会让身体器官运行更加困难 因为心脏需要更努力地跳动 才能让血液在如此庞大的身体内循环 如果我们都一直长成巨人该多有趣 当然 但是我们应该庆幸不会长得那么高 不然将很难存活 现在你知道了人类为什么会停止生长 如果你有其他想了解的问题 请在下方留言 别忘了订阅 以便观看我们的更多节目
  • 2021-08-24地震是什么You’re laughing, right?你是不是在笑? Watching me tumble like that?看到我刚刚摔了一跤? Are you?我没说错吧? Oh! No no, go ahead!噢!没关系 没关系 还是放过你们吧! But hey, do you know what just happened?不过话说回来 你知道刚刚发生了什么吗? There we go again!又来了! Well, this is nothing but an earthquake, a small one indeed.呃 这不过就是一场小地震 Come, let me tell you about Earthquakes today!来吧 今天我们就来聊聊地震 Zoom In!闪亮登场! The surface of the Earth is like a jigsaw puzzle.地球的表面就像一块七巧板一样 Yes, it’s not a single piece of land对哦 它可不只是一块简单的陆地 but approximately 20 pieces of a puzzle that constantly move,而是由大约20块不断移动的“拼图”所构成的 but you don’t feel it because they move quite slowly.但你们感觉不出来 因为这些“拼图”移动的速度很慢 Each of one those puzzle pieces are called ‘Tectonic Plates’.每一块这样的“拼图”就叫做一个“板块” So whenever those plates hit, bump or slide past another plate,所以每当这些板块相互碰撞 颠簸或相对滑动时 an earthquake is caused!地震就发生了! The surface where these plates slip is called the Fault or the Fault plane.这些板块相对滑动的表面就叫“断层” 或者说“断层面” So when do you think it happens?那么你认为地震什么时候会发生呢? Well, it happens all the time!其实啊 每时每刻都在发生! But hey, don’t be scared.不过呢 不用担心 Most of the times, we don’t feel the quakes大多数时候 我们感觉不到地震 as they are too small to reach us.因为它的波及范围太小了 But sometimes, they are so strong不过有时候 震感会很强烈 that they can be felt over 1000 miles away.人们相距1000多英里都能感觉到 The place where the earthquake originates is called the Hypocentre,地震产生的源头叫做“震源” and the place where it occurs on the Earth’s surfac而在地球表面发生地震的地方 is called the Epicenter.就叫作“震中” There are three types of Earthquakes.地震分三种类型 Convergent boundary.首先是“汇聚边界” Here, one plate is forced over another during an earthquake,这种情况下 一个板块在地震时受迫抬高到另一板块上方 which causes a Thrust Fault导致了“逆冲断层”的形成 Many hills and mountains have been formed许多丘陵和山脉 due to the Convergent Boundary.都是由“汇聚边界”形成的 Divergent boundary第二 “离散边界” Here, plates are drifted apart from each other,这种情况下 板块因漂移而相互分离 forming a Rift Zone.形成“断裂带” This kind gives birth to new ocean floors.这就使新的海底得以形成 Transform fault最后一种是“转换断层” Here, the plates here slip by each other这种情况下 板块之间走向滑动 and this is also called Strike-Slip.又叫做“走滑” So earthquakes are nothing but the shaking,总之 地震不过只是抖动 rolling or a sudden shock of the earth’s surface.晃动或者说地表的突然震动 Now you know that whenever the Earth is stressed or angry,现在你们知道了 一旦地球压力太大或者是生气了 it shakes and grumbles!它就不停地摇晃 发一发牢骚! Don’t be scared, I was just kidding别害怕嘛 我就是开个玩笑 冷知识揭秘! The instrument used by Scientists to measure the intensity of Earthquake科学家们用一种仪器来测量地震的强度 is known as a Seismograph!这就是大家熟知的“地震仪”! A Tsunami is caused when earthquakes occur under water.当海底发生地震时 还会导致“海啸” Yikes! I need to rush before I tumble again.哎呀!我得赶紧跑了 不然又要摔跤了 So this is me Zooming out.好了 我要霸气退场了 Tune in next time for more fun facts.想看更多有趣的知识 下期我们不见不散
  • 2021-08-24谁发明的炸薯条我们都已吃完自己那份薯条 但你可曾想过 究竟是谁发明了我们最爱的油炸小吃 让我们在这期《大问题》中寻找答案 鉴于美国人将薯条称为法国炸薯条 你可能认为薯条是源于法国 但这种说法仍富有争议 法国人坚称是他们发明了这道美味 而作为现代薯条的发明人 比利时人似乎有更好一些的说法 回到1830年代 炸土豆当时在比利时和法国受到大众喜爱 英国直到1894年才首次提到炸薯条 他们称之为法国炸土豆 但据比利时人的说法 薯条的故事还不止于此 贫穷的比利时村民常常捉到些小鱼 并油炸食用 冬天 湖河结冰 村民被迫寻找其它食物 这时 薯条再次出现 他们将土豆切成平时捉到小鱼的大小 然后 下锅油炸 美味薯条就成了 好了 现代薯条很可能就是这样来的 但之后它又是如何流行起来的呢 薯条真正流行起来 是在一战中驻比利时的士兵品尝之后 士兵们喜欢这种油炸食品 它变得非常流行 法语是比利时军队的官方语言 所以士兵们就把他们的食物新宠 称作法国炸薯条 这名字就此产生 薯条是世界上最受欢迎的食物 因此 会受所在地域影响 搭配上各种不同的调料浇头 在美国 番茄酱 炼乳 醋都是常见蘸料 智利辣酱是常见浇汁 但在加拿大 多数人用奶酪肉汁作浇头 叫它poutine 在英格兰 薯条又叫chips 并组成了另一英国名菜–炸鱼薯条 在法国 薯条的流行吃法 是搭配牛排或酱肉 这才只是个开始 因为世界各国都找到了合适的薯条吃法 并佐以地方风味 这倒让我想挨个尝尝 现在你知道是谁发明了薯条 如有问题 请在下面留言 记住订阅《大问题》获取更多视频 《电视梦工厂》独家播放 《电视梦工厂》
  • 2021-08-24什么导致了患红眼病?嗨 朋友们 在我们开始今天的节目之前 我有一个很重要的信息要与你分享 你一定注意到了 由于新的平台规则 你无法在视频下方评论 但是不用担心 朋友们 你仍然可以通过邮箱peekabookidzfeedback@gmail.com 分享宝贵的反馈意见和喜爱 你同样可以关注我们的instagram和facebook账号 继续参与我们的节目 我们期待收到你的邮件 小猫咪 眼镜很酷嘛 天呐 不会吧 小猫咪你好像得了结膜炎 麻烦你还是带上眼镜吧 朋友们 正好你们在观看视频 你们一定也看到了 小猫咪得了结膜炎 结膜炎是什么呢? 好吧 在今天的节目里 让我们一起深入了解 关于这个常见的儿童疾病的知识 并且回答一个很重要的问题 是什么导致了结膜炎? 变大! 一天早上 你醒来 感觉到你的眼皮黏在一起了 你走到镜子前 感觉眼睛痒痒的 你就使劲揉眼睛 然后发现你的眼睛变得又红又肿 你很害怕 不知道这是怎么回事 好吧 朋友们 不用太害怕 因为你患上的是很常见的儿童疾病 结膜炎 通常被称为红眼病 结膜炎 是一种很常见的疾病 它导致眼睛里的薄膜 发炎 肿胀 充血 继而眼睛里分泌一种透明或白色的 黄色或黄绿色的粘液 导致红眼病的原因有很多 比如过敏 或者某些化学成分 但是更多小朋友是被一些可恨的病毒 和细菌传染的 但关键问题是 什么导致了红眼病 好吧 在我们了解之前 首先 我们再来仔细看看 眼球表面很重要的一层薄膜 结膜 请看投影仪 这是眼睛的解剖图 而结膜是一层透明薄膜 覆盖在眼睛前表面 以及眼睑的内表面 其主要功能是使眼球的前表面 保持湿润与润滑 同时保护眼镜防止粉尘 灰尘和易引起感染的微生物的侵入 结膜上还有很多细小的血管 为眼球和眼皮提供营养 但是如果一些有害的病毒进入眼睛 比如引起感冒的病毒 将会引起结膜发炎和感染 最终会导致结膜炎 同时也会使 结膜上的毛细血管扩张 从而让你的白眼球 看起来是红色或粉红色 还要注意 尽管结膜炎不是致命的疾病 而且几天之后就可以康复 但它具有很高的传染性 是的 朋友们 如果一个被感染的人触摸了自己的眼睛 然后 无意中接触了你的手 你又触摸了自己的眼睛 这个传染病就传染给了你 咳嗽 打喷嚏也是可能传播感染途径 通过这些途径 结膜炎将会在你的朋友之间传播 因此 如果一个人感染了红眼病 就不要去学校了 呆在家里一段时间 防止结膜炎传染给他人 如果你接触过被感染的传播者 用温和的肥皂水勤洗手 以防感染 冷知识时间 你知道吗 结膜炎的治疗方案 与你感染的是细菌 病毒 还是环境因素造成的有关 是的 细菌感染的红眼病 用抗生素软膏或者滴眼液 就可以消除炎症 但如果是病毒引起的红眼病 很不幸 你只能对症下药 一些方法可以缓解病毒性结膜炎的症状 如滴眼液 热敷或者冷敷 但是也要告诉父母 监护人 但最重要的是咨询医生 在这之前 最好不要对眼睛采取任何措施 因为它可能非常敏感 希望你们喜欢今天的节目 下次见 我是望远镜博士 变小! 呃 没关系 嗨 孩子们 喜欢看我的节目吗? 在关闭视频之前 不要忘记点击订阅按钮和消息通知 这样你就不会错过我们下期短视频啦 哈哈哈 下次见
  • 2021-08-24汽水是谁发明的?-[Narrator] It’s cold, bubbly, crisp,它冰凉 多泡 清新 and we drink a ton of it!我们喝了很多很多! So, who actually invented soda pop in the first place?那么 是谁最先发明汽水的呢? Let’s found out on today’s episode of … – [Announcer] Colossal Questions!就让我们在本期的《奇葩问》里找出答案吧 – [Narrator] To find out who first invented soda,为了找出谁先发明的汽水 we need to flash back to England in the year 1767,我们需要回到1767年的英国 where a scientist named Joseph Priestley有一个叫约瑟夫•普利斯特利的科学家 first discovered a method for creating carbonated water.首先找到了制作碳酸水的方法 He loved the taste of his new bubbly drink他很喜欢他的新气泡水的味道 and at first just shared it with family最初他只是跟家人 and friends who came to visit.和来拜访的朋友分享 But, in 1772, Priestly published a paper但在1772年 他发表了一篇论文 called Impregnating Water with Fixed Air,论文名为《水与气之结合》 where he laid out his process for the masses.在论文中 他把制作过程分享给群众 One of the people who read his paper was John Mervin Nooth,一个叫约翰•默文•努斯读的人读了他的论文 who improved on Priestley’s design将设计改良了 and sold it commercially to pharmacies.并且把它卖给了药店 Why pharmacies instead of convenience stores?为什么是药店而不是便利店呢? Well, in those days, mineral water was considered a health drink在那段时间 矿泉水被认为是健康饮料 kind of like the smoothies of their day.有点儿像他们日常生活中的冰沙 Eventually, pharmacies started adding最后 药房开始添加 different herbs and chemicals to improve the flavor:不同的草药和化学物去改善口味: ginger, birch bark, dandelion, sarsaparilla,生姜 桦树皮 蒲公英 洋菝契 fruit extracts, and all sorts of other things.水果萃取物和各种各样的其他东西 People loved these new fizzy drinks,人们喜欢这种新汽水 and soda quickly grew in popularity.汽水很快就流行了起来 But there was one huge problem但这时 出现了一个巨大的问题 that was keeping soda from being mass-produced.使汽水无法大规模生产 They didn’t have a good way to seal the glass bottles shut.他们没有办法严密地密封玻璃瓶 Inventors tried for years to devise ways发明家用了很多年去设计方法 to trap the carbonation inside without letting the gas leak防止碳酸化作用产生的气体跑掉 and not pressurizing bottles too much that they exploded.并同时避免瓶子因压力太大而爆炸 It took them years and dozens of different designs,他们为此花费多年的时间 尝试了大量的方案 but eventually the crown cork bottle seal最终 冠状瓶盖密封 was invented by a machine shop owner in Baltimore.被一个巴尔的摩市的机械修理厂老板发明了 This was the first cap to successfully trap the bubbles inside,这是第一个能成功地密封住气泡的瓶盖 and we still use it today.直到现在我们仍然在使用它 Now with a spiffy new cap, sales of bottle soda took off!随着这个出色的新瓶盖 汽水的销量起飞了! Vending machines were invented in the 1920s,自动售货机发明于在20世纪20年代 and the soda can came along in the ’30s,而汽水出现在20世纪30年代 which gave customers even more ways to find it.这使得顾客有更多方式能买到汽水 So, who invented soda?所以 谁发明了汽水呢? Well, no one person invented that fizzy drink alone,汽水不是一个人独自发明的 but Joseph Priestley and his bubbles got the party started,但约瑟夫·普利斯特利和他的气泡是发明的起点 so thanks for that!感谢他们吧! and now you know where soda came from?现在你知道汽水是怎么来的吗? coming below if you have a question you’d like to know the anawer to如果你有问题请在下方留言 and don’t forget to subscribe for more episodes of colossal questions想看更多有趣内容 不要忘记订阅《奇葩问》 only on dream works TV本片由梦工厂TV 独家播出

译学馆所有视频和图片来自互联网版权归原创者所有。