Can Oxygen Be Toxic?氧气有毒吗？ In order for us to live we must have oxygen, so how can it be bad for us? Today we explain how oxygen can be toxic. 氧气是我们生存所必需的，所以它怎么会对我们有害呢？今天我们来解释为

发表于:2018-12-28 / 阅读(208) / 评论(0)

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英文书摘精选零重力,是否真的存在?

Zero Gravity, Does It Exist? 零重力，是否真的存在？ This Moment of Science: Is there such a thing a zero gravity? 本期科学一刻：是否真的存在零重力？ No Zero Gravity 零重力，无稽之谈 Contrary to popular belief, ther

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英文书摘精选科学家深度研究恐龙巢穴

Scientists Are Learning So Much About Dinosaur Nests 科学家深度研究恐龙巢穴 Tons of dinosaur fossils have been unearthed over the last hundred years. These long-buried bones tell us about the physical build and eating habits of dinosaurs.

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英文书摘精选心脏正确的位置

Are You Sure Your Hearts In The Right Place?你能确定自己的心脏是在正确的位置上么？ On todays Moment of Science, were sure your hearts in the right place. But where is it exactly?!? CPR classes show how to press on the sternum, in t

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英文书摘精选为什么昆虫的血是绿色的或是黄色的?

Why Is Insect Blood Green Or Yellow?为什么昆虫的血是绿色的或是黄色的? Youve probably heard someone use the phrase blood red, but have you ever wondered if all blood really is red? For example, think about the bugs youve seen splatter

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英文书摘精选气候变暖可能有助于企鹅生存

Climate Change May Actually Help Penguins 气候变暖可能有助于企鹅生存 Its time to go again to the A Moment of Science mailbag. A listener writes: Dear A Moment of Science,I know that climate change is making life difficult for polar bears

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英文书摘精选有名的西红柿辩论

The Great Tomato Debate 有名的西红柿辩论 In 1893, the U.S. Supreme Court heard a case that hinged on whether the tomato was a fruit or a vegetable. 1893年，美国最高法院有一场关于西红柿到底是水果还是蔬菜的案子。 De

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英文书摘精选吃坚果有益于你的心脏

Nuts, Nuts, Good for Your Heart 吃坚果有益于你的心脏 Todays program starts with a word association game. What comes to mind when you hear these words: almonds, walnuts, cashews, pistachios. Are you thinking scrumptious and satisfying? Or un

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英文书摘精选无糖汽水会使人沮丧吗?

Does Diet Soda Cause Depression? 无糖汽水会使人沮丧吗？ Its time to go again to the A Moment of Science mailbag. A listener writes: 又到了抽取《科学一刻》信箱来信的时间了。一位听众这样写到： Dear A Moment of Sc

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英文书摘精选是什么让狗狗拥有极好的嗅觉呢?

What Makes Dogs Such Great Sniffers?是什么让狗狗拥有极好的嗅觉呢？ Watch a dog greeting the world with its nose, or following invisible trails of scent, and you might wonder what youre missing. In one study, dogs were able to smell a p

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英文书摘精选 The Science Of Acne粉刺的学问

Acne: the scourge of adolescence. Most people endure it at some point, and cant wait to be rid of the combination of whiteheads, blackheads, pimples, and pustules that comprise the skin condition that affects over 80% of teenagers and nearly 20% of a

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英文书摘精选 Ben Franklin Did Not Get Struck By Lightning本.富兰克林没有被雷击

Did Ben Franklin really discover electricity with a kite? 本.富兰克林真的靠一只风筝发现了电吗？ Everybody has heard the famous story of how pioneering experimenterand part-time founding fatherBen Franklin tied a key to a kite string

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英文书摘精选 Why Am I Still Hungry?为什么我还饿呢?

Youve just snacked on rice cakes. Why are you still hungry? That yummy feeling of being pleasantly full depends partly on the weight and volume of what you eat. As the stomach churns away at a large enough weight and volume of food, you start feeling

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英文书摘精选 Why Was Greenwich Standard Time Created?为什么要确立格林威治标准时间?

Imagine getting on a train at twelve noon and heading out on a four-hour trip to another town. 设想一下：您正乘坐一辆中午12点整出发的火车前往另外一个城市，路途耗费4个小时。 Youd expect to arrive at four oclock in

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英文书摘精选 Why Does Crying Make Your Nose Run?哭的时候为什么会流鼻涕?

Why Does Crying Make Your Nose Run?哭的时候为什么会流鼻涕? When you burst out crying, you expect the bleary red eyes and the rivers of tears that stream down your cheeks. But on top of all that, your nose starts to run like a faucet. Why d

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英文书摘精选 What Makes White Gold White?白金为何是白色的?

Many people associate the metal gold with the color gold. But, some gold jewelry is not golden at all: its white. 很多人都认为金子就应该是金色。但一些黄金首饰的颜色并不是金色，而是白色。 Golden Color 金色 Gold is

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英文书摘精选 Is There Life On Other Planets?外星球上有生命吗?

Weve all been hearing about ongoing Mars exploration, and how water probably used to be abundant there. And a water spewing volcano was recently discovered on a small moon orbiting Saturn. Water is one sign that life may exist or have existed at some

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英文书摘精选 Do We Only Use 10% Of Our Brains?我们只使用了大脑的百分之十吗?

Have you ever heard that we humans use only ten percent of our brains? This oft-quoted myth holds a certain appeal because if it were true, then we could instantly become ten times more intelligent just by firing up that sleepy majority of the brain!

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英文书摘精选 Cilantro:Love It Or Hate It?香菜:爱它还是恨它?

On todays Moment of Science, well be sniffing our way through a controversial culinary conundrum: the great cilantro debate. 今天的《科学一刻》栏目，我们将来探讨一个有争议性的烹饪难题：关于香菜的大辩论。 Accordi

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英文书摘精选为什么指甲擦过黑板的声音让人讨厌?

Well be kindwe wont use any sound effects on todays program. Instead, imagine your eighth-grade classroom, and your childhood nemesis creeping quietly to the chalkboard. He shapes his hand like a claw, grins evilly, and slowly, torturously, drags his

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