Tsunamis are powerful waves caused by underwater earthquakes or eruptions that can crashover ten stories tall into a coastline. 海啸是由海底的地震或者火山喷发引起的足以把一个十层高楼淹没的强大海浪。 If you were sail...
Are aliens going to eat us? 外星人会来吃我们吗？ That's more of a science fiction question. 这更像是科幻小说里的才会出现的问题。 But science does havesomething to say here, and sometimes purely imaginativequestions are gre...
Scientists who study human sperm have long wonderedwhether human sperm could somehow sense the presence of an egg. 研究人类精子的科学家们长期以来都很疑惑：精子是否能以某种方式察觉到卵子的存在。 Then, just about...
A major reason why many cancers are so dangerous is thatthey metastasize. 癌症的危险因素主要在于癌细胞转移。 This means that instead of staying in oneplace, the cancer cells migrate from their original site to otherparts of the body....
Humans may be one of the smartest animals on the planet, butwhen it comes to remembering where things are, Clark'snutcrackers have us beat. 人类也许是世界上最聪明的动物之一，但说到记忆，克拉克的星鸟比我们人类强多了。...
In 1859, an unassuming Australian landowner named Thomas Austin got the hunting bug. 1959年，澳大利亚一位默默无名的地主Thomas Austin在打猎上碰到了瓶颈。 Eager for something to shoot, he released twenty-four wild rabbits onto...
Hybrid cars are known as hybrids because they use anelectric motor to augment the performance of a small, efficientgasoline engine. 混合动力汽车简称hybrids，因为这类汽车采用电动马达增加小而高效的燃气发动机动力。 Bu...
For those of us lucky enough to always have enough food andwater, it may be hard to imagine living through a drought. 对于我们这些足够幸运能够有充足的食物和充沛的水资源的人来说，干旱是无法想象的。 A drought occu...
Here's a simple demonstration you can do with cool implications. 告诉你一个很简单的论证：通过它你可以得出很酷的答案。 Find a large object that isbrightly coloredlet's make it a green door. 找到一个大的颜色鲜艳的物件...
Any list of the world's top ten most famous paintings will surely include da Vinci's Mona Lisa. 在任何世界名画前十名的列表中，一定都会有达芬奇的蒙娜丽莎。 Part of the painting's appeal is its mystery. 其吸引力部分来自...
