文章列表

• 1.【英语时差8,16】哪一个先落地？（下）
• Why not? You cry.Well,ask yourself this question: which one is easier to move in the first place? The golf ball. So it takes more force to move the bo...
• 2.【英语时差8,16】哪一个先落地？（上）
• Heres a physics classic. Suppose you drop a golf ball and a bowling ball from the Empire State Building. Which hits first? Answer? They hit at the sam...
• 3.【英语时差8,16】寒冷的脚和温暖的翅膀（下）
• Finally, it can sit down and cover all the bases. Many birds are able to control the amount of blood flow through their legs, which increases their ab...
• 4.【英语时差8,16】寒冷的脚和温暖的翅膀（上）
• Most birds you see standing on only one leg are doing an impressive balancing act while tucking the second leg into their feathers. This is much easie...
• 5.【英语时差8,16】自杀性生存策略（下）
• You might wonder about the chemicals other function thoughto attract more pike. A minnows skin is most likely to be damaged in an attack from a relati...
• 6.【英语时差8,16】自杀性生存策略（上）
• Beneath the surface of a pond or stream its a fish-eat-fish world, and the tiny minnow is often lunch for larger fish such as pike. Youd think a tasty...
• 7.【英语时差8,16】测谎器（下）
• In theory, if a subject lies on an important question, his polygraph response will be different from the truthful responses to the neutral questions. ...
• 8.【英语时差8,16】测谎器（上）
• In an ideal world, a lie detector machine would measure some involuntary response which everyone has when they lie, but not when they tell the truth. ...
• 9.【英语时差8,16】青春痘Vs毛茸脸（下）
• The big culprit on faces, though, isnt dirt so much as an internally-produced substance called sebum that makes the skin cells shed inside the pores. ...
• 10.【英语时差8,16】彗星研究者（上）
• Heres a great story of someone using their noggin to figure out something about nature. For a long time people have been fascinated by comets passing ...