文章列表

• 1.【英语时差8,16】直谈茶
• Which has more caffeine, coffee or tea? Ask this at a party and then watch the sparks fly. Everybody, it seems, has a definitive answer that is a litt...
• 2.【英语时差8,16】碳，氧，氢（下）
• Thats because when carbon and oxygen merge to form carbon dioxide, for example, they give off energy. If the merging process is very slowsay in a deca...
• 3.【英语时差8,16】碳，氧，氢（上）
• Robert Frost once wrote a poem about coming across an old woodpile in the forest. In describing it he refers to the slow, smokeless burning of decay. ...
• 4.【英语时差8,16】鱿鱼之嘴
• Ya?l: I've got a good trivia question for you, Don. Don: OK, Ya?l. Y: What animal's beak is one of the hardest known organic substances? D: Umm . . . ...
• 5.【英语时差8,16】世界最高峰（下）
• The answer is: gravity. Gravity sets an upper limit on how high a mountain can be. Heres why. Imagine you are the base of a mountain and you are holdi...
• 6.【英语时差8,16】隐形人同样无法看到你2
• On a previous Moment of Science we discussed one of the problems with turning yourself invisible. Sure, it sounds like fun. But a little physics showe...
• 7.【英语时差8,16】隐形人同样无法看到你
• At some point in our childhoods it dawns on us how incredibly great it would be to turn invisible. Just imagine all the places you could sneak into! T...
• 8.【英语时差8,16】进步探索长寿之谜
• Lot's of people want to live longer, and in this Moment of Science Don and Yael discuss some research that gives new insights into longevity. D: You k...
• 9.【英语时差8,16】关爱延寿
• Don: Time once again for Surprise Finding. This is where we report on some experiment where you think you know the outcome, but then mother nature sur...
• 10.【英语时差8,16】希腊人最先发现地球是圆的（上）
• The ancient Greeks knew a thing or two. Nowadays we say Copernicus discovered the earth was round, for example, but the Greeks had that figured out al...