文章列表

• 1.时差N小时 路时为什么要甩胳膊?(下)
• But although it happens passively, arm swinging plays an important role in making your stride more efficient. It does this by counterbalancing your to...
• 2.时差N小时 路时为什么要甩胳膊?(上)
• Have you ever wondered why we swing our arms while walking? Its a curious phenomenon, since arms dont play an obvious role in locomotion. You can stil...
• 3.时差N小时 蓝鲸是天生的歌唱家(下)
• Wow! That is nearly ten times greater than the difference observed in the whales. Pretty amazing, right? But, why are they such pitch perfectionists? ...
• 4.时差N小时 蓝鲸是天生的歌唱家(上)
• Did you know that blue whales sing their songs exactly on pitch, with unbelievable accuracy? Scientists at San Francisco State University analyzed ove...
• 5.时差N小时 外婆担心外孙被宠坏(下)
• Dear Grandma: 祖母你好： Your daughter's parenting skills could use some improvement, and yes, it's possible those kids will grow up to be overweight,...
• 6.时差N小时 外婆担心外孙被宠坏(上)
• Dear Annie: Annie你好: My daughter allows her 8-year-old son to stay up late at night, watch adult TV and eat lots of sweets. She strongly resents any...
• 7.时差N小时 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...
• 8.时差N小时 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...
• 9.时差N小时 洗手的重要性
• D: Today, it's time once again for another Gross Fact of the Month. 今天再来谈下另一个令人厌烦的话题。 Y: Uh oh! I hope no one's eating! 我希望没人在...
• 10.时差N小时 蚂蚁感染真菌变"僵尸“(下)
• Experiments have shown that if infected ants are moved from those locations, the fungus won't develop. Once in ideal locations, the ants bite down on ...