Wow! That is nearly ten times greater than the difference observed in the whales. Pretty amazing, right? But, why are they such pitch perfectionists? Well, one hypothesis has to do with the Doppler shift. Really? You mean the acoustic effect that mak...
Did you know that blue whales sing their songs exactly on pitch, with unbelievable accuracy? Scientists at San Francisco State University analyzed over 4,000 blue whale songs off the coast of California. They found that all the whales produced a cert...
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, undereducated crooks, but she needs to see it for herself. Your daughter knows you disapprove...
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 suggestion that this is not a good thing. 我女儿允许她8岁的儿子熬夜到很晚，看成人...
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 bowling ball. And the bowling ball is also the one gravity pulls on more. See the connection? A more m...
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 same time. You could also have used a marble and a piano and a banana, or any two objects for which air...
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! 我希望没人在吃饭。 D: Okay, ready? In a recent study of people passing through major U....
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 the leaf's vein and the fungus grows hypha, or fungal threads, throughout their bodies. That sounds...
Scientists have found zombie ants in the Brazilian rainforests. How can that be? The ants are infected by a fungus. As a matter of fact, scientists have just found four new species of the zombie creating fungus, Ophiocordyceps. You are telling me the...
Yael: Today, we're talking penguin eggs. 今天，我们来谈下企鹅的蛋。 Don: Why? 为什么？ Y: Penguins lay their eggs on hard surfaces near coastlines, or they might dig burrows if the soil permits. And because they're optimized for swim...
