Child like curiosity is the best ! Its even better when the "big brains" give it a serious thought and get the answers. Here's a cool one : Why doesnt paper ( or any flat, thin thing) fall straight down ?
What d'ya know ! Cornell gets the answer :
While college students suspect the answer is known to lazy professors -- the ones who allegedly grade essays by throwing them down stairwells to see which sails the farthest -- the so-called falling paper problem has long intrigued scientists.
As Wang explains, "Leaves and paper fall and rise in a seeming chaotic manner. As they fall, air swirls up around their edges, which makes them flutter and tumble. Because the flow changes dramatically around the sharp edges of leaves and paper, known as flow singularity, it makes the prediction of the falling trajectory a challenge."
Im sure we being engineers were on the right track guessing the answer to this ( atleast I was ) but to put it in words *sensibly* is always tough :p
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