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Judea Pearl: Jews of Discomfort


By Judea Pearl

URL: http://www.jewishjournal.com/judea_pearl/article/judea_pearl_jews_of_discomfort_20100727/

What makes fog float in midair, while raindrops fall straight down to earth? Physics teaches us that it is all a matter of “surface-to-weight ratio” — a simple parameter that determines whether soap bubbles rise or fall and how many passengers a jet plane can carry. The larger the surface, so the theory goes, the easier it is for an object to lift its weight against gravitational pull.

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