We think that grass is green, that stones are hard, and that snow is cold. But physics assures us that the greenness of grass, the hardness of stones, and the coldness of snow are not the greenness of grass, the hardness of stones, and the coldness of snow that we know in our own experience, but something very different.
Monday, January 23, 2012
When Physics is Poetry
From Bertrand Russell:
Monday, January 2, 2012
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