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You know the old Hughes Mearns poem, "As I was going up the stair, I met a man who wasn't there ..."Astronomers study objects we assume are really there. But sometimes they're not. A few months ago we mentioned rainbows, which stirred some controversy. Are they there? Sort of. A rainbow is nothing but a group of light rays converging on your eyes. It has no solidity. It cannot cast a shadow. But i...
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May 2006: Interactions between Earth and the cosmos are continuous. In fact, everything is so interconnected, the links so intimate, that the universe's emissaries pay continuous courtesy calls on our bodies. By
Bob Berman //
Published: May 1, 2006 |
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