Helen Hansma

Dec. 07, 2007

Did Life Start in Mica?

A biophysicist discusses her hypothesis that in the early days of Earth, organic compounds needed for life may have been synthesized in the tiny spaces between sheets of mica rock.

life, urey, primordial soup, biochemistry

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Michael Pollan Talks Plants and Food

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In his latest book, neurologist Oliver Sacks explores the strange world of hallucinations, and documents his own experiments with psychedelic drugs.

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