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Dust devils produce magnetic fields
Scientists who chase dust devils report that the tiny twisters can produce a small magnetic field that changes magnitude between 3 and 30 times per second.
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19214
Your article refers to “the current theory that high intelligence arises from the coating of brain cells with especially large amounts of the fatty substance called myelin.” As a person with multiple sclerosis, anything about myelin interests me greatly, yet I have never heard of this. Marion Leeds Carroll Arlington, Mass. For more, see Daniele […]
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Essence of g
New efforts to probe the biology of intelligence stir up a long-running controversy over what mental tests actually measure.
