Publisher description for The man who proved the earth rotates : the life and science of L‚eon Foucault : photographer, physicist, journalist, and astronomer / William Tobin.

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Counter Le;on Foucault's name is synonymous with his famous pendulum experiment, which proved to all that the Earth rotated. This illustrated biography traces the life and achievements of one of the last great amateur scientists. His contributions to science went well beyond his pendulum--the gyroscope; laboratory measurements of the speed of light; and the invention of methods to make perfect optical surfaces.

Library of Congress subject headings for this publication: Foucault, Leon, 1819-1868 Juvenile literature, Pendulum Juvenile literature, Physicists France Biography Juvenile literature