Foucault's gyroscope demonstration apparatus, 1883.
3 3 c m
actual image size: 32cm x 25cm

Foucault's gyroscope demonstration apparatus, 1883.

© Science Museum / Science & Society Picture Library


Part of the demonstration apparatus made by Dumoulin- Froment, Paris, that was used at the South Kensington Museums to demonstrate the principles of Foucault's gyroscope from the late nineteenth century. In 1852, the French physicist Jean Bernard Leon Foucault (1819-1868) had given the first public demonstration of the rotation of the earth on its axis.The complete demonstration apparatus comprises: tripod stand, 17.5 inches high with suspended circle; gyroscope spinning mechanism; two gyroscopes; a small stand with scale; and a mahogany stand for adjusting the gyroscope.

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