Crookes' Radiometer, 1872-1879

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Radiometer used to illustrate Sir William Crookes' researches on the radiation of heat in high vacua: contains pith bar with mirror attached in vacuo (blackened end is repelled when flame is brought near), 1872-79.

Details

Category:
Heat
Object Number:
1888-166/11
Materials:
glass, bone, ivory, fibre (thread), metal (unknown) and copper (metal)
Measurements:
tube: 500 mm x x , 100 mm, .18kg
type:
radiometer (crookes' type) and laboratory equipment (physics)
credit:
Sir William Crookes