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An radiometer The Savoy theatre titled 'A Sense of History'

SKU 1912819085
4.2
An radiometer The Savoy theatre titled 'A Sense of History'
An radiometer The Savoy theatre titled 'A Sense of History'
An radiometer The Savoy theatre titled 'A Sense of History'
An radiometer The Savoy theatre titled 'A Sense of History'
Description

titled 'A Sense of History'

Portsmouth Street

28th June 1990

music group

An radiometer The Savoy theatre titled 'A Sense of History'A radiometer with aluminium vanes. An instrument designed for measuring the mechanical effect of radiant energy. Mounted in a partial vacuum, the central rotor spins when the vanes are exposed to light. Chemist William Crookes (1832 1919) initially believed the vanes with black surfaces were pushed around by pressure from light radiation. This was incorrect and other theories were put forward. It was not until 1879 that Osborne Reynolds suggested the

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