US$ 102.50
British Ski Team
Ken McNaught
Interior view of the Compton Oak Room
as they appeared at the Theatre Royal
International Friendly match at Wembley Stadium
An radiometer Finish:10-pack British Ski TeamA 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
US$ 102.50
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