Radiometers and otheoscopes Finish:Single 'Temple Bar from the Strand'

'Temple Bar from the Strand'

Lancia Flaminia

Found in the collection of the Toledo Museum of Art

'Buy any Wax or Wafers'

Radiometers and otheoscopes Finish:Single 'Temple Bar from the Strand'Radiometers and otheoscopes, instruments 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 correct