Radiometer with cup-shaped vanes
1800-1899
Radiometer with aluminium vanes
1800-1899
Radiometer with aluminium vanes and movable screens of clear mica
1800-1899
radiometer
Along Track Scanning Radiometer
1995
Callendar's Disc 'Radio-Balance', 1905-1920
1905 (invented); 1907-1920
Crookes Radiometer to Illustrate his research, 1872-1879
1872-1879
Crookes Radiometer, 1876-1895
1876-1895
Radio Wavemeter
1919
Stratospheric and Mesospheric sounder experiment, 1976-78
1976-1978
Radiometer with sloping vanes
1800-1899
Longwave radiometer
1923
Callendar's Original Radio Balance, 1905-1906
1905-1906
Original Cup Radio-Balance by H. L. Callendar, 1910
1910
Radiometer for taking solar radiation measurements, used on 1953 Mount Everest expedition
1952-3
Eight vane radiometer, 1800-1899
1800-1899
Crookes' radiometer
1877
radiometer
Sabouraud & Noire Radiometer X
Nimbus 6, Pressure Modulation Radiometer, 1973-1975
1973-1975
Selective Chopping Radiometer, 1968-1970
1968-1970
radiometer
radiometer
radiometer
Holzknecht chromoradiometer
1905
Meteostat Radiometer Development Model, 1975-77
1975-1977