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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

radiometer

Radiometer with sloping vanes

1800-1899

Stratospheric and Mesospheric sounder experiment, 1976-78

1976-1978

Callendar's Original Radio Balance, 1905-1906

1905-1906

Original Cup Radio-Balance by H. L. Callendar, 1910

1910

Eight vane radiometer, 1800-1899

1800-1899

Longwave radiometer

1923

Radiometer for taking solar radiation measurements, used on 1953 Mount Everest expedition

1952-3
Radiometer on stand; etched on glass "No 1327 Dec. 1877 Ag. Vanes"

Crookes' radiometer

1877
Folder originally containing test pastiles measuring X-radiation; English and French instructions, comparison tints; all pastilles used.

Sabouraud & Noire Radiometer X

Crookes-type radiometer with two circle-shaped vanes contained in a spherical-shaped glass bulb. Mounted on circular dark wooden stand.

radiometer

Nimbus 6 radiometer (engineering model) plus electronic test rack, Marconi, England, 1973-1975.

Nimbus 6, Pressure Modulation Radiometer, 1973-1975

1973-1975
Nimbus 4 Radiometer, optics housing plus electronics module (flight space), 1968-1970

Selective Chopping Radiometer, 1968-1970

1968-1970
Crookes-type radiometer. Contains two vanes of a rectangular shape contained in a spherical-shaped glass bulb. Mounted on circular dark wooden stand which has a crack in it.

radiometer

Crookes-type radiometer with spiral-shaped vane contained in a cylindrical shaped glass bulb. Mounted on circular dark wooden stand.

radiometer

Crookes-type radiometer with two circle-shaped vane and two half-moon shaped vanes contained in a spherical-shaped glass bulb. Mounted on circular wooden stand.

radiometer

Holzknecht chromoradiometer, for measuring radiotherapeutic doses, probably German manufacture, 1905-1930.

Holzknecht chromoradiometer

1905
Meteosat radiometer development model, with stand, European, 1975-1977.

Meteostat Radiometer Development Model, 1975-77

1975-1977