Langley's 'Great' Bolometer, 1880-1890

Made:: 1880-1890 in Allegheny City

inventor:: Samuel Pierpont Langley Samuel Pierpont Langley

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SMG00051833
Science Museum Group
© The Board of Trustees of the Science Museum

'Great' bolometer, for detecting and measuring radiant heat, invented and made by S. P. Langley, 1880-90, and used by him at Allegheny Observatory, Pennsylvania, United States.

Details

Category:: Heat

Object Number:: 1890-39

Materials:: wood (unidentified), platinum (metal), brass (copper, zinc alloy) and plastic (possibly vulcanite)

Measurements:: overall: 115 mm x x , 180 mm, 2.795kg

type:: bolometer and measuring device (radiant energy)

credit:: Professor S. P. Langley

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