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Bolometer

Image of spiderweb bolometer for measurements of the cosmic microwave background radiation.
Spiderweb bolometer for measurements of the cosmic microwave background radiation. Image credit: NASA/JPL-Caltech.

A bolometer is a device for measuring radiant heat by means of a material having a temperature-dependent electrical resistance.[1][2] It was invented in 1878 by the American astronomer Samuel Pierpont Langley.

  1. ^ "Langley's Bolometer, 1880-1890". Science Museum Group. Retrieved 20 March 2022.
  2. ^ See, for example, bolometers – Definition from the Merriam-Webster Online Dictionary
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