Editing Samuel Langley (section)

==Bolometer==
{{Main|Bolometer}}
In 1880 Langley invented the [[bolometer]], an instrument initially used for measuring far infrared radiation.<ref>{{cite journal |last=Langley |first=S. P. |title=The bolometer |journal=Proceedings of the American Metrological Society|volume=2 |date=1880 |pages=184–190 |url=https://babel.hathitrust.org/cgi/pt?id=nyp.33433090766035;view=1up;seq=283 }}</ref> The bolometer has enabled scientists to detect a change of temperature of less than 1/100,000 of a degree Celsius.<ref>[https://earthobservatory.nasa.gov/Features/Langley/langley_2.php Samuel Pierpont Langley], at ''earthobservatory.nasa.gov'', "...sensitive to differences in temperature of one hundred-thousandth of a degree Celsius (0.00001 C). Composed of two thin strips of metal, a Wheatstone bridge, a battery, and a galvanometer...",  accessed 31 October 2018</ref> It laid the foundation for the measurements of the amount of solar energy on the Earth. He published an 1881 paper on it, "The Bolometer and Radiant Energy".<ref>{{cite journal |last=Langley |first=S. P. |title=The Bolometer and Radiant Energy |journal=Proceedings of the American Academy of Arts and Sciences |volume=16 |date=1881 |pages=342–358 |doi=10.2307/25138616 |jstor=25138616 }}</ref> He made one of the first attempts to measure the surface temperature of the Moon, and his measurement of interference of the infrared radiation by carbon dioxide in Earth's atmosphere was used by [[Svante Arrhenius]] in 1896 to make the first calculation of how climate would change from a future doubling of carbon dioxide levels.<ref>Archer, David. ''The Long Thaw'' (2009<!--publisher & city?-->), p. 19.</ref>