Record

RefNoPP/3/17
Previous numbersPP/35/18
LevelFile
TitlePaper, 'On the dependence of radiation on temperature' by [Charles] William Siemens
Date1883
DescriptionSiemens writes: 'Sir Isaac Newton held that the radiation of heat from a hot body, increased in arithmetical ratio with the difference of temperature between it and the surrounding bodies. This law forms a rough approximation to the truth over a very limited range of temperature. MM. Dulong and Petit carried out an elaborate experimental research on the rate of cooling of hot bodies by radiation, extending to somewhat higher temperatures, and deduced from their observations the empirical formula: Rate of cooling = m (l·0077)‘(l·0077T-t -l). Here T is the temperature of the hot body in degrees Centigrade, t the temperature of the surrounding matter, and m is a constant depending on the nature of the radiating body. This formula agrees very fairly with experimental results for ordinary temperatures, but like Newton’s law, it has been shown that it cannot be applied for a wider range.'

Annotations in pencil and ink. Includes two diagrams of experimental apparatus and results.

Subject: Physics

Received 25 April 1883. Read 26 April 1883.

A version of this paper was published in volume 35 of the Proceedings of the Royal Society as 'On the dependence of radiation on temperature'.
Extent26p
FormatManuscript
Diagram
PhysicalDescriptionInk and graphite pencil on paper
Digital imagesView item on Science in the Making
AccessStatusOpen
RelatedMaterialDOI: 10.1098/rspl.1883.0035
Fellows associated with this archive
CodePersonNameDates
NA6256Siemens; Sir; Charles William (1823 - 1883)1823 - 1883
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