John Davy FRS FRSE (24 May 1790 – 24 January 1868) was a Cornish doctor, amateur chemist, brother of the noted chemist Sir Humphry Davy, and cousin of Edmund Davy.
During his career, Davy discovered phosgene, silicon tetrafluoride, and concluded that chlorine was an element.
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Algor mortis (from Latin algor 'coldness' and mortis 'of death'), the third stage of death, is the change in body temperature post mortem, until the ambient temperature is matched. This is generally a steady decline, although if the ambient temperature is above the body temperature (such as in a hot desert), the change in temperature will be positive, as the (relatively) cooler body equalizes with the warmer environment. External factors can have a significant influence.
The term was first used by Bennet Dowler in 1849. The first published measurements of the intervals of temperature after death were done by John Davy in 1839.
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