Henry Cavendish

Died aged c. 79

Henry Cavendish FRS (/ˈkævəndɪʃ/; 10 October 1731 – 24 February 1810) was a British natural philosopher, scientist, and an important experimental and theoretical chemist and physicist. Cavendish is noted for his discovery of hydrogen or what he called "inflammable air". He described the density of inflammable air, which formed water on combustion, in a 1766 paper "On Factitious Airs". Antoine Lavoisier later reproduced Cavendish's experiment and gave the element its name. A notoriously shy man (it has been postulated that he was on the autism spectrum), Cavendish was nonetheless distinguished for great accuracy and precision in his researches into the composition of atmospheric air, the properties of different gases, the synthesis of water, the law governing electrical attraction and repulsion, a mechanical theory of heat, and calculations of the density (and hence the mass) of the Earth. His experiment to measure the density of the Earth has come to be known as the Cavendish experiment.

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Commemorated on 2 plaques

Nick Harrison on Flickr
Open Plaques on Flickr

Hon ble Henry Cavendish natural philosopher lived here born 1731 died 1810

11 Bedford Square, London, United Kingdom where they lived

Revd John Michell BD. FRS 1724-1793 geologist and astronomer. Rector of Thornhill 1767 - 1793. He experimented on magnetism and astronomy, also making a Torsion balance to weigh the world. His visitors here included Henry Cavendish, William Herschel, Joseph Priestley and John Smeaton.

Thornhill Parish Church, Church Ln, Thornhill, Dewsbury, United Kingdom where they visited