Sir Humphry Davy
Sir Humphry Davy, detail of an oil painting after Sir Thomas Lawrence; in the National Portrait Gallery, London.
Sir Humphry Davy
English chemist
Also known as: Sir Humphry Davy, Baronet
Sir Humphry Davy (born December 17, 1778, Penzance, Cornwall, England—died May 29, 1829, Geneva, Switzerland) was an English chemist who discovered several chemical elements (including sodium and potassium) and compounds, invented the miner’s safety lamp, and became one of the greatest exponents of the scientific method. Davy was the elder son of middle-class parents who owned an estate in Ludgvan, Cornwall, England. He was educated at the grammar school in nearby Penzance and, in 1793,...