He was an English chemist and physicist, born in Ireland. After
moving to Oxford in 1654 he worked on gases, using
an air pump made by Robert Hooke.
In 1662 he discovered
Boyle's law. In chemistry he worked on flame
tests and acid-base indicators.
Boyle is generally
regarded as the person who established chemistry as
a modern subject, distinct from alchemy. He was the
first to give a definition of a chemical element.