Background
He was born in Bloomsbury, London the eldest son of George Hadley of Enfield Chase near East Barnet, Hertfordshire and his wife Katherine FitzJames. In 1729 he inherited his father"s East Barnet estate.
He was born in Bloomsbury, London the eldest son of George Hadley of Enfield Chase near East Barnet, Hertfordshire and his wife Katherine FitzJames. In 1729 he inherited his father"s East Barnet estate.
Born in London to Henry Hadley, he was educated at Queens College, Cambridge, graduating Bachelor of Arts in 1753.
Foreign John Hadley the mathematician (1682–1744) see John Hadley
John Hadley (1731 – 5 November 1764) was a British chemist and physician. In 1756 he was appointed the fourth Professor of Chemistry at Cambridge University, the oldest continuously occupied chair of Chemistry in the United Kingdom. During his time there he co-operated in 1758 with Benjamin Franklin on a series of experiments to investigate latent heat. They found that a mercury thermometer sprayed with ether which was then evaporated by blowing could fall to −7 degrees Celsius in a warm room.
The Professorship was unpaid so Hadley studied medicine and obtained in 1758 a Physick Fellowship.
He then moved to London in 1760 and got a post as Assistant Physician at Street Thomas" Hospital. In 1763 he became full Physician to Charterhouse School and became a Fellow of the Royal College of Physicians.
In 1758 he was elected as a Fellow of the Royal Society. He died in 1764 of a fever at the age of 33.
Mons Hadley and Rima Hadley on the Moon are named after him. The Oasis Trust Academy in Ponders End is called Oasis Academy Hadley in his honour.
Royal Society]
He died in East Barnet in 1744 and is buried in the local churchyard with other members of his family.
