John Hadley (chemist)
Encyclopedia
John Hadley was a British chemist and physician.
John Hadley was appointed in 1756 as the fourth Professor of Chemistry
at Cambridge University, the oldest continuously occupied chair of Chemistry in the UK. 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 St 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.
John Hadley was appointed in 1756 as the fourth Professor of Chemistry
BP Professor of Organic Chemistry
The BP Professorship of Organic Chemistry is one of the senior professorships at the University of Cambridge.Founded in 1702 by the university as simply 'Professor of Chemistry', it was retitled as the Professorship of Organic Chemistry in 1943, and in 1991 was renamed after a benefaction from the...
at Cambridge University, the oldest continuously occupied chair of Chemistry in the UK. During his time there he co-operated in 1758 with Benjamin Franklin
Benjamin Franklin
Dr. Benjamin Franklin was one of the Founding Fathers of the United States. A noted polymath, Franklin was a leading author, printer, political theorist, politician, postmaster, scientist, musician, inventor, satirist, civic activist, statesman, and diplomat...
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 St Thomas Hospital
St Thomas Hospital
St. Thomas Hospital may refer to the following hospitals:*Saint Thomas Hospital, Nashville, Tennessee, U.S.*St Thomas' Hospital, London, England, U.K.*St Thomas Hospital, Kerala, Kattimoola, Kerala, India...
. In 1763 he became full Physician to Charterhouse School
Charterhouse School
Charterhouse School, originally The Hospital of King James and Thomas Sutton in Charterhouse, or more simply Charterhouse or House, is an English collegiate independent boarding school situated at Godalming in Surrey.Founded by Thomas Sutton in London in 1611 on the site of the old Carthusian...
and became a Fellow of the Royal College of Physicians
Royal College of Physicians
The Royal College of Physicians of London was founded in 1518 as the College of Physicians by royal charter of King Henry VIII in 1518 - the first medical institution in England to receive a royal charter...
.
In 1758 he was elected as a Fellow of the Royal Society. He died in 1764 of a fever at the age of 33.