John Joly, Date of Birth, Place of Birth, Date of Death

John Joly

Irish scientist

Date of Birth: 01-Nov-1857

Place of Birth: Bracknagh, Leinster, Ireland

Date of Death: 08-Dec-1933

Profession: physician, physicist, geologist

Nationality: Ireland

Zodiac Sign: Scorpio

John Joly FRS (1 November 1857 – 8 December 1933) was an Irish physicist and professor of geology at the University of Dublin famous for his development of radiotherapy in the treatment of cancer.
He is also known for developing techniques to estimate accurately the age of a geological period, based on radioactive elements present in minerals, the uranium–thorium dating.