Article Detail Who invented Logarithms ? Answer: John Napier (Scotland) invented Logarithm Ad Similar Questions : 1. Who invented Neutron bomb ? Answer: Samuel T. Cohen 2. Who invented Atomic theory ? Answer: Dalton of Britain in 1803. 3. Who invented Circulation of blood ? Answer: William Harvey of Britain in 1628 4. Who invented CT scan ? Answer: Hounsfield by Britain in 1973. 5. Who invented Vitamin B1 ? Answer: Casimir Funk discovered in 1912 6. Who invented Safety razor ? Answer: King Camp Gillette of U.S.A. in 1903 7. Who invented Neutron ? Answer: JAMES CHADWICK in 1932 Read more from - Important Inventions