The year 1946 in science and technology had many significant events, including those listed below.

Computer science

• ENIAC, the first non-classified all-electronic computer, becomes operational

Awards

• Nobel Prizes
  • Physics - Percy Williams Bridgman
  • Chemistry - James B. Sumner, John Howard Northrop, Wendell Meredith Stanley
  • Medicine - Hermann Joseph Muller

Births

• May 11 - Robert Jarvik, co-inventor of the Jarvik-7 artificial heart.
• June 24 - Ellison Onizuka (d. 1986), astronaut.
• July 2 - Richard Axel, physiologist, Nobel prize winner
• September 7 - Francisco Varela (d. 2001), biologist and philosopher.
• October 18 - Kay Redfield Jamison

Deaths

• March 23 - Gilbert N. Lewis (b. 1875), chemist. First to isolate deuterium.
• May 2 - Simon Flexner (b. 1863), pathologist and bacteriologist.
• June 14 - John Logie Baird (b. 1888), inventor.
• September 16 - James Hopwood Jeans (b. 1877), mathematician and scientist.