Search examples: Microsoft | 2015 | 2014/10 | 4.12 | 04/20 | 05/26/1980 | Galileo Galilei

Science on the 30th of November 1949 in history

Science

Date	Type	Text
30 Nov 1949 Dutch	science	Dutch (astronomy and space ) Dutch astronomer Jan Oort postulates the existence of an orbiting cloud of planets (the Oort cloud) at the outermost edge of the Solar System.	0
30 Nov 1949 Melvin Calvin	science	Melvin Calvin (biology) Melvin Calvin, James Bassham, and Andrew Benson at the University of California, Berkeley, discover the Calvin cycle in photosynthesis.	0
30 Nov 1949 Entomologist	science	Entomologist (biology) Entomologist Willi Hennig publishes Grundzüge einer Theorie der phylogenetischen Systematik in East Germany, pioneering the study of cladistics.	0
30 Nov 1949 myxomatosis	science	myxomatosis (biology) Full-scale release of myxomatosis for control of the Australian rabbit population.	0
30 Nov 1949 John Forbes Nash, Jr.	science	John Forbes Nash, Jr. (mathematics) John Forbes Nash, Jr. proposes the Nash equilibrium in game theory, initially in his Princeton doctoral thesis.	0
30 Nov 1949 prisoner's dilemma	science	prisoner's dilemma (mathematics) The prisoner's dilemma is framed by Merrill Flood and Melvin Dresher at RAND and formalized and named by Albert W. Tucker.	0
30 Nov 1949 Antihistamine	science	Antihistamine (medicine) Antihistamine discovered.	0
30 Nov 1949 artificial pacemaker	science	artificial pacemaker (medicine) An external artificial pacemaker is developed by John A. Hopps in conjunction with Wilfred Gordon Bigelow at Toronto General Hospital.	0
30 Nov 1949 John Ward	science	John Ward (physics) John Ward derives the Ward–Takahashi identity in quantum field theory.	0
30 Nov 1949 Canadians	science	Canadians (technology) Canadians Harry Wasylyk, Larry Hansen and Frank Plomp introduce the plastic bin bag for garbage collection.	0
30 Nov 1949 pager	science	pager (technology) First practical pager, developed and manufactured by the Reevesound Company, is introduced for physicians in the New York City area.	0
30 Nov 1949 J. Z. Young	science	J. Z. Young J. Z. Young delivers the BBC Reith Lectures on Doubt and Certainty in Science, introducing the radio audience to current developments in neurophysiology.	0
30 Nov 1949 Fields Prize in Mathematics	science	Fields Prize in Mathematics (awards) Fields Prize in Mathematics (first postwar award): Laurent Schwartz and Atle Selberg	0

29th November 1949 1st December 1949

Like us on

Onthisday

Follow us on

Tweets av @OnThisDayNet

Link to results

What happened on this day in history?

OnThisDay.net is your complete guide to find out what happened on this day in History. The front page on this site shows you a series of important happenings and you can browse them buy categories such as births, deaths, events, science, history, music, news and holidays. We have also added an anniversary tab displaying happenings deserving extra attention today. If you are missing an important happening we made it easy for you to add it to the list. Just click add event, fill out the form and your suggestion will be revised by one of our staff. Please feel free to vote on your favourite events. This will help us in our effort to display the most popular events first and make the site more interesting for the next visitor, as events with many votes eventually will be shown first.