1972 in science

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The year 1972 in science and technology involved some significant events, listed below.

Astronomy and space exploration

• January 5 – President of the United States Richard Nixon orders the development of a space shuttle program.
• February 4 – Mariner 9 sends pictures from Mars.
• February 21 – The Soviet unmanned spacecraft Luna 20 lands on the Moon.
• March 2 – Launch of Pioneer 10 spacecraft.
• April 16 – Apollo 16 launched.
• June 30 – The International Time Bureau adds the first leap second to Coordinated Universal Time (UTC).
• July 23 – The United States launches Landsat 1, the first Earth-resources satellite.
• December 7 – Apollo 17 launched and 'The Blue Marble' photograph of the Earth taken.

Biology

• Niles Eldridge and Stephen Jay Gould publish their landmark paper on punctuated equilibrium
• Socorro doves (Zenaida graysoni) last seen in the wild. The species precariously survives in captivity. A reintroduction program is being prepared.

Computer science

• April 6 – Cray Research founded.
• May – Magnavox release the first home video game console which can be connected to a television set – the Magnavox Odyssey, invented by Ralph H. Baer.
• October – The First International Conference on Computer Communications is held in Washington, D.C. and hosts the first public demonstration of ARPAnet, a precursor of the Internet.
• November 29 – Atari release the production version of Pong, one of the first video games, devised by Nolan Bushnell and Allan Alcorn.
• Write-only memory is devised as a joke in Signetics.

Ecology

• January – A Blueprint for Survival first published as a special edition of The Ecologist magazine in the United Kingdom.
• James Lovelock first refers to the Gaia hypothesis in print.

Food science

• Kadir Nurman invents the doner kebab in Berlin.

Mathematics

• Daniel Quillen formulates higher algebraic K-theory.
• Daniel Gorenstein announces a 16-step program for completing the classification of finite simple groups.
• Richard M. Karp shows that the Hamiltonian cycle problem is NP-complete.

Medicine

• January 31 – Immunosuppressive effect of ciclosporin discovered by a team at Sandoz, Basel, under Hartmann F. Stähelin.
• Archie Cochrane publishes Effectiveness and Efficiency: Random Reflections on Health Services.

Paleontology

• Kielan-Jawarowska and Rinchen Barsbold report the associated remains of a Velociraptor and Protoceratops apparently killed and preserved while fighting.

Technology

• February 1 – The first scientific hand-held calculator (labeled Hewlett-Packard, later designated the HP-35) is introduced, at a price of $795.00.
• July 10 – Jack Cover files U.S. Patent 3,803,463 for the original form of Taser electroshock weapon.

Awards

• Nobel Prizes
  • Physics – John Bardeen, Leon Neil Cooper, John Robert Schrieffer
  • Chemistry – Christian B. Anfinsen, Stanford Moore, William H. Stein
  • Medicine – Gerald Edelman, Rodney R Porter
• Turing Award – Edsger Dijkstra

Births

• March 31 – Evan Williams, American Internet entrepreneur.
• April 5 – Nima Arkani-Hamed, Canadian-American theoretical physicist.
• June 21 – Warren Lyford DeLano, American bioinformatician and open source advocate (d. 2009).

Deaths

• August 25 – Lucien Bull (b. 1876), Irish-born French pioneer in chronophotography.
• October 1 – Louis Leakey (b. 1903), British paleontologist.