1973 жылғы ғылым мен технология жетістіктері

The year 1973 in science and technology involved some significant events, listed below.

December 28 – Endangered Species Act signed into law in the United States.

Waldo R. Tobler introduces the Tobler hyperelliptical projection.

A successful method of Vitamin B12 total synthesis is reported by the groups of Robert Burns Woodward and Albert Eschenmoser.

March 1 – Xerox PARC releases the Xerox Alto, the first computer designed to support an operating system based on a graphical user interface. September – The TV Typewriter appears on the cover of Radio Electronics. Designed by Don Lancaster, it is a video terminal that can display two pages of 16 lines of 32 upper case characters on a standard television set. October – A form of the suffix automaton is introduced by Peter Weiner. November 21 – The sci fi movie Westworld is the first feature film to use digital image processing.

October – Asymmetric key algorithms for public key cryptography developed by James H. Ellis, Clifford Cocks and Malcolm J. Williamson at the United Kingdom Government Communications Headquarters.

Derek Ager publishes The Nature of the Stratigraphical Record.

May 5–July 28 – BBC Television series The Ascent of Man, written and presented by Jacob Bronowski, first airs; there is also an accompanying bestselling book.

Fischer Black and Myron Scholes first articulate the Black–Scholes mathematical model of a financial market containing certain derivative investment instruments. Jürgen Stückrad and Wolfgang Vogel introduce the Buchsbaum ring.

August – Production of monoclonal antibodies involving human–mouse hybrid cells is first described by Jerrold Schwaber. The term "dendritic cell" is coined by Ralph M. Steinman working with Zanvil A. Cohn. The term "Norrmalmstorgssyndromet", translated as Stockholm syndrome, is coined by Nils Bejerot.

David Rosenhan publishes the results of his experiment into the validity of psychiatric diagnosis. The American Psychiatric Association publishes the 1st edition of its Principles of Medical Ethics, incorporating the 'Goldwater rule' (that it is unethical for a psychiatrist to offer a professional opinion on an individual in the public eye without an examination and consent). December 15 – The American Psychiatric Association removes the definition of homosexuality as a mental disorder from the 2nd edition of its Diagnostic and Statistical Manual of Mental Disorders (DSM II).

April 2 – The LexisNexis computerized legal research service begins. April 3 – The first handheld mobile phone call is made by Martin Cooper of Motorola in New York City. June 4 – A United States patent for the Docutel automated teller machine is granted to Donald Wetzel, Tom Barnes and George Chastain. Ichiro Kato, Waseda University, develops the world's first full scale humanoid robot, Wabot 1.

March 6 – The Montenegrin Academy of Sciences and Arts, founded as the Montenegrin Society for Science and Arts (Crnogorsko društvo za nauku i umjetnost), elects its first members.

February 11 – J. Hans D. Jensen (b. 1907), German nuclear physicist
February 20 – Alf Lysholm (b. 1893), Swedish mechanical engineer. March 12 – David Lack (b. 1910), English ornithologist
March 14 – Howard H. Aiken (b. 1900), American computing pioneer
March 28 – C. Doris Hellman (b. 1910), American historian of science
March 30 – William Justin Kroll (b. 1889), Luxembourgish metallurgist
May 21 – Grigore Moisil (b. 1906), Romanian mathematician, died in Canada
July 1 – Laurens Hammond (b. 1895), American inventor
August 9 – Preben von Magnus (b. 1912), Danish virologist
August 12 – Walter Rudolf Hess (b. 1881), Swiss physiologist, recipient of the Nobel Prize in Physiology or Medicine
August 16 – Selman Waksman (b. 1888), Ukrainian born Jewish American biochemist and microbiologist
November 25 – Elisa Leonida Zamfirescu (b. 1887), Romanian engineer
December 10 – Wolf V. Vishniac (b. 1922), American microbiologist
December 17 – Charles Greeley Abbot (b. 1872), American astrophysicist