1923 in science
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The year 1923 in science and technology involved some significant events, listed below.
Contents |
[edit] Aeronautics
- Juan de la Cierva invents the autogyro, a rotary-winged aircraft with an unpowered rotor.
[edit] Astronomy
- October 21 - First official public showing of a planetarium projector, a Zeiss model at the Deutsches Museum in Munich.[1]
[edit] Biology
- Karl von Frisch publishes "Über die ‚Tiersprache|Sprache‘ der Bienen. Eine tierpsychologische Untersuchung" ("On the 'language' of bees: an examination of animal psychology").[2]
[edit] Cryptography
- Enigma machine first produced commercially.[3]
[edit] Electronics
- Otto Julius Zobel of Bell Labs describes the type of signal processing filter sections based on the image impedance design principle which will become known as Zobel networks.[4]
[edit] Expeditions
[edit] Medicine
- February - The Maudsley Hospital, established jointly by the London County Council and Henry Maudsley, admits its first psychiatric patients.
[edit] Paleontology
- July 13 - An American Museum of Natural History expedition to Mongolia under Roy Chapman Andrews is the first in the world to discover fossil dinosaur eggs. Initially thought to belong to the ceratopsian Protoceratops, they were determined in 1995 actually to belong to the theropod Oviraptor.[5]
[edit] Awards
- Nobel Prizes
- Copley Medal: Horace Lamb
- Wollaston Medal for Geology: William Whitaker
[edit] Births
- January 1 - Daniel Gorenstein (died 1992), mathematician.
- February 13 - Chuck Yeager, pilot.
- March 9 - Walter Kohn, physicist.
- April 2 - G. Spencer-Brown, mathematician.
- April 23 - Walter Pitts (died 1969), logician and cognitive psychologist.
- September 9 - Daniel Carleton Gajdusek, virologist.
- November 18 - Alan Shepard (died 1998), astronaut.
[edit] Deaths
- February 10 - Wilhelm Röntgen (born 1845), physicist, discoverer of X-rays, Nobel laureate.
- February 24 - Edward Morley (born 1838), chemist.
- March 8 - Johannes Diderik van der Waals (born 1837), physicist.
- March 27 - James Dewar (born 1842), chemist.
- August 23 - Hertha Ayrton (born 1854), electrical engineer.
- December 27 - Gustave Eiffel (born 1832), structural engineer.
[edit] References
- ^ Chartrand, Mark (September 1973). "A Fifty Year Anniversary of a Two Thousand Year Dream (The History of the Planetarium)". The Planetarian (International Planetarium Society) 2 (3). ISSN 0090-3213. http://www.ips-planetarium.org/planetarian/articles/twothousandyr_dream.html. Retrieved 2009-02-26.
- ^ Zoologische Jahrbücher (Physiologie) 40: pp. 1–186.
- ^ Singh, Simon (1999). The Code Book: the Science of Secrecy from Ancient Egypt to Quantum Cryptography. London: Fourth Estate. ISBN 1-85702-879-1.
- ^ Zobel, O. J. (1923). "Theory and Design of Uniform and Composite Electric Wave Filters". Bell Systems Technical Journal 2: 1–46.
- ^ Fastovsky, David. "Life and Death in a 70 Million-Year-Old Sand Sea". http://www.gso.uri.edu/maritimes/Back_Issues/00%20Summer/Text(htm)/protoceratops.htm. Retrieved 2011-02-14.
