1894 in science

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The year 1894 in science and technology involved some significant events, listed below.

Astronomy

• March 21 (23:00 GMT) – Syzygy: Mercury transits the Sun as seen from Venus, and Mercury and Venus both simultaneously transit the Sun as seen from Saturn.

Biology

• Patrick Manson develops the thesis that malaria is spread by mosquitoes.
• Jean Pierre Mégnin publishes La faune des cadavres application de l'entomologie à la médecine légale in Paris, an important text in forensic entomology.

Chemistry

• Argon identified by Lord Rayleigh and Sir William Ramsay.
• Viscose, a form of artificial silk or rayon, is patented by Charles Frederick Cross with Edward John Bevan and Clayton Beadle.

Psychology

• Psychological Review established in the United States by James Mark Baldwin and James McKeen Cattell.

Technology

• February 13 – Auguste and Louis Lumière patent the Cinematographe, a combination movie camera and projector.
• August 13 – The first Allan truss bridge, designed by Percy Allan, is completed in New South Wales.
• August 14 – Oliver Lodge demonstrates radio transmission (of Morse code) in the University of Oxford from the Clarendon Laboratory to the University Museum for the British Association for the Advancement of Science.
• November 6 – William C. Hooker of Abingdon, Illinois is granted a United States patent for a spring-loaded mousetrap.
• Construction of the first oil-engined rail locomotive, an experimental unit designed by William Dent Priestman and built by his company, Priestman Brothers of Hull, England.
• John Joly of Dublin devises the Joly colour screen, an additive colour photographic process for producing images from a single photographic plate.

Awards

• Copley Medal: Edward Frankland
• Wollaston Medal for Geology: Karl von Zittel

Births

• January 1 – S. N. Bose (died 1974), Indian physicist.
• January 13 – Dorothée Pullinger (died 1986), French-born British production engineer.
• February 11 – Izaak Kolthoff (died 1993), Dutch 'father of analytical chemistry'.
• May 5 – August Dvorak (died 1975), American educational psychologist.
• June 23 – Alfred Kinsey (died 1956), American biologist, professor of entomology and zoology, and sexologist, founder of the Institute for Sex Research at Indiana University (Bloomington) in 1947.
• July 17 – Georges Lemaître (died 1966), Belgian physicist.
• November 19 – Heinz Hopf (died 1971), German mathematician.

Deaths

• January 1 – Heinrich Hertz (born 1857), physicist.
• February 3 – Edmond Frémy (born 1814), chemist.
• November 26 – Pafnuty Chebyshev (born 1821), mathematician.
• October 7 – Oliver Wendell Holmes, Sr. (born 1809), physician and writer.
• September 8 – Hermann von Helmholtz (born 1821), physicist.