| 释义 |
- Events
- Chemistry
- Life sciences
- Mathematics
- Awards
- Births
- Deaths
- References
{{Year nav topic5|1869|science}}The year 1869 in science and technology involved some significant events, listed below. Events- November 4 – The first issue of scientific journal Nature is published in London, edited by Norman Lockyer.
Chemistry- March 6 – Dmitri Mendeleev makes a formal presentation of his periodic table to the Russian Chemical Society.
- June 15 – John Wesley Hyatt patents celluloid, in Albany, New York.
- German chemist Lothar Meyer makes in his work „Die Natur der chemischen Elemente als Funktion ihrer Atomgewichte" a formal presentation of his revised and expanded version of his 1864 table independently periodic table.
- Hippolyte Mège-Mouriès patents margarine (as oleomargarine) in France as a beef tallow and skimmed milk substitute for butter.
- Publication of Adolphe Wurtz's Dictionnaire de chimie pure et appliquée begins in Paris.
Life sciences- April 6 – The American Museum of Natural History is founded in New York.
- Paul Langerhans discovers the pancreatic islets.
- Friedrich Miescher discovers deoxyribonucleic acid (DNA) in the pus of discarded surgical bandages. Found in the nuclei of cells, Miescher names it "nuclein".
- French missionary and naturalist Père Armand David receives the skin of a giant panda from a hunter, the first time this species has become known to a Westerner;[1] he also first describes a specimen of the "pocket handkerchief tree", which will be named in his honor as Davidia involucrata.
- Alfred Russel Wallace publishes The Malay Archipelago.
Mathematics- W. Stanley Jevons publishes The Substitution of Similars and has a "Logic Piano" constructed to work out problems in symbolic logic.[2]
- Hermann Schwarz devizes Schwarz–Christoffel mapping.
Awards- Copley Medal: Henri Victor Regnault
- Wollaston Medal for Geology: Henry Clifton Sorby
Births- February 14 – C. T. R. Wilson (died 1959), Scottish winner of the Nobel Prize in Physics.
- April 8 – Harvey Cushing (died 1939), American neurosurgeon.
- July 18 – Maria von Linden (died 1936), German bacteriologist and zoologist.
- August 23 – Robert Gunther (died 1940), English historian of science.
- October 3 – Robert W. Paul (died 1943), English pioneer of cinematography.
- December 16 – Bertha Lamme (died 1943), American electrical engineer.
- Helen Boyle (died 1957), British physician and psychologist.
Deaths- July 22 – John A. Roebling (born 1806), German American bridge engineer.
- September 11 – Thomas Graham (born 1805), Scottish chemist.
References1. ^{{cite web|url=http://www.britannica.com/EBchecked/topic/441032/giant-panda|title=Giant Panda|year=2010|work=Encyclopædia Britannica Online|accessdate=2010-08-09}}
2. ^{{cite book|authorlink=Ivor Grattan-Guinness|last=Grattan-Guinness|first=Ivor|year=2000|title=The Search for Mathematical Roots, 1870–1940|publisher=Princeton University Press|isbn=978-0-691-05857-3}}
{{DEFAULTSORT:1869 In Science}} 4 : 1869|1860s in science|1869 in science|19th century in science |