Editing 1903 in science (section)

==Births==
* January 22 – [[Fritz Houtermans]] (died [[1966 in science|1966]]), Danzig-born Dutch [[physicist]].
* January 27 – [[John Eccles (neurophysiologist)|John Eccles]] (died [[1997 in science|1997]]), Australian-born [[psychologist]].
* January 28 – [[Kathleen Lonsdale]], née Yardley (died [[1971 in science|1971]]), [[Ireland|Irish-born]] [[X-ray crystallography|crystallographer]].
* February 2 – [[Bartel Leendert van der Waerden]] (died [[1996 in science|1996]]), [[Dutch people|Dutch]] [[mathematician]].<ref>{{cite book|title=Sets and Extensions in the Twentieth Century|date=2012|publisher=Elsevier|isbn=9780080930664|page=175|url=https://books.google.com/books?id=RBrWwKVbmMUC&pg=PA175}}</ref>
* February 22 – [[Frank P. Ramsey]] (died [[1930 in science|1930]]), English mathematician.
* April 6 – "Doc" [[Harold Eugene Edgerton]] ("Papa Flash", died [[1990 in science|1990]]), American [[electrical engineer]].
* April 9 – [[Gregory Goodwin Pincus]] (died [[1967 in science|1967]]), American [[biologist]], co-inventor of the [[combined oral contraceptive pill]].
* April 25 – [[Andrey Kolmogorov]] (died [[1987 in science|1987]]), Russian mathematician.
* May 2 – [[Benjamin Spock]] (died [[1998 in science|1998]]), American [[pediatrician]] and writer.
* May 18 – [[Frits Warmolt Went]] (died [[1990 in science|1990]]), Dutch-born American botanist.
* June 14 – [[Alonzo Church]] (died [[1995 in science|1995]]), American mathematician.
* July 16 – [[Irmgard Flügge-Lotz]] (died [[1974 in science|1974]]), German-American mathematician and [[aerospace engineer]]
* August 7 – [[Louis Leakey]] (died [[1972 in science|1972]]), [[British East Africa]]n [[paleoanthropologist]].
* October 4 – [[Cyril Stanley Smith]] (died [[1992 in science|1992]]), English-born metallurgist.
* October 5 – [[M. King Hubbert]] (died [[1989 in science|1989]]), American [[geophysicist]].
* October 10 – [[Bei Shizhang]] (died [[2009 in science|2009]]), [[China|Chinese]] biologist and founder of the [[Institute of Biophysics, Chinese Academy of Sciences]].
* November 7 – [[Konrad Lorenz]] (died 1989), [[Austrians|Austrian]] [[zoologist]].
* November 27 – [[Lars Onsager]] (died [[1976 in science|1976]]), Norwegian-born [[chemist]].
* December 19 – [[George Davis Snell]] (died 1996), American mouse [[geneticist]] and basic transplant [[immunologist]].<ref>{{cite web|title=George Davis Snell – American geneticist|url=https://www.britannica.com/biography/George-Davis-Snell|website=Encyclopædia Britannica|accessdate=21 February 2018}}</ref>
* December 28 – [[John von Neumann]] (died [[1957 in science|1957]]), Hungarian-born mathematician.