births
Sydney Chapman, English mathematician and geophysicist (died 1970)
Related Wikipedia articles
Sydney Chapman (mathematician)
British mathematician and geophysicist
Sydney Chapman was a British mathematician and geophysicist. His work on the kinetic theory of gases, solar-terrestrial physics, and the Earth's ozone layer has inspired a broad range of research over many decades.Source: Wikipedia (CC BY-SA)
January 29
Day of the year
January 29 is the 29th day of the year in the Gregorian calendar; 336 days remain until the end of the year.Source: Wikipedia (CC BY-SA)