Feb
25
Tue
Maria M Kirch born, 1670 (d. 1720)
Feb 25 all-day

Maria Margaretha Kirch (née Winckelmann, in historic sources named Maria Margaretha Kirchin; 25 February 1670 – 29 December 1720) was a German astronomer, and one of the first famous astronomers of her period due to her writings on the conjunction of the sun with Saturn, Venus, and Jupiter in 1709 and 1712 respectively. – Wikipedia

Mar
1
Sun
E. M. Antoniadi born, 1870 (d. 1944).
Mar 1 all-day

Eugène Michel Antoniadi (1 March 1870 – 10 February 1944) was a Greek astronomer.

He became a Fellow of the Royal Astronomical Society on 10 February 1899, and in 1890 he became one of the founding members of the British Astronomical Association (BAA). In 1892, he joined the BAA’s Mars Section and became that section’s Director in 1896.

He became a member of the Société astronomique de France (SAF) in 1891.

Mar
3
Tue
Charlotte E. Moore Sitterly died, 1990 (b. 1898).
Mar 3 all-day

Charlotte Emma Moore Sitterly (September 24, 1898 – March 3, 1990) was an American astronomer. She is known for her extensive spectroscopic studies of the Sun and chemical elements. Her tables of data are known for their reliability and still used regularly – Wikipedia

Mar
11
Wed
J. Garavito Armero died, 1920 (b. 1865).
Mar 11 all-day

Julio Garavito Armero (January 5, 1865 – March 11, 1920) was a Colombian astronomer.

Born in Bogotá, he was a child prodigy in science and mathematics. He obtained his degrees as mathematician and civil engineer in the Universidad Nacional de Colombia (National university of Colombia). In 1892 he worked as the director of the Observatorio Astronómico Nacional (National Astronomical Observatory). His investigative works had been published in Los Anales de Ingeniería (The Annals of Engineering) since 1890, seven years before he took over editing the publication. – Wikipedia

Mar
16
Mon
Caroline L Herschel born, 1750 (d. 1848).
Mar 16 all-day
Apr
18
Sat
J. A. Fleming died, 1945 (b. 1849).
Apr 18 all-day
Apr
26
Sun
Srinivasa Ramanujan died, 1920 (b. 1887),
Apr 26 all-day
May
15
Fri
Maximilian Hell, S.J., born 1720 (d. 1792).
May 15 all-day
Jun
16
Tue
S. Chapman died, 1970 (b. 1888).
Jun 16 all-day

Sydney Chapman FRS (29 January 1888 – 16 June 1970) was a British mathematician and geophysicist. His work on the kinetic theory of gasessolar-terrestrial physics, and the Earth‘s ozone layer has inspired a broad range of research over many decades.

Jul
5
Sun
W. J. M. Rankine born, 1820 (d. 1872).
Jul 5 all-day

Prof William John Macquorn Rankine (/ˈræŋkɪn/FRSE FRS LLD (5 July 1820 – 24 December 1872) was a Scottish mechanical engineer who also contributed to civil engineering, physics and mathematics. He was a founding contributor, with Rudolf Clausius and William Thomson (Lord Kelvin), to the science of thermodynamics, particularly focusing on the first of the three thermodynamic laws. He developed the Rankine scale, an equivalent to the Kelvin scale of temperature, but in degrees Fahrenheit rather than centigrade.

Rankine developed a complete theory of the steam engine and indeed of all heat engines. His manuals of engineering science and practice were used for many decades after their publication in the 1850s and 1860s. He published several hundred papers and notes on science and engineering topics, from 1840 onwards, and his interests were extremely varied, including, in his youth, botanymusic theory and number theory, and, in his mature years, most major branches of science, mathematics and engineering.

He was an enthusiastic amateur singer, pianist and cellist who composed his own humorous songs. – Wikipedia