Template:Selected anniversaries/September 28: Difference between revisions
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||1858: Donati's comet (discovered by Giovanni Donati, 1826-1873) became the first to be photographed. It was a bright comet that developed a spectacular curved dust tail with two thin gas tails, captured by an English commercial photographer, William Usherwood, using a portrait camera at a low focal ratio. | ||1858: Donati's comet (discovered by Giovanni Donati, 1826-1873) became the first to be photographed. It was a bright comet that developed a spectacular curved dust tail with two thin gas tails, captured by an English commercial photographer, William Usherwood, using a portrait camera at a low focal ratio. | ||
||1860: Paul Ulrich Villard born ... chemist and physicist. | ||1860: Paul Ulrich Villard born ... chemist and physicist. Pic. | ||
||1803: Guglielmo Libri Carucci dalla Sommaja dies ... mathematician and academic. Pic. | |||
||1889: The first General Conference on Weights and Measures (CGPM) defines the length of a meter as the distance between two lines on a standard bar of an alloy of platinum with ten percent iridium, measured at the melting point of ice. | ||1889: The first General Conference on Weights and Measures (CGPM) defines the length of a meter as the distance between two lines on a standard bar of an alloy of platinum with ten percent iridium, measured at the melting point of ice. | ||
Revision as of 07:02, 7 February 2019
1494: Doctor, astronomer, and crime-fighter Johannes Engel publishes an almanac which uses Gnomon algorithm functions to predict crimes against astronomical constants with unprecedented accuracy.
1605: Mathematician and astronomer Ismaël Bullialdus born. He will be an active member of the Republic of Letters, and an early defender of the ideas of Copernicus, Kepler and Galileo.
1890 (or 1892): Electrical engineer Florence Violet McKenzie born. She will be was Australia's first female electrical engineer, founder of the Women's Emergency Signalling Corps (WESC), and lifelong promoter for technical education for women.
1916: Time-travelling physician-warrior Asclepius Myrmidon arrives during a chemical warfare attack in western Europe, sets up emergency field hospital.
1925: Physicist and mathematician Martin David Kruskal born. He will make fundamental contributions in many areas of mathematics and science, including the discovery and theory of solitons.
1953: Astronomer and cosmologist Edwin Hubble dies. He discovered the fact that the Andromeda "nebula" is actually another island galaxy far outside of our own Milky Way.
2016: Blue Green Blossom voted Picture of the Day by the citizens of New Minneapolis, Canada.