MacTutor
Mathematicians Of The Day
23rd May
On this day in 1576, Tycho Brahe was given use of the island of Hven (now Ven in Sweden) for his astronomical observatory. He built two observatories: Uraniborg and Stjerneborg.
Click on Ⓟ for a poster.
Born:
- 1606: Juan Caramuel Ⓟ
- 1884: Corrado Gini Ⓟ
- 1886: Luigi Amoroso Ⓟ
- 1887: Thoralf Skolem Ⓟ
- 1901: John Williamson
- 1903: William Prager Ⓟ
- 1914: Lipman Bers Ⓟ
- 1917: Edward Lorenz Ⓟ
- 1928: Ioan James Ⓟ
- 1936: John Howie Ⓟ
- 1940: Cora Sadosky Ⓟ
Died:
- 1691: Adrien Auzout Ⓟ
- 1857: Augustin-Louis Cauchy Ⓟ
- 1885: Thomas Clausen Ⓟ
- 1889: George-Henri Halphen Ⓟ
- 1895: Franz Neumann Ⓟ
- 2005: Umirzak Sultangazin Ⓟ
- 2014: Bronius Grigelionis Ⓟ
- 2015: John F Nash Ⓟ
Quotation of the day
From Augustin-Louis Cauchy
√-1 we can repudiate completely and which we can abandon without regret because one does not know what this pretended sign signifies nor what sense one ought to attribute to it.
