23rd July

Mathematicians who were born or died on 23rd July

Mathematicians born on this day:

1775 : Malus
1854 : Sleszynski
1863 : Kelly Miller
1888 : Carlson
1914 : William Wager Cooper
1920 : Federer
1932 : Whiteside
1960 : Heinonen

Mathematicians who died on this day:

1903 : Eduard Weyr
1938 : Brown
1964 : Roy
1964 : Rogosinski
1993 : David
2006 : Mosteller

Posters available   (Click on a link below)

Ernest Brown Étienne Louis Malus Werner Rogosinski

A quotation for today

Étienne Louis Malus (1775 - 1812)

We find that light acquires properties which are relative only to the sides of the ray, -- which are the same for the north and south sides of the ray, (using the points of the compass for description's sake only) and which are different when we go from the north and south to the east or to the west sides of the ray. I shall give the name of poles to these sides of the ray, and shall call polarization the modification which gives to light these properties relative to these poles.

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School of Mathematics and Statistics
University of St Andrews, Scotland