21st June

Mathematicians who were born or died on 21st June

Mathematicians born on this day:

1781 : Poisson
1802 : Brasseur
1828 : Bruno
1868 : James Macdonald
1894 : Harry Schmidt
1918 : Szele
1954 : Krejci

Mathematicians who died on this day:

1820 : Petit
1824 : Fergola
1913 : Tarry
1929 : Rudio
1940 : Doeblin
1947 : Nikolai Sergeevitch Krylov
1948 : D'Arcy Thompson
2007 : John Todd

Posters available   (Click on a link below)

Siméon Poisson D'Arcy Thompson

A quotation for today

D'Arcy Thompson (1860 - 1948)

Cell and tissue, shell and bone, leaf and flower, are so many portions of matter, and it is in obedience to the laws of physics that their particles have been moved, moulded and conformed. They are no exceptions to the rule that God always geometrizes. Their problems of form are in the first instance mathematical problems, their problems of growth are essentially physical problems, and the morphologist is, ipso facto, a student of physical science.

On Growth and Form (Cambridge 1917)

Another quotation by one of today's mathematicians

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School of Mathematics and Statistics
University of St Andrews, Scotland