## Mathematicians Of The Day

### 9th July

On this day in 1857, Karl Weierstrass made his inaugural speech to the Berlin Academy.

Click on Ⓟ for a poster.

##### Born:

- 1801: Henry Moseley Ⓟ
- 1845: George Darwin Ⓟ
- 1912: David Champernowne Ⓟ
- 1918: Nicolaas de Bruijn Ⓟ
- 1922: Kathleen Booth Ⓟ
- 1929: Elon Lima Ⓟ
- 1931: Valentina Mikhailovna Borok Ⓟ

##### Died:

- 1941: Robert d'Adhémar Ⓟ
- 1947: Beatrice Mabel Cave-Browne-Cave Ⓟ
- 1953: Henri Padé Ⓟ
- 1968: Giuseppe Pompilj Ⓟ
- 1980: Tomás Rodríguez Bachiller Ⓟ
- 1980: Arend Heyting Ⓟ
- 1984: Edna Kramer Ⓟ
- 1986: Ernst Peschl Ⓟ
- 2002: Laurence Raymond Harper
- 2014: Alan Mercer Ⓟ

#### Quotation of the day

##### From George Darwin

A mathematical argument is, after all, only organized common sense, and it is well that men of science should not always expound their work to the few behind a veil of technical language, but should from time to time explain to a larger public the reasoning which lies behind their mathematical notation.