## Mathematicians Of The Day

### 16th June

On this day in 1902, Bertrand Russell wrote to Gottlob Frege to say that in his

On this day in 2003 Google released an Escher doodle (a day early).

*Grundgesetze der Arithmetik*:... there is just one point where I have encountered a difficulty.The difficulty was the

*Russell Paradox*. Frege responded... your discovery of the contradiction caused me the greatest surprise and, I would almost say, consternation, since it has shaken the basis on which I intended to build arithmetic.

On this day in 2003 Google released an Escher doodle (a day early).

Click on Ⓟ for a poster.

##### Born:

- 1640: Jacques Ozanam
- 1839: Julius Petersen Ⓟ
- 1866: James Pierpont
- 1888: Alexander Friedmann Ⓟ
- 1915: John Tukey Ⓟ

##### Died:

- 1902: Ernst Schröder Ⓟ
- 1910: Julius Weingarten Ⓟ
- 1948: Marcel Brillouin Ⓟ
- 1970: Sydney Chapman Ⓟ
- 1975: Karl Dörge Ⓟ
- 1990: Tom Cowling Ⓟ
- 2001: Alessandro Faedo Ⓟ
- 2004: Herman Goldstine Ⓟ

#### Quotation of the day

##### From John Tukey

The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data.