MacTutor
Mathematicians Of The Day
25th May
On this day in 1842, Johann Doppler presented a lecture to the Royal Bohemian Society on the Doppler Effect. It was first experimentally verified in 1845 using a locomotive drawing an open car with several trumpeters.
Click on Ⓟ for a poster.
Born:
- 1828: Karl Peterson Ⓟ
- 1903: Leifur Ásgeirsson Ⓟ
- 1919: Raymond Smullyan Ⓟ
Died:
- 1555: Gemma Frisius Ⓟ
- 1676: Johann Rahn Ⓟ
- 1807: Nicolas Vilant Ⓟ
- 1946: Percy Daniell Ⓟ
- 1956: Johann Radon Ⓟ
- 1963: Tommaso Boggio Ⓟ
- 1972: José Sebastiao e Silva Ⓟ
Quotation of the day
From Raymond Smullyan
Why should I be worried about dying? It's not going to happen in my lifetime!
