## Mathematicians Of The Day

### 17th September

On this day in William Herschel discovered the moon Mimas of Saturn with his 48 inch reflector. This moon is now seen to have one huge crater, much larger than all other craters of the moon, and this had been named 'Herschel'.

Click on for a poster.

#### Quotation of the day

##### From Bernhard Riemann
If only I had the theorems! Then I should find the proofs easily enough.
Quoted in I Lakatos, Proofs and refutations (Cambridge, 1976).