Mathematicians Of The Day

1st February

On this day in 1673 Gottfried von Leibniz, during his first visit to London, exhibited his calculating machine to the Royal Society.

Click on for a poster.

Quotation of the day

From Werner Heisenberg
We will have to abandon the philosophy of Democritus and the concept of elementary particles. We should accept instead the concept of elementary symmetries.
Quoted in E Maor, To infinity and beyond (Princeton 1991)