Mathematicians Of The Day

23rd April

On this day in 1827, William R Hamilton presented a paper on optics, Theory of systems of rays, to the Royal Irish Academy while still a 21 year-old undergraduate. It is in this paper that Hamilton introduced the characteristic function for optics.

On this day in 2014 Google released a Planck doodle.

Click on for a poster.

Quotation of the day

From Max Planck
If anybody says he can think about quantum problems without getting giddy, that only shows he has not understood the first thing about them.