William Clifford

was born 172 years ago

4th May 1845

**William Clifford** studied non-euclidean geometry arguing that energy and matter are simply different types of curvature of space. He introduced what is now called a Clifford algebra which generalises Grassmann's exterior algebra.

*Find out more at*:

http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Clifford.html