Hilbert spaces, etc.

Friend of Hermann Minkowski, teacher to Einstein, who showed that the latter's special theory of relativity can be represented geometrically as 4-D spacetime called Minkowski spacetime.

Stole corpses and dissected them. Wrote a big book on anatomy in 1543, debunking a number of Galen's suppositions.

His anatomy book was published the same year as Copernicus' heliocentric model, marking 1543 as a big year for science.