I'm just trying to think of all the one's there have been, so if you can think of any more please list them for me. So far I've got:

Galileo (Astronomy)
Newton (Physics)
Darwin (Evolution)
Mendel (Genetics)
Maxwell (Electrostatics)
Einstein (Special Relativity, General Relativity, Quantum Mechanics)

If you don't know what a Khunian revolution is, it's basically a paradigm change, a paradigm basically being the basis that other theories are formed on. So for instance, Einstein's theory of relativity replaced Newtonian relativity. Newton's theories replaced the ancient God theories, and other theories of planetary motion, kinematics and everything else were built off of that. I'm writing a paper arguing against the notion of Khunian revolutions being common-place for my English class. Any more ideas would be awesome.