Rheology is an enormously far-reaching branch of physics (or physical chemistry) and has a number of different guises.
Dipak K. Sarker
Managing radioactive waste on a national scale.
Could de Broglie's revolutionary idea that an electron in an atomic orbit can behave as a wave have been inspired by a Himalayan singing bowl?
The study and understanding of paleomagnetism has been pivotal in the development of the theory of plate tectonics.