Noam Chomsky, with his two-ish fields, springs to mind. Asimov and Bertrand Russel might qualify.
It seems, though, that those sparse matrices are largely populated by creative efforts; we see many professors of hard science who are also philosophers, historians or writers, but we seem to have lost the biologist, engineer and composer of da Vinci's ilk.
It seems, though, that those sparse matrices are largely populated by creative efforts; we see many professors of hard science who are also philosophers, historians or writers, but we seem to have lost the biologist, engineer and composer of da Vinci's ilk.