Galileo, Newton, Maxwell, Kelvin, Einstein, Curie and Borh laid the foundations of modern civilisation. The greater understanding of the universe around us and new technological abilities lifted us out of the middle ages and gave us unimaginable powers over our environment. Physics research yielded many practical results even in Newton's time (such as insight into orbital mechanics - very useful for aiming ships' cannons) and even when the cost went up astronomically during the 1940's the benefits were still so large (winning the war) that nation-states would hand out the required means to do experimentation.