In The Eighteenth Century It Was Often Convenient To Regard Man As A Clockwork Automaton. In The Nineteenth Century, With Newtonian Physics Pretty Well Assimilated And A Lot Of Work In Thermodynamics Going On, Man Was Looked On As A Heat Engine, About 40 Per Cent Efficient. Now In The Twentieth Century, With Nuclear And Subatomic Physics A Going Thing, Man Had Become Something Which Absorbs X-rays, Gamma Rays And Neutrons.
