As author of A Brief History of Time, subject of the film “The Theory of Everything” and one of the best-known living physicists in the world, Hawking’s pop culture recognition is immense. Recently, Cambridge made his 120-page 1966 dissertation “Properties of Expanding Universes” available for free download, and it initially crashed their servers. The dissertation discusses gravitational radiation, singularities (regions of infinite density and zero volume) and other “implications and consequences of the expansion of the universe.”

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