As an object approaches the speed of light, its mass rises … - Stephen Hawking

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As an object approaches the speed of light, its mass rises ever more quickly, so it takes more and more energy to speed it up further. It can in fact never reach the speed of light, because by then its mass would have become infinite, and by the equivalence of mass and energy, it would have taken an infinite amount of energy to get it there. For this reason, any normal object is forever confined by relativity to move at speeds slower than the speed of light.

Stephen Hawking

A Brief History of Time · September 1, 1998 Verified in 1 source Sign up to see the complete provenance

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About Stephen Hawking

Stephen William Hawking CH CBE FRS (8 January 1942 - 14 March 2018) was a British theoretical physicist, cosmologist, author and Director of Research at the Centre for Theoretical Cosmology within the University of Cambridge.

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Native Name: Stephen William Hawking

Alternative Names: Hawking • S. W. Hawking • stephen • S. Hawking

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As an object approaches the speed of light, its mass rises ever more quickly, so it takes more and more energy to speed it up further. It can in fact… - Stephen Hawking

About Stephen Hawking

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Additional quotes by Stephen Hawking