Time travel has been part of the popular imagination for long. From science fiction classics like The Time Machine and Back to the Future to contemporary films like Interstellar played on the notion of slipping through time — whether to witness the past, and even be a part of it, or to glimpse the future. […]
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In 1930, a young Indian physicist named Subrahmanyan Chandrasekhar boarded a ship from India to England. Just 19 years old, he spent much of the long voyage working out the mathematics of what happens when a star collapses under its own gravity. What he found was shocking: stars above a certain mass couldn’t stop their […]
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For the past century the biggest bar fight in science has been between Albert Einstein and himself. On one side is the Einstein who in 1915 conceived general relativity, which describes gravity as the warping of space-time by matter and energy. That theory predicted that space-time could bend, expand, rip, quiver like a bowl of […]
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