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Transcript: The theory of white dwarfs was first worked out by Subrahmanyan Chandrasekhar. Born in India, Chandra, as he was universally known, began thinking about white dwarfs on a long boat voyage to college in England. He experienced prejudice many times in his life, but nothing was more hurtful to him than the scorn that senior astronomers poured on his idea of how white dwarfs worked. But he persevered, and he was proved correct. He was a brilliant theorist, the father to a whole generation of astrophysicists, and the editor of the most premier journal in astronomy for decades. In 1983 he was awarded the Nobel Prize in physics.
Transcript: A fundamental prediction of General Relativity is the fact that time slows down in strong gravitational fields. The ultimate test of this idea would be to observe someone falling into a black hole carrying a clock. In theory, the clock would slow down and come to a complete halt as...
Published 07/25/11
Transcript: Any change in a gravitational field or gravitational configuration causes ripples in space time to be emitted. These disturbances which travel at the speed of light are called gravity waves or gravitational radiation. Pulsars slow down slightly in their periods, and this corresponds...
Published 07/25/11
Transcript: If you throw an object up into the air it will eventually slow down and fall back to Earth. The object is losing kinetic energy by trying to climb out through the gravitational field of the Earth. Photons also lose energy as they climb out of the pit of gravity. This effect is...
Published 07/25/11