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Black Holes

Black Holes. Sara and Jordan. What are Black Holes?. Remnants of former stars Star begins to collapse on itself. Shrinks to zero volume (infinitely dense) Place where ordinary gravity has become so extreme that it overwhelms all other forces in the universe . Inside a Black Hole.

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Black Holes

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  1. Black Holes Sara and Jordan

  2. What are Black Holes? • Remnants of former stars • Star begins to collapse on itself

  3. Shrinks to zero volume (infinitely dense) • Place where ordinarygravity has become so extreme that it overwhelms all other forces in the universe

  4. Inside a Black Hole • Tidal Forces • Stretch a person the closer to the center you get • You can see out no one can see in • No light escapes a Black Hole

  5. Outside Looking In • Looks like time has stood still • Reasons • Pass the Horizon • Radiation a person emits hovers at horizon • keeps image for an infinitely long time

  6. More about them • Has “Event Horizons” • Boundary of Black Hole • A person can pass through • Once crossed, there is no coming back • To escape, a person needs to move faster than light

  7. Space time is distorted • Coordinates describing radial distance and time switch role • Invented by John Archibald Wheeler

  8. Theories • Age • Move just outside Horizon then leave • People have aged but you have not

  9. Universe within Black Holes • Wormholes • Enter in through a black hole, come out a white hole • Doesn’t collapse into a single point • Tunnel between universes

  10. In a Black Hole • A universe within a black hole • The Black Hole is in another Black Hole

  11. Why they’re black • So dense that no matter - including light- can escape

  12. Works Cited • http://cosmology.berkeley.edu/Education/BHfaq.html • http://hubblesite.org/explore_astronomy/black_holes/home.html • http://news.nationalgeographic.com/news/2010/04/100409-black-holes-alternate-universe-multiverse-einstein-wormholes/

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