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The Big Bang


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The Big Bang

  1. 1. The Big bang and the universe<br />
  2. 2. The Beginning<br />10-20 billion years ago<br />There was nothing<br />Singularity-thought to be origin<br />Appearance of a ball of mass<br />Hydrogen and a little helium<br />
  3. 3. The big bang<br />Expansion NOT Explosion<br />Trillionth-Trillionth of a second<br />Imagine balloon expanding instead of popping<br />First proposed by George Lemaitre <br />
  4. 4. What happened next<br />Slower expansion<br />Cooling, appearances of forces and particles<br />Radiation, x-rays, radio waves<br />Packets of gas<br />Formation of galaxies and planets<br />
  5. 5. Evidence<br />Background microwaves<br />Universe still expanding<br />Universe had beginning<br />Theory of Relativity being proven<br />Abundance of lightest elements<br />
  6. 6. If expanding, must have a beginning<br />Nothing can travel faster than light<br />Gravity distortion of space and time<br />Theory of Relativity<br />
  7. 7. Road trip<br />Scale of universe based on light years<br />
  8. 8. Structure is a hierarchy<br /> Voids<br />Sloan Great Wall<br />Dark Matter<br />Structure <br />
  9. 9. What we still don’t know<br />Where the singularity came from<br />What caused initial expansion<br />What will happen?<br />Big Rip<br />Big Crunch<br />
  10. 10. Our solar system<br />
  11. 11. Got gas<br />4.56 Billion years ago<br />Explosion of supernova<br />Collapse of nebula<br />Nebular hypothesis<br />
  12. 12. The sun<br />Gas from collapse of nebula concentrates<br />Conservation of Angular Momentum<br />Becomes hotter and denser as spins<br />Start hydrogen nuclear fusion<br />White Dwarf<br />
  13. 13. Terrestrial planets<br />Mercury, Venus, Earth & Mars<br />Gases condense into rocky material<br />Rock and metal debris come together<br />Become larger and increase gravitational pull<br />
  14. 14. Jovian Planets<br />Jupiter, Saturn, Neptune, & Uranus<br />Gases condense into ices<br />Ices come together<br />Capture leftover gases<br />
  15. 15. Motion<br />Tilted 90 degrees<br />“Bouncing” through the galaxy<br />217.215 k/s<br />226 Million years<br />
  16. 16. You are here<br />Milky way galaxy<br />Spiral arm<br />Solar system located on Orion arm<br />It’s difficult to tell exactly where<br />Constant expansion<br />Instead, described as when<br />
  17. 17. Websites<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />Media<br />NASA, Merging Galaxies, Cosmic Collisions - GPN-2000-000912, July 15 1999 via Wikipedia, public domain<br />NASA, Sig05-16, September 15, 2005 via Wikipedia, public domain<br />NASA, Einstein Cross, September 13, 1990 via Wikipedia, public domain<br />NASA, Sig06-005, January 11, 2006 via Wikipedia, public domain<br />NASA, Cassini-Science-br, February 25 2006 via Wikipedia, public domain<br />Rrinsindika, Solar system a, September 5, 2009 via Wikipedia, creative commons attribution-share alike<br />Luc Viatour, Full Moon Luc Viatour, October 7, 2006 via Wikipedia, creative commons attribution-share alike<br />Magicknight94, Asteroid_1, October 17, 2009 via Wikipedia, public domain<br />Miketsukunibito, Comet c1995o1, May 10 2005 via Wikipedia, creative commons attribution-share alike<br />Brian0918, terrestrial planet size comparison, October 14 2009 via Wikipedia, public domain<br />Urhixidur, Gas Giants and the Sun, August 8 2004 via Wikipedia, public domain <br />