Thursday, April 25, 2013

04/25/2013 Quiz


  1. What is a black hole? An object that has a gravitational field that light can not escape.
  2. What  would it be like to visit a black hole? It would be very interesting.
  3. Do black holes really exist? Yes
  4. What causes gamma ray bursts? A collapsing star.
  5. What is in the center of the milky way? A large black hole. 
  6. What is the mass of the object in the center of our galaxy? 4 million solar masses.
  7. Who was John Michell? An English geologist and philosopher.
  8. Who was Pierre-Simon Laplace? A french mathematician and astronomer
  9. Who was Karl Schwarzschild? A German physicist 
  10. What is the Schwarzschild radius of Earth? 8.869 mm
Hint: Search for black holes in Wikipedia

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