- The Chicago Astronomer -
Copyright 2004-2014 All rights reserved by Joseph Guzman Administrator/Founder/Chief Astronomer.
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Black holes are thought to be concentrations of mass in a point called the singularity where the gravity is so great that acceleration exceeds the speed of light, the surface of that distance being called the event horizon. That makes them black because light never leaves them, so we on the outside can't see them.
I'm interested in the experiences of three friends of mine, LuluBelle, Fred, and Charles. Lulu's orbiting far enough away that the relativistic effects of gravity can be safely ignored. Fred is free falling at the event horizon, and Charles is free falling a third of the way from the event horizon to the singularity.
What do each of these three people see or experience?
If the universe is a ball the size of America, then the solar system is almost as large as the smallest cell in the human body.