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In Reply to: RE: Intestellar, not so stellar posted by JDK on September 08, 2015 at 21:33:54
Gravity is the weak force of the four fundamental forces. It is so weak that compared to the strong force, the nuclear binding force, it is only 10 > -40 as strong. My guess is as long as you have NOT reached the horizon of the black hole, gravity is not very noticeable. Even if the black hole is very massive. While the Earth's moon affects tides, we do not notice the Moon's gravity since it's small compared to Earth's gravity. At the center of all galaxies is a supermassive black hole, e.g., billion solar masses. If the gravity of the supermassive black hole was extremely strong at a distance from the center it would suck all of the galaxy into the black hole and the galaxy would not exist, no? But the galaxy is more or less in equilibrium.
http://hyperphysics.phy-astr.gsu.edu/hbase/forces/funfor.html
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