Quote:
Originally Posted by xelasnave
Also now that we have a mass we can work out how far the force of gravity will reach from our black hole and work out being as massive as they have found it to be just how much it influences the rest of the galaxy..... by the inverse square rule no doubt... so how far does its "power" reach out???
Will we feel any attraction here? where will the attraction die off I wonder?
alex  |
Gravity travels at the speed of light, since the object is only 27,000 light years away and since it has been there far longer than us, we have always felt its attraction...at a tried and true 1/r2 dropoff.
Remember, gravity is a very weak force. A simple fridge magnet can lift a paperclip from the surface of the earth, so the magnetic force of this tiny thing is stronger than the gravitational field of the entire earth!
The 1/r2 dropoff means the force at the surface of the earth compared to the force at the event horizon is gazillions
of times weaker.
Cheers
Paul