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Physics, Astronomy & Cosmology / How to measure Black Holes?
« on: 07/11/2009 03:49:11 »
What technique is used to measure the radius of the event horizon of a black hole? Is there any formula? If so, then please let me know.
Secondly I would like to ask whether the event horizons are of the same size for all black holes or they are of varying sizes: some big and some small?
Finally, I would like to ask whether it would be wise for Newton, if he were a member of this forum, to publish his laws of motion here or somewhere else in the internet (such as blogger)? What I'm asking is how safe it is to publish catastrophic theories (not hypothesis) in the internet? Can Newton get rid of the thought of someone stealing his 'Principia' ? What should I do if I make some discovery?
Secondly I would like to ask whether the event horizons are of the same size for all black holes or they are of varying sizes: some big and some small?
Finally, I would like to ask whether it would be wise for Newton, if he were a member of this forum, to publish his laws of motion here or somewhere else in the internet (such as blogger)? What I'm asking is how safe it is to publish catastrophic theories (not hypothesis) in the internet? Can Newton get rid of the thought of someone stealing his 'Principia' ? What should I do if I make some discovery?