u83rn00b said:did u no if a black hole came into contact wth the earth, all our molecules would expand causeing us to all be strechted out. for example, ud be like 20 yards tall, ur hands would be waaayyy up ther! wut a cool way to die.
fasterthanjoao said:The intense gravitational field would rip us apart (very quickly you wouldn't have any... recognizable human features left!) and we'd be peeled down to another single layer of atoms on the 'surface' of the black hole.
u83rn00b said:did u no if a black hole came into contact wth the earth, all our molecules would expand causeing us to all be strechted out. for example, ud be like 20 yards tall, ur hands would be waaayyy up ther! wut a cool way to die.
I really don't see any physical meaning of size here.russ_watters said:It can be useful to talk about the radius of the event horizon as being a "size" since we don't really know what is going on inside it and it generally doesn't matter anyway.
My point is that that the r-coordinate in the usual Schwarzschild coordinate chart does not represent a radial or any other physical distance. For instance the size of a black hole is most definately not [itex]\frac{4}{3} \pi r^3 [/itex].Wallace said:I think that is Russ's point MJ, that it's pointless to try and talk about the size of the 'singularity', but what you can talk about for black holes is the radius of the event horizon, which does depend on the black hole mass and hence allows black holes of different 'sizes'.
Wallace said:Semantics!
Wallace said:Semantics!
Wallace said:Semantics!
Teresa said:going back to the death thing... if u went ova a blck holes event horizon, ur atoms would b ripped apart, as the gravitational difference between very small distances is so great... ie. the front of ur atoms would b traveling faster than the back of ur atoms and hence would b ripped to pieces... its not a nice way 2 die, but at least ud b going out with a bang =P
A black hole is a region in space with a gravitational pull so strong that nothing, including light, can escape it. This creates a dark, mysterious object that is invisible to the naked eye.
Black holes are formed when a massive star dies and collapses under its own gravity. This causes the star's core to become extremely dense and compact, creating a black hole.
If you were to fall into a black hole, you would experience a process called "spaghettification". This is when the gravitational pull of the black hole is stronger at your feet than at your head, causing you to be stretched and ripped apart.
Once something enters a black hole's event horizon (the point of no return), it cannot escape. This includes light, which is why black holes are invisible. However, some particles are able to escape through a process called Hawking radiation, but this is a very slow and rare occurrence.
Yes, there are three main types of black holes: stellar, intermediate, and supermassive. Stellar black holes are formed from the collapse of a single massive star, intermediate black holes are larger than stellar black holes but smaller than supermassive black holes, and supermassive black holes are found at the center of galaxies and can be millions or billions of times the mass of the sun.