If you were to throw a person into a black hole, would you actually see him cross the event horizon? Explain.?
917183
The event horizon is place at which you can see light (people?) entering but you cannot see anything beyond that.  Maybe it's 1cm wide.  Maybe it's much less.  Maybe it's variable.  In any case, you cannot see *ANYTHING* that happens beyond the event horizon.\n\nTherefore, if you tossed someone toward a black hole, that person would hit the event horizon on the way in. If you had a fast enough camera you could take pictures of the person traveling through the thing.  \n\nYou'd be taking pictures and taking pictures and--suddenly--you'd take a picture which showed everything from their shoes up to half their head.  The other half would have crossed over the event horizon.  It would be gone.  \n\nAnother picture might show the person from shoes to shoulders but everything further on would be gone as if it never existed.  No blood.  No gore.  Just part of the person, the part still on your side of the event horizon.  \n\nAnother might show them from shoes to waist, then to their knees, then just the soles of their shoes.\n\nIn the next photo, that person would be gone.\n\nGone.  As if they never existed.  Gone into a black hole, a singularity where gravity is so massive that not even light can escape.\n\nIf you think all that means being able to actually see the person cross the event horizon, then yes, you can see it happen.\n\nWe need more and better science to test the theory, though.\n(-;
358053
Intense gravity. It just sucks everything nearby up. If you went into a black hole gravity would be stronger at your feet than at your head. You sould be stretched out like a piece of spaghetti and broken in two. Then the same thing would happen to the pieces of you. The bottom of the pieces would break off untill you're just a bunch of little tiny pieces.
151381
The gravity forces between his head and his feet will be very different while he gets closer to the black hole, and this will make him strech like a spaghetti. Many other things will happen, but surely he will not live to see them.\n\nAfter many billon years, maybe his mass transformed in energy will come out of the Black Hole in the form of radiation, called Hawking Radiation.
178554
goes in the black hole ->O.\nonce past the point of Singularity which is believe to be much smaller than an atom's nucleus. then past the event horizon where time becomes irrelevant. and if that something is still in 1 piece, then it should come out to the white hole O->.
125575
Good question - there are so many places a black hole can take you. For one, to your death. A black hole is a "gravitic" (is there such a word even?) pull in space that attracts everything including light. It is said that the force from within the black hole is so strong, that if a person were to enter a black hole - they would be ripped apart or quashed to death. Something like that. I'm not really sure, coz' I've never been into a black hole... =p\n\nThe other idea is, a black hole is actually sort of a teleporter or waypoint from one part of the universe to the other. It's like walking through a door only to find yourself on the other side of the world. If that's true, then the black holes are just shortcuts for us to access any part of the universe in a split second. Unfortunately, no one dares or wants to gamble their life by jumping into a black hole (which also by the way, the nearest could be a couple of light years away). Besides, if you entered a black hole and found a cooler planet on the other side - would you want to come back? I think not.\n\nSo it boils down to this - do you think that you can jump through a black hole to appear on the other side of the universe? Find a new world? Or do you think you'll be torn to pieces? The choice is yours. For now, there isn't a definite answer. But think the Bermuda Triangle and you've got your answer... =p
264247
It creates a black hole.
800705
I don't believe it has ever been proven one way or another. The event horizon has never actually been observed. But it would appear by the way the outer arms of a spiral galaxy move in a clockwise direction, the same might hold true for a black hole, but when time itself stops, and gravitation as we know it is warped, anything is possible.
585530
its hard to explain blackholes since no age of man can witness the change of a star to a blackhole. While energy of a human being cannot be destroyed, it is only transformed into a different energy.
495476
Thats correct, merely a song. A sun couldnt esist in a black hole. It would be ripped to shreads in seconds!
931135
If you died in a spacesuit and didnt go into a blackhole then yes.
246486
I'm sure physicists around the world ponder these questions on a daily basis.\nFirstly,astronomers believe that there is a super-massive balck hole at the center of our galaxy, the Milky wave. Through spectrometric measurements, they have shown that the large amounts of gamma rays emitting from it are due to the huge chunks of nearby stars and matter that it sucks in each second. It is believed that this matter is absorbed by the black hole and compressed into nothingness. However, some believe that some of this matter (including people) could be transported through some sort of tunnel into another part of space\n\n2. No one knows for sure if wormholes exist. But if they do, it could provide a way to travel faster than the speed of light like in star trek or other shows, the so called "hyperspace".\n\n3. Yes, if you dug through the earth, you'd emerge into space, with nothing under your feet. If you were to travel in such a "hollowed-out" tunnel, as you approach the center of the earth, the gravity would gradually decrease until it would be zero at the exact center. If you drop a ball into this tunnel, it would oscillate forever, assuming no air is present, like a spring with simple harmonic motion since the gravity is a function of depth.
653575
got sucked into a black hole!
195816
actually scientist have a lot of theoretical knowledge of black holes. \n\nYou would fall until you were at the center(in a finite amount of time from your frame of reference), at which point you would be compressed almost to nothing. An outside observer would still be able to see you though for a while and things would appear stretched.  try wikipedia's entry on black holes. http://answers.com/black_hole\n\nRepeat? Where's the original?
636436
As much as Sci-Fi wants it to be something exotic, I'm afraid there is no "other side" to a black hole.\n\nImagine an atom of normal matter. Most of it is empty space. But it takes a great deal of pressure to compress it --- more pressure than is usually available. But if we concnetrate enough mass, the gravitational force will be strong enough that the space can be compressed. Protons (positive charge) and electrons (negative charge) will be pressed together to form neutrons (neutral charge). This happens in the core of very large stars at the end of their life. Their last stage of fusion produced iron at the core. When enough iron exist at the core, it suddenly collapses as I've described here. It then forms what is called a neutron star. If it is oriented just right with respect to the earth, it also appears as a pulsar (Internet search: pulsar +star +radio).\n\nThe neutron star is extremely dense. But there is still a force exerted by the neutrons which keeps the compression from going any further. But what if the mass was large enough to overcome that force and squeeze it even smaller. It appears that once this happens, there is nothing left to stop the compression and it continues until the object takes up no space at all, which is why it is sometimes called a singularity. It is a point in space with a huge mass and therefore extremely strong gravity.\n\nAll objects exert a gravitational pull on other objects. And therefore all distort space and bend the path that light takes. But this new object is so compressed that near it, the gravity is so strong that the path of light beams are looped back and cannot leave the object. Since no light can escape from it and anything nearby falls into it and disappears, it is called a black hole.\n\nMoving out from the black hole, we finally find a distance where light can barely escape. The line that divides where light can and cannot escape from the black hole is called the event horizon. It is not a "surface" of the black hole as there is nothing there. It is merely the distance at which the gravity drops enough that light can escape. If you could build a camera and drop it though the event horizon, nothing would change as it went through. No difference would be recorded. However the radio transmission from the camera would cease as radio is the same as light, just a different frequency. Once the camera went past the event horizon, it would no longer be able to transmit the pictures to you. The radio waves would loop back and head into the black hole. There are also some strange things that happen to time as you cross the even horizon, but you can run an Internet search to find out more.\n\nBecause it has compressed to the point of not taking up space, conventional physics expressions for matter no longer make sense in this environment. You end up with fractions where the volume or distance is in the denominator (lower half of the fraction) and therefore the fraction has an infinite value --- which doesn't make sense. So we can't really project what is going on inside. But the idea that it is a portal to other dimensions is more SciFi than science. There are some esoteric theories that guess about such things, but they are guesses. \n\nHope this helps\n\nIf you are interested in astronomy, try \nhttp://groups.yahoo.com/group/lunar-observing/\n\nChuck
414187
Yea, entering a black hole might not be the smartest idea...unless you like being compacted into a space smaller than your fingernail.
230892
...a black hole is it is not really a hole...you should be able to go behind it, in front of it, and so on...for example leading scientist know think that the center of our galaxy is a black hole...now you can see that there is something on the otherside of it...the galaxy is not cut in half with us only waiting for our end...it is simply a piont in space in with nothing can escape (check first reference)\n\nthe word "black hole" was coined by scienctist john wheeller (sorce #2)...it was basically science shorthand...then hollywood got a hold of the name and behold...people now think there is someting on the other side...some magical land were unicorns and wizards breath\n\na black hole is what left after a star at least 10x the size of our sun uses all the energy ...after which the star goes super nova, then it becames a black hole (#3)...\n\nlong story made short...what is behind a black hole...most likely another star...then another...then another\n\nwhat would happen if  you tried to go trough a black hole...you would be crushed and then you would die
1166146
Yes........more or less. A Black hole is a small view of what the universe as a whole will be like billions of years from now.