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Black Hole Facts


When the star ten times more massive than our own Sun, explodes (Supernova) it leaves behind the strangest phenomenon in the Universe. The Black Hole. After explosion what is left behind is heavy core of subatomic particles, a Neutron Star. It can be very small, but with enormous density. Scientists calculated that approximately one teaspoon of Neutron Star would weight around billions of tons. The gravitational pressure of this highly dense object is so large that it can bend fabric of time and space. This theory is based on Einstein's proposition that space and time are woven together in a flexible fabric. Massive objects like Sun warp the fabric of space and time and pull smaller objects like Earth. Very large Neutron Star can warp time and space fabric so much that it could create a hole where gravity is so strong that not even light could escape. Black Holes are pulling everything around them closer to the center of the hole. In some sense black holes are creators of the galaxies since they are pulling planets and stars towards the spiral center. Each galaxy has a Black Hole and occasionally galaxies collide together because of the gravitational pull from the larger black holes. It is expected that in 5 billion years Andromeda galaxy will collide with our Milky Way galaxy.



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Mr. Logic
Tanya wrote:
Aj wrote: #
Can anyone give me more information on black holes? I need to type up an eight page paper on black holes -_-

All the information about black holes can be found at www.hubblesite.com > Explore Astronomy > Black Holes > (Watch the intro if you want or just skip it) > Black Holes Encyclopedia > Click on the links for the info


EXACTLY im doing a report, and, yes thats a ll i used. got 50 notecards outaaa that site
Mr. Logic at 02:50PM, Jan 21st 2013.
Chups
SOME HELPFUL TIPS !!!!You get the jackpot cglhaenle after hitting the triples 7 s seven times and then you have the chance to win 50,100, 250, or a random number of coins from the spinner. (personally i have never got lower than 250).**The easiest way to get to the jackpot cglhaenle and move your ship up the map is to fill up the coin slots with about 80-90% of your coins. Don't worry about dropping coins off the pusher because you'll be winning enough stuff to keep all the coins moving.****GLITCH IN THE GAME*****by filling up the holes past the 6 spots in the slots queue, usually putting at least 3 or 4 more in, will cause the slots to spin incredibly fast and almost immediately stop. This allows for less time waiting for a spin to end and will greatly increase your winnings. I've won the jackpot cglhaenle in as little as 15 minutes before. So bottom line overfill the coin queue !Also, don't exchange any of your treasures until you have the maximum 9 sets, otherwise you simply would not be getting a very good exchange deal. **Very important***Only exchange treasures during jackpot cglhaenle winning because the walls will stay up and this will allow you to keep most or all of what you exchange for instead of watching it sadly fall of the platform.From what I've read, if you push the little pirate ship that randomly floats across the screen you either get a treasure or some other type of coin. I'm not quite sure if pushing it just increases your luck of getting something or actually makes you get one.For when the PUSH button pops up, press it as fast as possible until the walls moving across the slots come all the way together and stop flashing, then STOP ! If you continue to do it after they have closed or in the case that you don't push it fast enough for them to come together, and start moving apart, you will end up just putting down lots of coins.*From what i can tell the push button and floating ship is completely random.Also, i have the Android version and the Ipod version. The Ipod version seems to have the pusher moving much faster than the Android and that makes the game much faster to play and win. THe Android version seems lag a lot more and be more glitchy. I'm not sure if this is just my experience or applies to everyone.And to address the new update !The coming soon has finally arrived and it is another set of prizes just referred to as items, but they work much differently than treasures. As you move along levels, you can unlock the ability to get another item. Also, you can only receive one of each item (so if you get another one, it just disappears). With these you make sets, getting one thing in each category. Once you get there you receive some sort of special prize such as the slots hitting the triple 7 s three times in a row.Well, thats all i can think of right now, but i hope it helped ! (:
Chups at 06:21AM, May 3rd 2012.
RX5801
I see what you are saying. I have to agree with the concept of white holes, but I subscribe to the multiverse thoughts-not sure about my feelings of worm holes.

As for your thoughts, I don't think that active stars can collapse or fall into the singularity. As long as the electrons are able to fight off being combined with each other. After that, then all bets are off :)

I suppose that the masses of black holes are dependent on the mass of the star that that created it. I wonder though, since gravity is connected to mass, than all the matter getting swallowed up could add to the singularity?

I also completely agree that the holes would strip down matter into the smallest size, but that would add to the mass also, i think:)

I'm not sure about Hawking radiation though. hard to imagine something with so much power evaporating
RX5801 at 04:10AM, Apr 25th 2012.
c.brankin@yahoo.co.uk
keep makeing these videos because their very interesting facts about stars in space and planets c.brankin@yahoo.co.uk
c.brankin@yahoo.co.uk at 07:13PM, Apr 23rd 2012.
Anon.
Well that is what Stephen Hawking theorizes, that somewhere/when there are "White holes" spewing out all that mass that a black hole devours but I don't really like the idea of a gravity induced singularity or wormhole existing inside of blackholes.

It only makes me wonder than;
-Why don't we observe matter seemingly appear out of "nowhere"?
-Why don't blackholes shrink much faster since they are technically -applying an infinite force to push themselves through this hole?
-And at what magnitude of gravity is a singularity produced?
-And why aren't there stars seemingly disappearing through singularities they should be able to produce?

I prefer to think that the matter consumed by a black hole, doesn't go anywhere. Ever.

I would argue that the immense gravity would tear apart atoms, protons neutrons, even the muons, and quarks, into their most basic building blocks possible, and then just stick them together, held by that gravity, perhaps even crush them smaller. I say this because, bigger blackholes, are heavier blackholes so it would make sense to say that the mass isn't going anywhere except for "Hawking Radiation".

Then given that assumption, it would be sound to go as far as to consider a blackhole as a singular atom of insane size and mass, as well as its own element, existing out of sheer force.

Now while this one is more out there, its thought provoking none the less. I don't doubt that wormholes exist, but they just don't in with the idea of a black hole to me.
Anon. at 12:08PM, Apr 23rd 2012.
RX5801
You're right, dark energy and matter have been kind of considered a force that would count act gravity(?) so then it could be pushing us apart rather than slowing down and possibly stop our expansion.

I am not sure we will know what is actually going on. Will we end in a deep freeze, will it end in the 'big rip', or even fire if gravity can force the(known) matter into fusion?

dark matter is very interesting to me. Some galaxies rotate faster then they should with their given amount of mass. There is something unknown in that equation:)

I suppose it could also be attributed to the size of the black holes that seem to be in the center of them. The more mass, the faster the rotation. This can be observed from the speed of the stars that 'orbit' around the hole.

What about white holes? makes sense that the stuff consumed by the hole needs to go someplace right? If we want to bring in the concept of the 'multiverse' i guess we would have that answer huh...

I wouldn't worry about the telescope. I'm just a space nerd with too much time on their hands!
RX5801 at 05:28AM, Apr 19th 2012.
Anon.
RX5801 wrote:
Anon. wrote:
termenator wrote:
do black holes have the strongest gravity ever...i wonder


I never thought that the expansion of the universe is gravity driven. If an object in motion stays in motion until it is acted upon by an outside source, then perhaps the universe is still 'coasting' from the initial energy from the 'bag bang'

I wonder if the area on the edge of expansion has any items that could cause friction or any other interaction that could slow down the universe?

Gravity is dependent on mass and proximity. I am not saying that there is no way that it is causing the expansion, but if we are being pulled towards something with such mass that can influence our universe, it would really have to be something quite impressive :-)

But, a thought occurred to me, what if the mass of our universe pulling us rather then something pulling it? What if we are actually stationary but everything is is being pulled around us. It would give us the impression of our own motion right?


An interesting idea but the issue with the universe expanding from its current momentum is that that gravitational pull of the masses in our universe should have over powered said momentum.

The universe is supposed to be shrinking under the idea that gravity is trying to pull everything back together.

However the universe continues to grow despite this, and it is currently being theorized that "Dark Energy" exists and is some crazy thing that is pushing the universe apart and acting against the natural pull of the mass of the universe.

Some scientists have even gone so far as to say the expansion of the universe us *increasing*.

Regardless, I have no telescope and astrophysics lab to tell you if that is true or not. But thats what I heard.
Anon. at 12:15AM, Apr 19th 2012.
RX5801
Anon. wrote:
termenator wrote:
do black holes have the strongest gravity ever...i wonder


I never thought that the expansion of the universe is gravity driven. If an object in motion stays in motion until it is acted upon by an outside source, then perhaps the universe is still 'coasting' from the initial energy from the 'bag bang'

I wonder if the area on the edge of expansion has any items that could cause friction or any other interaction that could slow down the universe?

Gravity is dependent on mass and proximity. I am not saying that there is no way that it is causing the expansion, but if we are being pulled towards something with such mass that can influence our universe, it would really have to be something quite impressive :-)

But, a thought occurred to me, what if the mass of our universe pulling us rather then something pulling it? What if we are actually stationary but everything is is being pulled around us. It would give us the impression of our own motion right?
RX5801 at 06:05AM, Apr 10th 2012.
krishnasai
my view is that this blackhole is oa solid substance in which a kind of material which contain's magnetic property.
krishnasai at 04:10AM, Apr 9th 2012.
RX5801
"Hawking Radiation" can cause a black to shrink and eventually not have enough mass to distort space-time.

My question though, is the mass going into the black hole. I imagine a highway traffic jam. So it's not a matter of how much matter it takes in, but rather the time in which it takes in. What happens to the 'backed up' matter?
RX5801 at 03:15AM, Jan 14th 2012.
Anon.
termenator wrote:
do black holes have the strongest gravity ever...i wonder


Nope! Because if they did our universe wouldn't be expanding.

However, gravitational "strength" is directly proportional to mass, so what you are really asking is;

Are there things heavier than black holes?

And I dunno, there could be. Technically as far as we know a black hole can grow indefinitely, or if it runs of matter to absorb it shrinks.

Who knows?
Anon. at 04:38PM, Jan 13th 2012.
termenator
do black holes have the strongest gravity ever...i wonder
termenator at 08:44PM, Jan 9th 2012.
MAX
superb!
MAX at 06:24AM, Jan 4th 2012.
jacob micheal
Mr Logic wrote:
It's all Theory, the only time some thing like a black hole can be a fact is when some one can vist one and do tests.


heh.. that's cute. You cannot visit a black hole, its gravity is too great.
jacob micheal at 06:24PM, Dec 20th 2011.
MAX
It is recently discovered by CERN scientists that some neutrinos were found to travel faster than light. Then is it possible to tavel faster than light and escape the black holes gravity
MAX at 10:36AM, Oct 22nd 2011.
Georgie
I see a black hole everytime I pull down my pants and bend over
Georgie at 09:35PM, Oct 17th 2011.
John Sauve
The 'Event Horizon' is a term that is confusing.
This is the point that light can no longer escape.
it may have little to do with objects inside.
In the Andromeda Galaxy there are new Blue stars within one light year of the Black hole.
There may be little information on the speed of rotation as this Galaxy is still a long way of, in spite of being the closest spiral Galaxy.
Just as the Sun has a Surface, the Black Hole will probably have a surface, but not necessarily at the 'Event Horizon'
What do we know of the orbits of these Blue Stars near the Black Hole? What do we know of the accretion disc that surrounds the Black Hole?

Einstein correctly predicted that light from a distant star would bend twice as much as would be predicted from the gravity alone. Thus we do know something about the Gravity of light. It may not be stated clearly just yet.
The General Relativity equation should be useful.
John Sauve at 11:17AM, Sep 12th 2011.
Mr Logic
It's all Theory, the only time some thing like a black hole can be a fact is when some one can vist one and do tests.
Mr Logic at 02:21AM, Sep 12th 2011.
freya
black holes exist and are very interesting
freya at 01:45AM, Sep 6th 2011.
RW
There are a few things that we should look at in this discussion and accept as fact. The first is, yes, light does have mass. Can we actually measure it? Not yet. But the same could have been said about electrons years ago.

Everything that has mass has gravity. these things, no matter how small, have an impact on the fabric of space-time. the black hole is this concept taken to the extreme. as to explain the way we detect black holes, we do it through indirect observation. We look at the speed of objects that orbit the hole. We can go back to Newton and see that the closer an object is to the object with more mass, the faster it orbits.

Another fact is that black holes , at least at their creation, release gamma ray bursts. We can detect this.

We should also recognize the 'event horizon' of a black hole. If an object is inside this radius, it would most certainly be doomed. However, outside of this radius, the object would still be under the influence of the hole's gravity, but not so much as to seal it's fate.

So, yes we believe that there are black holes at the center of many galaxies. However, galaxies or not uniform. Irregulars exist that do not orbit a center of mass. And to believe that the centers of spirals,lenticulars, ect, are being pulled into the black hole is not entirely correct.
RW at 04:59AM, Jul 17th 2011.
John Sauve
Light does respond to gravity, thus does have mass.
When Einstein postulated how much light from a distant star would bend when passing the sun, it was twice as much as would be explained from Gravity alone.

Supernova remnants may sometimes be a Black Hole.
This would be considered a small Black hole.
The center of our Galaxy is 30,000 light years away and is a much larger Black Hole.

This has Mass and is gradually drawing more stars and other matter into itself. Even though light can not escape this section of our Galaxy is rotating. The most dense portion with the highest rotation is in the center.

Excess energy is sent out in a perpendicular direction as x-ray beams. It is by studying these x-ray beams that we find out more about the Black Hole.
John Sauve at 11:45AM, Jul 15th 2011.
ham
i meant its not proven that light have mass. but possibly something yet to be discovered.
ham at 02:53AM, Jun 24th 2011.
ham
Sabrina wrote:
G mac wrote: #
i dont understand why its so hard to understand everything has mass even light,the more mass the more gravity, gravity attracts anything with mass, once a sun gets so large its own gravity causes it to implode its gravity becomes so great it even sucks in light everything it sucks in will add to its mass and gravitional pull its not a door way in space or a time portal its simply an object with such a large gravitional pull it sucks in everything even light and crushes it adding to it





Light is not matter, so it has no mass and it does not take up space. It IS, in fact, interesting that light is sucked into a black hole. You can not measure the mass or volume of light.

If you can, please tell me what the mass of light is. Also the volume, and the density. It would be greatly appreciated. Also, would you include how you did it?


well.. then how come it is affected by the pull of black hole.if it doesn have any mass it should easily be able to pass through it ( hell !! it should be able to light up the black hole).so my point is may be its proven if that light does have mass but you cant say that it doesnt either. unless you can explain the affect of black hole to it.
ham at 02:50AM, Jun 24th 2011.
Nick
the sun is a white hole in a sence
Nick at 01:19PM, Jun 19th 2011.
Sabrina
G mac wrote: #
i dont understand why its so hard to understand everything has mass even light,the more mass the more gravity, gravity attracts anything with mass, once a sun gets so large its own gravity causes it to implode its gravity becomes so great it even sucks in light everything it sucks in will add to its mass and gravitional pull its not a door way in space or a time portal its simply an object with such a large gravitional pull it sucks in everything even light and crushes it adding to it





Light is not matter, so it has no mass and it does not take up space. It IS, in fact, interesting that light is sucked into a black hole. You can not measure the mass or volume of light.

If you can, please tell me what the mass of light is. Also the volume, and the density. It would be greatly appreciated. Also, would you include how you did it?
Sabrina at 12:11PM, Apr 10th 2011.

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