They are not really tiny Hanae. Well, comparing them to other stellar bodies, they are... but in the scheme of the universe, everything else is small.

Now, the reason we can't measure black holes directly is do to all information being sucked into it, not the size of the object. The red line in the black hole representation indicates where all information gathering stops (not drawn to scale, yeah).

And we don't know that black holes exist by the absence of information... black holes were a mathematical prediction. When matter/light does not cross the event horizon (invisible line of no return), there is still a pull on everything around it, which distorts the matter/light. So, we can only "see" black holes from the interactions of everything around it: such as, the massive stars at the center of our galaxy, which loops around an invisible object.



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"Officially, this machine doesn't exist, you didn't get it from me,
and I don't know you. Make sure it doesn't leave the building."

The size of a black hole is dependent solely on its mass. You can calculate the radius of its event horizon from its mass, which can be found by measuring the way in which light and other bodies curve around it.

maybe because you,re an idiot...and i mean that as nice as possible...



no thats where you are wrong, using infinite is kinda tricky here, thats the problem when you talk about physics without using math.
what a black hole is, is an object in space time that is "cut off" from the environment. that means no light (and hence everything else, like information) can escape it. the density doesnt have to be infinite. if the earh had a radius of 9mm the denisity would be so high that not even light could escape its gravitational field..that makes it a black hole.

Um, I think that it only means thatif we, um... squeezed the Earth so that it has a radius of 9 mm, it would be so thick that it would become a black hole. But it doesn't mean that the black hole which would appear would have a 9 mm radius... I can't find a source to prove it and it's just what I think... but I think that the actual size of a black hole can't be measured and their "size" is just how strongly they suck in matter

yes yes : ) .. i never wanted to make any statement about the "size" of a bh....its a kinda tricky thing, as the pic above shows, theoretically it all comes together in a sigle point called the singularity.
my point is only in refrence to the question at the beginning...if we make the earth,s radius a tiny bit bigger than 9mm then we,d have light circling around it..which is kinda cool o.o
actually now that makes me wonder what our perception of the world would be like if the light would be influenced like that...heh

Does studying black holes actually help anyone??

It does; it can save certain people from boredom

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Whichever one you want, though the usual/classic one is Strunk and White, and I'd go for any of those 'cause EB White is an awesome author, knows what he's talking about, and it's the one I have 'cause used editions can be found for dirt cheap. But, for a current and utterly useful style book, I'm a huge fan of Ann Stillman's Grammatically Correct.


The labs are totally awesome.

thats a very close minded question. science exists for itself, it doesnt need a justification.

but if you really want one, there are many. studying unknow objects such as a bh might give you insights into new laws of physics, and even tho you might not see the purpose of those laws right away, pretty much everything becomes "usefull" (whatever you mean by that) sooner or later.
e.g. since we,re talking about general relativity, only becauase of that theory we do know how an information signal behaves when it travels brom the earth to a satelite. without the general theory of relativity GPS would not work, because the "classical" laws would calculate you a wrong position.

if it wasnt for ppl studying stuff that has no evident application, we,d still be living in caves...more or less.

Does trolling actually help anyone??

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It helps the troll population.

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If the sea were made of Whiskey and I was a duck
I'd swim to the bottom and never come up

That rarely needs any help

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"It is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science."

Thanks

Again, wish I was that lucky


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There are times when you will miss what you never had. I wonder how you will find what you so desperately need.

It cures syphilis, supposedly.

and Aids. Don't forget Aids.


...but it also gives you cancer D:

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Everyday I'm tumblin'