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J-Hisaishi
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PostPosted: Fri Jan 06, 2006 11:18 am    Post subject: Lets talk about science - Black Hole Reply with quote

Do you believe black hole exist?
What is a black hole?
When we do physics in high school we all know nothing is faster than light, imagine you throw a ball vertically up in air. On earth gravity will trying to pull the ball back and thus velocity of the ball decreases, imagine gravity increases and you need to throw harder and harder so the ball can ESCAPE from gravity, eventually when get to the point where the ball need to faster than light speed(escape velocity) and gravity is close to infinite, Black hole appear, in other words, nothing can escape from black hole since its gravitation is infinite not even light can escape. Scientist believe( include me) time will pause inside black hole, whats beyond it? we're not sure. Some black hole is as big as our solar system. Do you believe time travel and black hole are related?

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Concinnity
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PostPosted: Fri Jan 06, 2006 11:30 am    Post subject: Reply with quote

doesn't time just slow down?

altho, thikn about life.....

if light has a delay, even a slight delay, then wouldn't everything we see delay further, it'd just keep building up.......??

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PostPosted: Fri Jan 06, 2006 11:37 am    Post subject: Reply with quote

haha black holes

they've alwasy been a fantasy to me Smile

as in, what lies ahead once you enter one. well scientifically its been said yeh nothing happens, you're just a goner.

but how cool would it be if it was a whole new world on the otherside... Wink
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PostPosted: Fri Jan 06, 2006 11:47 am    Post subject: Reply with quote

this is only happen inside black hole, if light delay inside black hole (eventualy when gravity gets bigger light can not escape out from black hole) so is time, you are right, but infinite gravity does not go beyond black hole, its only happen inside, I think inside black hole is another dimension compare to out current dimension.

Imagine a ball travel at speed of light, since black hole has infinite gravity, it pulls the ball back with same speed as light (or mabe greater). Remember nothing is faster than light, thus time pauses.

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Concinnity
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PostPosted: Fri Jan 06, 2006 8:12 pm    Post subject: Reply with quote

hmmmm, light lagging? kinda sounds like ym 56k... Laughing
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PostPosted: Fri Jan 06, 2006 9:04 pm    Post subject: Reply with quote

IF time travel were possible, the bill gates found a way to do it. Its just logic that if you found a way to travel back in time, t he first thing you would do is make yourself rich and then to become a knight. Bill Gates has found a way to travel through time.

Thinking about black holes is so depressing and weighs so heavily on the brain. Go outside :p

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CCJc
Hmmm...


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PostPosted: Fri Jan 06, 2006 10:06 pm    Post subject: Reply with quote

Good topic, but someone really needs to graduate ASAP and away from the all the researches and text books, IT CAN DISTROY YOUR LIFE...

btw, black holes are just a centralised condensation of matter that just grows as atoms-> particles cluster together. Forming a large body of mass

Of course gravity just keeps increasing at a steady speed, making its strength ever growing, hence infinity =P

There is no other world out there, sorry Kouri =P But you'll be squashed into tiny particles that things wont ever see the life of day again =(

And about slowing light down, that "may" be true, although it wont ever affect you, and cant be harnessed universally. Time deviates around different places that havent been properly studied since our own environments are limited =]

Btw, you cant turn back time, thats just not possible, it shouldnt be anyway, things are always moving, whether you move them backwards or towards, doesn't necessarily mean you're turning back the hands of time, you're just changing its vector direction.
By changing time to go backwards, it would scientifically mean you're taking energy and reversing how it behaves, and its not humanly explainable at this stage


so boys and girls, imagine all you want XD

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Concinnity
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PostPosted: Fri Jan 06, 2006 10:26 pm    Post subject: Reply with quote

and of course, the thing that terminates all posibility of going back in time...

the device u'd be using wudn't have been invented back then..... Wink Laughing Surprised

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transistor
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PostPosted: Sat Jan 07, 2006 2:29 am    Post subject: Reply with quote

is time travel in the first plave anyway? have you guys heard about the "mad scientist" contradiction? and if you think about it how can be somewhere in 1700s when u r born in 1900s? well if you consider the possibilty of parallel world then it might be the case

hhmm i think i got a bit too complicated and depressed, time to go out :p

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kkfc01
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PostPosted: Sat Jan 07, 2006 1:05 pm    Post subject: Reply with quote

let just forget about getting "squashed into tiny particles"

when u travel on (or is it IN?) a blackhole, and u look outside
time should appear to move slower
but time does NOT go back, just slow~~~~~~~er

but once u are at the centre of the spirial, well.........i've no idea
all i can say is u are no longer moving anywhere at that point
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Concinnity
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PostPosted: Sun Jan 08, 2006 11:18 am    Post subject: Reply with quote

well i suppose if it slows down... then everything around u, outside the black hole would be a lot 'faster', or having time travelling normally....?
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CCJc
Hmmm...


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PostPosted: Sun Jan 08, 2006 11:40 am    Post subject: Reply with quote

Concinnity wrote:
well i suppose if it slows down... then everything around u, outside the black hole would be a lot 'faster', or having time travelling normally....?

yeaaahhhhhh...its called relativity, read up on it

http://www.astro.ucla.edu/~wright/relatvty.htm

basically you choose which frame of reference you want to stand on. What may slow down for you or appear normal to you may not necessarily appear normal speeds compared to other frames of references

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Concinnity
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PostPosted: Sun Jan 08, 2006 7:51 pm    Post subject: Reply with quote

well, i think i was babbling on into my own world, so relativity doesn't explain my point.....

but, relativity, would be like, 2 cars speeeding down a highway and seeing what speeds they travel at, depending on which car ur traveling at..... hmm... or that might be..... disposomething...

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CCJc
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PostPosted: Mon Jan 09, 2006 12:44 am    Post subject: Reply with quote

Concinnity wrote:
well, i think i was babbling on into my own world, so relativity doesn't explain my point.....


If it doesnt contribute anything to the topic of discussion is there really a point in posting?
Simple answer...you wouldn't~

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MachV
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PostPosted: Mon Jan 09, 2006 1:48 am    Post subject: Reply with quote

I've always believed in the scientific theories of black holes.
One of my favourite theories is:
A black hole does indeed pull everything into itself and absorbs is, including light and time. then if tow object where in space and one was being pulled into a black hole while the other stay stationary watching the first obeject. From the perspective of the second object, the first object would appear to slow down in aceleration the closer it got to the black holes epi-center, and never appear to actually enter the black hole, even after the first obeject had long pasted the event horizon.


Which brings me to my favourite black hole theory of all time:

Given the law of cause and effect: ie every action has an oppoiste reaction. And given the theory of a black hole absorbs everything including time and light. The somewhere out ther in the vastness of the multi-verse. There has to be an opposite. Ie a "white hole" that spews out both time and light. So esentially a black hole may be acting as a one entrance to a worm hole. It could aslo be the background for a time travel theories.

Even though according to theoretical science disproves the theory of white holes, (well it doesn't disprove it, it jsut proves the ther should be any in existance). I still like this idea of White Holes and there is alot that science still needs to learn and discover.

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MachV
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PostPosted: Mon Jan 09, 2006 2:07 am    Post subject: Reply with quote

CCJc wrote:

There is no other world out there, sorry Kouri =P But you'll be squashed into tiny particles that things wont ever see the life of day again =(


Now now CC. Remember wehn it comes to spacial science & theories. 90% is thoery based on physics as we know it. Which is more than likely wrong. Since the futherst we have been into to space is the earth's moon, I think it is more than likely that our scienctist are worng. We can only judge it on the physics the we have on and around out planet and solar system. when you look on the grand scale of things, is it a tiny tine tine spec of dust in the universe let alone the multi-verse (yes i know i am a sad little geek that liek to believe that there is more than one universe in existance). So what is to say that the physics that we know as to be fact for us, is the same in the rest of existance. We could be a freak solar system the defies the universal laws of physics. Remember that for every rule there is the exception. Think about it this way accroding to physics, with the body mass, wing span and wing speed, there is no physical way that common bumble bee should be able to fly, but hey whatta you know it does.


CCJc wrote:

so boys and girls, imagine all you want XD

See that is the beauty of theoritical science, everything stats with the imagination!

ps
kouri wrote:
as in, what lies ahead once you enter one. well scientifically its been said yeh nothing happens, you're just a goner.


It's not that you are a goner it is more teh theory that you become part of the singlarity that created and became the black hole. Kinda like the Human Instrumentality Project in Neon gen.

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kkfc01
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PostPosted: Mon Jan 09, 2006 4:18 am    Post subject: Reply with quote

MachV wrote:

Given the law of cause and effect: ie every action has an oppoiste reaction.


i'm being picky here~ but how does cause & effect relates to action & reaction??

or are u thinking about chain of reactions???

and i'm a bit skeptic about time travel~ (love the idea though!!! how doraemon and nobita + friends could travel around time)

ASSUMING u need energy to achieve time travel, but then u will need to do work, which has to come from an engine/machine
and to do that, u need to muck around with entropy, the engine/machine must convert "less random" into "more random" in order to produce work

this "more random" must then go somewhere which i ASSUME is the universe~

so while the traveller is attempting to travel BACK in time (the less random state), s/he is making the universe even more random
isn't there a contradiction?? (and yes, this argument is only for backward time travel, doesn't really work for forward)


MachV wrote:
Now now CC. Remember wehn it comes to spacial science & theories. 90% is thoery based on physics as we know it. Which is more than likely wrong. Since the futherst we have been into to space is the earth's moon, I think it is more than likely that our scienctist are worng. We can only judge it on the physics the we have on and around out planet and solar system. when you look on the grand scale of things, is it a tiny tine tine spec of dust in the universe let alone the multi-verse (yes i know i am a sad little geek that liek to believe that there is more than one universe in existance). So what is to say that the physics that we know as to be fact for us, is the same in the rest of existance. We could be a freak solar system the defies the universal laws of physics. Remember that for every rule there is the exception. Think about it this way accroding to physics, with the body mass, wing span and wing speed, there is no physical way that common bumble bee should be able to fly, but hey whatta you know it does.


i agree with your point
my view is that all theories can only be falsify, but never proven to be right
in fact, there was never a definition of correct-ness
the idea is that if no one can disprove a theory, then it got to be correct
so when one reads about a theory, there should be a tag saying "yet to be proven wrong!!"

btw, if anyone interested, search for Karl Popper+Falsification
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PostPosted: Mon Jan 09, 2006 12:42 pm    Post subject: Reply with quote

as requested by ccjc, i'm not posting on this thread Smile have a good time making breakthroughs!
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PostPosted: Sun Jan 15, 2006 11:36 pm    Post subject: Reply with quote

MachV wrote:
Given the law of cause and effect: ie every action has an oppoiste reaction. And given the theory of a black hole absorbs everything including time and light. The somewhere out ther in the vastness of the multi-verse. There has to be an opposite. Ie a "white hole" that spews out both time and light. So esentially a black hole may be acting as a one entrance to a worm hole. It could aslo be the background for a time travel theories.


I always liked the concept of a 'white hole' also - the absolute oposite of a black hole. If we assume for a moment that there is more than one universe, the black-white hole relationship could be some sort of gateway between universes. Which I guess would also mean that while the black hole uses an insane amount of gravity to compress anything that gets caught inside, the white hole would therefore (as its opposite) involve anti-gravity that would effectively do the opposite. So would light be sucked out a white hole at the speed of light, or, impossibly, faster?

To prove against the validity of this possibility, consider the theory that the universe is expanding. If black holes are sucking out matter in the universe, how can it be expanding?? If anything it means one universe is getting sucked into another.

On top of that, I don't even know if anything I just said made any sense whatsoever. Laughing

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