Aaaaaahhhh!!! My brain hurts?

Question

Our science teacher said we'd start talking about the universe and the Big Bang theory next week. I overanalyze stuff sometimes, so today in studyhall, i started thinking about what we're going to learn.
My thought:
If there was nothing before the Big Bang, how can "nothing" explode to form the universe.
A black hole rips apart matter until it's one atom...i think. So, maybe a black hole played a part?
Could the universe be a continous cycle: A black hole "consuming" everything, until there's "nothing", and then 'imploding' or exploding all of the matter?
That would explain a lot to me really.

All of the stuff I just said is my basic knowledge of space and time. I'm in eigth grade, so nothing confusing.

Oh, also...how does a black hole form: how does a "hole" get in the vacuum of space? I think it has something to do with a long-dead star, but i'm not sure.

Thanks so much. Sorry for so many questions.

And also...sry...How can we be sure that space continues forever? That wouldn't make sense...matter must eventually run out, no matter how much there is...

I am soooo confused. I hate my over-analytical mind that thinks about stuff that will never effect my life...
Thanks

Don't answer for the points. I want an answer, not someone asking ME the question. Sry, but i really have been obsessing over knowing all day. I would really like a good answer, if there is one.
Thanks.

I also just looked up the big bang theory.
It says the universe emerged from an immensly hot and DENSE state.
Black holes are immensely dense, now that i think about it. Now my brain hurts more.

Thank you all for the answers so far, this is really helping. I sorta had a feeling that it wasn't etched in stone, but I was hoping I could find some answers, and I did! :) Keep answering, I need all the help I can get!

P.S. Yes, I will visit the school library ASAP!

Answer 1

First of all please accept my congratulations for taking the time and making the effort to learn. We need more young people like you..!

You're not alone in your questions about how our universe started. The best minds in science have been trying to solve that mystery for a very long time. So far there's no definite, etched-in-stone answer.

"...how does a black hole form..."
You're already on the right track with this one when you said it has something to do with a dead star. Here's a simplified description of how it works -- All stars exist due to nuclear fusion in their cores. The enormous temperature of stars is constantly trying to blow them apart while at the same time their gravity is trying to squeeze them into a smaller sphere. The two forces exactly cancel each other, so the star is stable. They start out by 'burning' hydrogen, and when that's all gone they start fusing the next heavier element. When that's
gone they go on to the next heavier element. Finally the time comes when there's nothing left to fuse but iron, but the star can't generate enough internal heat to do that. This means that fusion stops, the star cools way down, and gravity takes over. In less than a second, the entire star collapses in on itself (..'implodes'..) and blasts much of its mass away into space. The remaining star stuff continues to implode though until its gravity is so immense that nothing, not even light, can get away from it. Because no light gets out these stars can't be seen, thus the name 'black hole.' There's not really a hole in the vacuum of space, just an area occupied by the black hole.

Keep up the good work Bunny..! Come on back to Yahoo Answers if you need more help.

Answer 2

Big Bang: a place where mass was packed very tightly. One day it exploded and a black hole couldn't have made it explode, it just couldn't have.

And for the universe being a continuous cycle? No way. A black hole never ever lets anything out of itself.

How does a black hole form? Well, when an item, let's say a planet, has the gravity field of a massive star, it creates a black hole. It's actually impossible, but it's a way to explain it.
Another way to explain it, for Earth to become a black hole, it has to be the size of a pea with the gravity force it has now.

I know this is hard to understand, but it's the best way I can explain it. And why don't you just check out a few books on black holes from the library? They have valuable information. It's way easier to read a book than a web page.

Answer 3

Welcome to the wonderful world of cosmology, where things are just weird.

We don't know anything before the Big Bang. We have something called Planck-time - the first 10^-42 second - before that we can't explain it. Nor do we know how all the mass got to such a small point.

If you think that the universe expands and then contracts, that was an earlier theory. But, we can't find enough mass in the universe for the expansion to slow down, and eventually reverse.

A black hole is a remnant of a very massive star. Old stars that have burnt out their hydrogen end up in one of three ways:

Under 1.4 Solar masses - White Dwarf
Under 3.2 Solar masses - Neutron Star
over 3.2 Solar masses - Black hole.
(this is Chandrasekhar's Limit)

Answer 4

It was created by God. He created a Vacuum and added charged particles. Space is Vacuum not as Einstein predicted pressure.The planets due not put pressure on space.( General Relativity ) Was a theory. Vacuum Relativity is the right answer.In a Vacuum Universe that came to rest at zero inches of vacuum makes for a perfect working Universe, where particles can be charged and uncharged.The Earth works by Hydro-Magnetic energy. In a Vacuum Universe. black holes can form, that are greater in vacuum of a smaller space within or by a massive mass planet that has lost it's inner energy.( Einstein was a very smart man, If he was alive today I am sure he would agree on findings)

Answer 5

Good one Bunny Slippers. Yes, the Universe could be a "black hole" from which nothing can escape. But we are so far from the centre of gravity in it that we don't actually notice. There are all sorts of speculations about this, one is that the net energy of the Universe may be zero, which means the net mass of the Universe is also zero. It's just in localised places you get heavy stuff like galaxies and galactic clusters.

If you call the potential gravitational energy of one galactic cluster in relation to another positive and the kinetic energy gained if they start falling together negative, (or the other way about) you can see how some of the energy cancels out.

Answer 6

I'm confused about this stuff too.. And I believe that many scientists are confused even more when they are trying to think of this all..

Big Bang theory is actually a theory of nothingness. There was nothing that exploded. And there is nothing inside an atom. When you keep cracking the pieces of atoms even smaller you'll find...

So what is life?.. It's nothing. So nothing = what ever you make of it!

That was my version of it. :-P

And abot black holes you can find here:
http://en.wikipedia.org/wiki/Black_hole

Shortly.. Black hole is an ex star that collapsed and became small very tight and heavy object made of pieces of atoms. It is so heavy that nothing can escape from it. Not even light and that's why they are 'black'

And here ismore of this mind bending stuff:
http://en.wikipedia.org/wiki/Time-space

Some how I feel that this is not helping at all.. :-D
Hope you find what you are looking for!

Answer 7

The big bang theory really says nothing about how the universe was created. In other words, it says nothing about the bang or its cause or what came before. It only takes the observed expansion of the present day universe and tries to extrapolate back.

Answer 8

Intelligent design requires an Intelligent Creator/designer.
i.e. a house,an engine, an eyeball, the human ear
u could shake the parts of an engine around in a bt tub for a billion years and still all the pieces would never come together in Working Order.
That's why it's not makin sense in ur brain.
Science has proved Creation.

Answer 9

Compound angles blended with multifaceted surfaces, jumbled mutually with some various transitioning radius's. and then attempting to translate that right into a three-D good CAD kind. provides me a brilliant headache, even though it truly is a incredible extra desirable experience of alleviation while i ultimately resolve it. :)

Answer 10

why