The Big Bang Theory

[hacarey]

Re: The Big Bang Theory

ha ha... i read this thing once, and it said, and i quote " explanations of the big bang usually cause headaches among people who can't program the VCR. this is because the theory states 'a really long time ago there was nothing, and suddenly there was a whole lot of nothing, which was actually something, but nobody could really see it, even if there was somebody there, which there wasn't.' ouch!
"the theory depends chiefly on the early theoretical work of albert einstien, the man who invented the 'bad hair day'" unquote. OMG, WTF this is soooooooo random, and the weird thing is, i understand it!!!

[Tasselfoot]

Re: The Big Bang Theory

laughsitup... this is science "discussion". Keep religion and god out of it. Also, just because you don't have the mental capacity to understand it doesn't mean that it isn't true or that the explanations we have for it currently aren't the closest we can come (until more technology allows us to form a better understanding, if ever).

Also, as far as the smallest stuff... go back and check out the info on Planck. Max Planck discovered that there is a length that is the smallest anything can be. Just like the speed of light is the fastest anything can travel based on E=mc^2, other formulas explain the Planck time and Planck length as being the smallest possible (Planck time is the time it would take 1 photon of light to travel the Planck length).

This probably is over your head, but check out some articles on it:

http://en.wikipedia.org/wiki/Planck_units

http://www.physlink.com/education/askexperts/ae281.cfm <--- simple explanation of Planck time/length

[Reach]

Re: The Big Bang Theory

But the universe wasn't created from nothing. Most people don't really 'get' the theory and just hear a chopped up version from someone else that also heard what they wanted to hear.

You can't destroy energy. It's everywhere. It is absolutely necessary in the construction of the universe, and is essentially what created it. Noone knows what happened inside planck time at the beginning of the universe to cause what happened, but the fact is the universe was not spawned from nothing. There are different theories, like high density fluctuations in vaccuum energy at a point that caused it to just suddenly inflate itself into where the density and such was just right so that it continued to expand, to super strings to a creator (though I mean, a creator is simply an idea not a theory). NOTHING is a pretty hard word to define. What is nothing? Where in the universe can you actually find nothing? Nowhere it seems...an odd thought. XD

It will be interesting to see what they come up with over the next decade or so on the topic and on super strings.

[Grandiagod]

Re: The Big Bang Theory

Of course the universe could not have been created from nothing. The law of conservation of energy forbids it.

[aperson]

Re: The Big Bang Theory

Just because we have the technology doesn't mean we have the capability. Just because we have the capability doesn't mean we have the desire. I believe the sun's death will be our death.

You're giving humanity way too much credit. I'll extend Fermi's paradox and guess that we'll probably kill ourselves off with our own technology before we last long enough for the sun to drop out.



Oh, and to the original poster, you shouldn't even consider asking a question like this until you have the slightest clue what you're talking about. Like other's have said, it's a matter of energy.

If you take every point in the universe to have some energy density u, then integrating that over all space should give you the total energy of the universe: U = int closed,volume[u*dV]. The volume of the universe is expanding, therefore at the big bang the integral consisted of an infinitely high energy over an infinitely small volume... but still equals the same constant U.

What's so hard to believe and follow about this?

Of course the universe could not have been created from nothing. The law of conservation of energy forbids it.

http://en.wikipedia.org/wiki/Zero_point_energy

[GuidoHunter]

Re: The Big Bang Theory

You're giving humanity way too much credit. I'll extend Fermi's paradox and guess that we'll probably kill ourselves off with our own technology before we last long enough for the sun to drop out.

And you're not considering the vastness of humanity. In order for humans to quit this world, every single human being on the planet would have to be killed. This simply isn't feasible by any ordinary means, as you'd have to nuke every square inch of then-habited land. That's not realistic even with a nuclear war. The other way is to remove our source of sustenance: the earth. But again, even with nuclear war, the Earth is too dynamic to allow that to happen. Even with a massive greenhouse effect that could kill off a great portion of the population, there will always be people who survive.

Seven billion of us, and we can survive through thick and thin? Offing us is a pretty tall order.

P.S. Answer my question in your LinAl/manifold thread.

--Guido

http://andy.mikee385.com

[Reach]

Re: The Big Bang Theory

And you're making the same kind of assumption guido. You're assuming we'll never amass anything greater than a nuke. You heavily rely on what is currently possible.

You could definitely kill every ****ing living thing on this planet (excluding micro organisms). Would life spawn again? Well, yea probably. Doesn't mean we would stand a chance.

Hell scratch that. With enough energy you could blow the whole damn thing into pieces. Survive that?

I would hope we don't destroy ourselves, and if we didn't, I can't see something like the sun being our end. Hell, using your principle of how well we are capable of surviving, we could definitely use ion engines or something to slowly shuttle people to another solar system with suitable resources, even thousands of lightyears away, using some sort of preservation tubes with enough green resouces to set up a colony on even a barren planet with no proper atmosphere. And I mean, if that isn't possible billions of years from now I might as well give up since we are almost capable of it now on a smaller scale (mars). Technology is just going to halt this instant! Nothing greater is possible!

I mean, thinking about what will be possible in the future is a very difficult thing to do considering most of what we can think of and imagine is a result of other things we have experienced. A billion years from now things will be so different, if you were to time travel to that time, you would recognize and understand nothing, not even the human race.

[petpro32]

Re: The Big Bang Theory

I agree with Reach. The way things are going, humans will have the technology to travel great distances in space, and to settle on other planets, and we will DEFINATELY have the desire. What will happen when we use up our natural resources, and population is out of control? The planet Earth has a definate lifespan, and i think that it will die much sooner than our sun will.

[talisman]

Re: The Big Bang Theory

wow this topic is all over the place.

getting back to what I think the original poster was asking: we don't have any clue what happened "before" the big bang, nor can we ever (empirically). before in quotation marks because time and space didn't really start until the big bang either.

[mizzfrizz77]

Re: The Big Bang Theory

wow. lotsa opinions. well i guess i'm pretty simple minded and will settle with 'god created it all'. and i heard on tv *damn those education programs!!* that whenever scientist dont have info on a reason y the big bang happened they dont put it in. but then it makes u think about the whole god thing, but i believe in that so yeah i don't agree with the big bang thing

[GuidoHunter]

Re: The Big Bang Theory

The two aren't mutually exclusive, mizz. I believe God created everything and that it then "exploded" and formed our universe.

And please try to use spelling and grammar; your third sentence makes absolutely no sense.

--Guido

http://andy.mikee385.com

[gerbi7]

Re: The Big Bang Theory

Imagine the universe as many charged magnetic particles flying around in random directions, grouped together by their attraction, but separated enough by the equivalent of putting two north ends of a magnet together.


Now, imagine every single particle in the universe existing simultaneously in the same spot. It would make a TREMENDOUS ammount of energy, and to make it worse, we haven't even found any boundary on the universe yet.


Who knows. Maybe God just poped us all into existence while making this fake 'trail' of evidence for our puny minds to try to follow.


Seriously though, It's only a theory. And I don't think the original poster knew much about it to start.

[Grandiagod]

Re: The Big Bang Theory

Who knows. Maybe God just poped us all into existence while making this fake 'trail' of evidence for our puny minds to try to follow.

Along with dinosaur fossils...(sarcasm)

But seriously, it doesn't take a tremendous amount of energy to maintain quantum variables. All the energy in the universe eternally exists in one form or another.

[flamingspinach]

Re: The Big Bang Theory

Is it possible that the universe was never created and always existed, and that redshift can be explained by something other than expansion? o.o Just wondering.

[aperson]

Re: The Big Bang Theory

No we're just a brane that never got the picture and stopped.



Oh and redshift = 1/blueshift I have found god.