/sci/ - Science & Math

did the universe really come from nothing? some people say it's a quantum fluctuation, but doesn't that require a quantum field to operate in and quantum mechanical laws, both of which can hardly be called 'nothing'?

>Suppose x is not in m for some maximal ideal m. Then x and m generate the unit ideal (1)...

Why? I don't see how this is forced.

If the big bang theory is and the universe was created from a enormous explosion. Then how is it possible that an explosion occured if there was no air?

Hey, /sci/

I'm making a small video game, basically a strategy game about building a universe by creating laws, reactions, building elements and stars etc. and I'd like to have it at least a big scientifically accurate.

I have a few questions:

Can light be created easily with the simplest nuclear reactions, and can it be easily spent (i.e. destroyed)?

What are some different theories on the origin of the universe (rivals of the Big Bang) that follow the standard model of physics?

Were the forces of nature in action during/shortly after the Big Bang? How intensively? What about Newtonian physics?

What kind of origin of the universe does the "steady state" theory imply? How much does it inferfere with the standard model, other than the whole thing about new matter being created?

Thanks to whoever could answer these.

What caused the big bang?

Is there any evidence, besides mathematical ones, that the Universe popped into existence because of the big bang? And are there any other alternative ideas that are just as plausible, just not as popular? What was the general idea before the big bang theory?

Here's one thing I don't understand (and you probably do), wouldn't everything at some point collapse into one object because of gravity?

I know the Universe is expanding/stretching and all, but the two ideas are contradictory (right?).

How can you be so sure that big bang happened even it's only a theory? It really isn't an absolute truth it is as probable as the other theories.

http://www.youtube.com/watch?v=1HBkZPyfpdE
what do you think of this my fellow /scientists.

Big Bang is a stupid name for such an important event.

Tthe universe has always existed since there can be no such thing as a time before time.

I have this theory that the Apollo missions were faked when NASA found out that general relativity was wrong because the Earth was expanding due to the Sun's iron core being influenced by magnetic waves from the electric universe after being perturbed by Planet X and thereby causing global warming.

Any Britfags watching Horizon:Before the Big Bang? On BBC 2?

before there was nothing, there was nothing. but that nothing was always something and became nothing. this is the origin of the universe

Was reading something on the web or in one of my Science books but I can't quite remember where, anywho, aparrently when the Big Bang started the Universe was VERY hot and it's getting colder and colder by the minute, wouldn't we be able to radiocarbondate the universe to find out EXACTLY when the Universe was created? I'd understand there would have to be something that's in possibly prime condition(wood, leather,etc) that hasn't decomposed at all. But I know this could very well be impossible.

Dear Evolutionists,
Please explain to me how it all just "came to be" if the first law of thermodynamics stats this:
Energy can be neither created nor destroyed. It can only change forms.

I get this question alot when arguing with religionfags. "What started the big bang? How could there be absolutely nothing and then all of a sudden there was something hot and dense and started expanding?"

I heard from somewhere that this can be explained with quantum physics. That something actually CAN just be created out of nothing...

If there was nothing before big bang, who created nothing?

Christians 1 Atheofags 0

What are the possibilities that prior to the Big Bang there was another universe with other galaxies, stars, planets and races?

Dear Universe,

You are all a massive disappointment. I should never have had kids in the first place.

Yours sincerely,
The Big Bang

Hello, /sci/.
I have no formal training in science, but I've always been very interested in it, and I have a question that I was hoping you could answer in terms that I can handle.

It concerns time, and the big bang. Essentially, I'm wondering how exactly time works. I understand that it's relative to the observer, but in reality, how does this apply? What factor is it dependent on?

Also, if the mechanics of time apply only because of the properties of the universe that was created prior to the big bang, what does this mean for the period before it happened? I understand that the universe came from a very "hot, dense" state, but how would that state occur if time wasn't progressing beforehand?

Thanks

Can anyone think of a hypothetical reason on why everything exists and how it was created? Or is it beyond human ability to even imagine something like this.
Current explanations are basically.
1. Big Bang made everything (scientific)
Problem: What caused the Big Bang? What was before the Big Bang?

2. God made it. (religious)
Problem: Who made God?

3. We are in a virtual reality.
Problem: How does the virtual reality exist?

This is all speculative ofcourse, but can anyone think of a way to explain everything without these type of problems?

If it can relate to the universe, then it is a part of the universe. If it cannot relate to the universe, then it is irrelevant.

This means that, if you were somehow able to step outside the universe and observe it, it never expanded. Its not changing at all.

This means that the universe is a static object. Not actually changing at all. All time and space is laid out as a map might be in this 'static object'.

Thoughts?