According to the current cosmological theories, it's the model that explains the early life of the universe, starting from a rapid expansion of hot and dense matter.
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1answer
159 views
Are there any theories or suggestions for how the multiverse came into existence?
I've just seen a documentary about the multiverse. This provides an explanation for where the big bang came from. But it leaves me wondering: how did the multiverse come into existence?
Because this ...
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2answers
191 views
How to concile flat spacetime and big bang?
After reading How do we resolve a flat spacetime and the cosmological principle? I still remain perplex.
Please excuse my ignorance and try explaining to me :
I thought that basically, when we ...
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1answer
75 views
How do we know space is expanding when we are part of space? [duplicate]
From what I understand space itself is expanding, and the Big Bang attempts to describe this expansion at the very early stages of the universe.
This is usually described in a visual way as 2 dots on ...
1
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0answers
46 views
Is the speed of light the ultimate speed limit? [duplicate]
As we all know nothing can go faster than the speed of light as mentioned by most of our pioneer's in physics. But as I was listening to one of the statements of Sir. Stephen Hawkins he stated that at ...
1
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0answers
186 views
Curiosity episode with Stephen Hawking. The Big-Bang
In an episode of Discovery's Curiosity with host Stephen Hawking, he claims the Big Bang event can be explained from physics alone, and does not require the intervention of a creator.
1) His ...
1
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0answers
48 views
What evidence is there for the Big Bang Theory? [duplicate]
Possible Duplicate:
What has been proved about the big bang, and what has not?
I know the expansion of the universe is the most compelling but what else makes it so well liked and believed. ...
1
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4answers
536 views
Atoms pop out of nothing/vacuum/pre-big-bang?
I saw a great documentary last night about 'nothing'. It's about vacuums, and how if you have a total vacuum atoms will pop out of nowhere! Pretty crazy stuff. Atoms literally coming out of ...
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1answer
65 views
What is the age of universe? [closed]
As we know at the time of big bang as mentioned by the scientist the universe expanded faster than the speed of light. So does it mean that at that time all the particles present travelled in the time ...
0
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1answer
46 views
observation and implied time since creation
I read on a post
Big Bang and Cosmic microwave background radiation?
We detect light from another 13 billion years ago does this mean that one billion years ago we could only detect light from about ...
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2answers
290 views
Does the Big Bang need a cause? [duplicate]
Possible Duplicate:
on causality and The Big Bang Theory
Asking here in layman's terms..
When theoretical physicsists discuss the origin of our Universe, the wider consensus appears to be ...
0
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1answer
74 views
Explanation for the notion that physical laws break down at the Big Bang
I've often heard the phrase "physical laws break down at the big bang".
Why is this? Divide by zero?
Please provide the mathematics.
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1answer
105 views
Particles entangled after the big bang
Is that true that the big bang caused the quantum entanglement of all the particles of the universe so every particle is entangled to each other particle of the universe?
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2answers
159 views
Big Bang Anybody? [duplicate]
Possible Duplicate:
Did time exist before the creation of matter in the universe?
on causality and The Big Bang Theory
I was recently watching a Discovery special on the Big Bang theory, ...
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1answer
170 views
Is it a goal of modern physical theory to avoid big bang singularities and how do they approach the problem?
During discussion on another question, the question of singularties in modern physical theories arose. The big-bang is an obvious singularity in modern conceptions of the cosmos. Is it a goal of ...
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1answer
60 views
Why is the Big Bang the biggest explosion in the universe?
What makes the big bang the biggest explosion in the universe?
Why even should such an explosion ever happens?
Through what process and how does this amount of energy get released as a big bang?
Are ...
0
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1answer
85 views
Is it possible that a black hole sucks energy that is the origin of another universes big bang?
The universe expanded from nothing, right? And black holes may be a "gate" to parallel universes, is it possible that stars that is being sucked in by black holes in our universe may be the origin of ...
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1answer
52 views
Can anything come out from the big bang?
If any configuration of matter can fall into a black hole and hit the singularity, and ditto for the big crunch, and there is time reversal CPT invariance, does it mean anything can pop out of the ...
0
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1answer
73 views
Is the spacetime interval between the Big Bang and a given event dependent only on the time component?
My thinking is this - at the time closest to the Big Bang when physics doesn't break down, the universe would have had a volume that was still very close to zero. If that were so, wouldn't the space ...
0
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1answer
147 views
Did space and time exist before the Big Bang? [duplicate]
I accept the Big Bang theory. What I can't understand is how there can be a where or when to the Big Bang if space time did not exist prior to it. Did space and time exist prior to the Big Bang?
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1answer
72 views
How to understand movement in expanding universe?
I know that universe is expanding equally between every pair of points but it was a single point in it's very past... so I was wondering if we could locate this center point of universe. Now I know ...
0
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3answers
125 views
Accelerating expansion of the universe and cyclic model
So I've heard that recent observations indicated that the rate of expansion of the universe is accelerating. Does this indicate that the universe can NOT be cyclical, with an infinite series of big ...
0
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1answer
52 views
The Univere's mass-energy and uncertainty [duplicate]
A virtual creation with total mass-energy = $E$ is allowed as long as that virtual creation doesn’t last longer than $E/h$. Can the uncertainty principle also be used to estimate the mass-energy in ...
0
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0answers
26 views
Where is universe expanding? [duplicate]
According to many physicist space, time and universe came to existence after the big bang. The universe is now expanding since after the big bang continuously. So my question is where our universe id ...
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0answers
105 views
Did force of gravity cause macroevolution?
Did big bang create gravity?
What role gravity is assumed to have played in the formation (starting from the big bang) of large structures of our universe and what other important physical mechanisms ...
0
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0answers
35 views
What's a compact scientific answer to question “(Why there is) / (what is before) the Big Bang?” [duplicate]
Possible Duplicate:
Did spacetime start with the Big bang?
on causality and The Big Bang Theory
Before the Big Bang
What's a compact scientific answer to question "(Why there is) / ...
0
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0answers
50 views
Energy can't be created or destoryed? [duplicate]
Possible Duplicate:
Conservation law of energy and Big Bang?
If energy can't be created or destroyed then how did the big bang create energy? and if energy can't be created then does that ...
0
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0answers
29 views
Can neutrinos be the dark matter [duplicate]
Possible Duplicate:
How do we know Dark Matter isn't simply Neutrinos?
If there are primardian neutrinos and since they have some mass however low, could neutrinos form the dark matter ...
0
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0answers
429 views
Was the Big Bang a result of a decayed white hole singularity? [closed]
From my understanding, the Big Bang is theorized to have been a result of matter ejecting from a decayed white hole space/time singularity.
...
0
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2answers
181 views
Simplifying the explanation of a low-entropy Big Bang
The claim that the young universe was in a low-entropy state seems at odds with
maximal entropy being thermal equilibrium, and
the young universe being in thermal equilibrium.
I've looked at some ...
0
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1answer
391 views
Can the Universe create itself?--Is Gott's Use of CTC in Planck time or less valid?
My question is the title of a 1991 paper by Richard Gott and Li-Xin Li:
http://arxiv.org/abs/astro-ph/9712344
and is also a subject of his popular book, "Time Travel in Einstein's Universe"
Ultimately ...
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votes
2answers
90 views
How exactly, or whats the process, rather, of energy changing into matter?
$E=mc^2$ this is the equation by Einstein claiming energy can change from energy to mass. this would happened at the big bang I assume, when electrons and protons were made to create hydrogen and some ...
-3
votes
1answer
79 views
Which was first, energy or matter in the creation of our universe?
Was it the Big Bang or was it something else that gives us our universe in its present condition?
Did it all begin with just pure energy that eventually evolved into simple atoms of matter, that ...
-3
votes
2answers
123 views
Is this a great flaw in big bang theory? [duplicate]
Einstein said that, Time & Space cannot exists without one another. Big bang says, time didn't exist before the big bang. So the Primordial ball referred in the Big Bang theory didn't had any ...
-3
votes
0answers
33 views
Can cold low entropic “little bang” be described? [closed]
Please can anyone help? I have an idea for a low entropy process I considered while trying to model protein folding. I am not a mathematician, so I am having trouble describing the concept.
I need ...
-3
votes
0answers
44 views
Where the speed of light is constant how big bang evolve per time? [closed]
I mean where the $\frac{dc}{dt}=0$ how could world evolve by time during big bang?
How is time evolution of energy possible where the velocity of light doesn't vary by time?
-3
votes
1answer
106 views
why gravity exists? [closed]
I always have a doubt on gravity , why does gravity exists ?
is there any scientific explanation on gravity ?
I know that Gravity exists , i can feel it. But Who is creating all these rules ?
...
-6
votes
1answer
72 views
Were the numbers too created at the time of Big Bang? [closed]
It is said that everything was created at 'Big Bang', including mass, electric charge, time and even empty space. All of these have specific properties (like gravitational constant has a specific ...
