M-theory is a cutting-edge theory of physics that deals with the extension of superstring theory. It is somewhat contentious in the physics community, as it lacks empirical evidence. If ever experimentally verified, M-theory and string theory would represent remarkable advances in science.
M-theory has been the target of increasing skepticism as some (notably Peter Woit and Lee Smolin) argue that string theorists have overstated many of the theory's strengths while underplaying its weaknesses
Unlike more conventional views of creation in modern physics, that are Ex nihilo, the M-Theory vision, although not yet complete, is of the whole observable universe being one of many extended 4 dimensional branes in an 12 dimensional spacetime. Although branes similar to that representing our universe can co-exist in the theory, their physical laws could differ from our own, as could their number of dimensions. Some proponents of the theory now believe that a collision of two branes may have been responsible for the Big Bang.
thats said...
The big bang was not an explosion of matter; it was an explosion of energy
Using Einstein’s equation E=MC2 mater and energy are interchangeable. We have already turned mater into energy so the reverse would also be true.
The mater in the universe was transformed from the energy of the big bang.
2007-03-10 23:01:10
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answer #1
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answered by Anonymous
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Big Bang is a bit misleading, it's more like a big expansion (which is still continuing today) than an explosion. The theory is that all the matter in the universe was in the form of energy (matter and energy are transferrable), which was contained in a singularity, an infinitely small point of immense temperature and density. The fact that the universe is expanding, and the discovery of the CMB (Cosmic microwave background - this is what causes the static on an untuned tv or radio) goes some way to proving this. However, it is unlikely that anyone will ever know exactly what happened or what came before.
2007-03-10 22:44:05
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answer #2
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answered by Madfan 3
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The word nothing is purely a human invention - lets face it the number zero has only been around for a few thousand years.
So if we put to one side for a nanosecond the finite human understanding of man-made nothing/zero and concentrate on spacial nothing which is mostly made up of energy of one sort or another, nothing equates to something .
In short nothing is something just waiting to happen,arguably no bigger than a nothing as we know it - and why shouldn't a nothing be capable of a total something in less than the blink of an eye? ie a new dimension.
To approach any understanding of the big bang one must first stop asking what exploded and accept the concept that literally "Nothing" cataclysmicly exploded and left us where we are now.
I realise that for some this may be a hard concept to get ones head around but a disciplined mind will help.
2007-03-11 11:22:59
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answer #3
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answered by treving 42 6
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It was said to have come from the Primordial atom.
MASS is constant in the universe. Never more, never less, has always been here, can only be converted from one form of atomic structure to another.
It is believed this mass either accidentally formed a signgularity (gravity well) or was drawn into an existing singularlity (black hole). This is the Big Crunch theory.
A singlarity can be anywhere from the size of a moleclue to a Red Gaint start (much bigger than our star) and it contains ALL the mass of the universe being dragged into the center by MASS attraction (gravity) that is SO strong it pulls at 186,000 miles per second (Earth's gravity is 8 MPS).
Thus the MASS attraction (gravity) is SO powerful that light can't except (black hole).
This keeps compressing and compressing and compressing until there is a lack of "space" between atoms, electrons, protons, neutrons and interal radiation (gamma rays) start the process of fusion going inside this mass (critical mass).
At the point of total compression (crunch or inplosion) the fusion occurs and the mass begins to explode instead of implode.
The first thing out is gamma radiation, back ground noise we hear a 4degrees KElvin.
Next other particles come out at light speed or near light speed, X rays, then free electrons, protons, positrons and a hot plasma expands out in a spherical shape at great speeds, somtimes approaching light.
As this cools the atomic particles start to form into rudimentary elements of mostly hydrogen and as these form they create mass attraction (gravity) and draw other particls inward to form stars.
2007-03-11 04:52:38
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answer #4
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answered by Anonymous
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The problem with the big bang theory,as such,is that the primordial egg had nowhere to exist and no time reference to blow up.
It started as a single space-time pulse of minimum duration,that began some time around 10 to the minus 95 seconds from zero.
The two dimensional entity expanded at an accelerated rate for about one thirty-billionths of a second.
When the expansion rate attained the speed of light the acceleration stopped.
The entity then evolved into the universe that we experience to-day.
The space-time pulse originated from a finite potential that emerged some time after time zero.
The potential had to be finite or it would have had no reference to begin it's course.
When an incident occurs it had to emerge from a finite condition,when the incident goes out of existence never to happen again the state is eternal,the infinity of nothing.
2007-03-11 01:29:39
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answer #5
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answered by Billy Butthead 7
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There is a lot of movement in the universe. Galaxies appear to be receding at great speed, this momentum is deduced to come from the 'big bang'. Over a very long time, gravity will collect everything together again to a single point. At a single point gravity will cease to exist, or perhaps reversed, and everything is disgorged into the nothingness at a colossal rate. The cycle begins again
2007-03-10 22:41:44
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answer #6
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answered by Londo Mol 4
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Sorry, I farted!
No, seriously, I don't entirely accept the big bang theory. I think there must have been something there before. Who knows? This may not even be the first incarnation of the universe. People just accept the big bang theory because it says so in text books, rather than trying to come up with their own conclusion. People don't even know just how big the universe is, just what they can see. It may be many hundreds or thousands of times larger than anyone thought possible.
2007-03-10 20:43:56
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answer #7
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answered by Anonymous
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i support the singularity
cause its the only probable answer which has not yet failed.
as a result of bringing Einsteins predicitons to the max Hawking and Penrose brought up evidence that it must have been a singularity, cause otherwise this hughe ammont of matter along with the still mostly uniform great wall on the universe's edge would remain unexplainable.
This wall is still expanding and 'producing' new matter as a result from conveting energy in both matter and (so newest theory.. WIMPS aka Dark Matter)
seems to sound very esoteric, but its the best conclusion so far, that it was a singularity, it was shown
2007-03-10 22:51:18
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answer #8
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answered by blondnirvana 5
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who knows, nobody knows, its to bad we are so insignificant, it really causes a lot of grief within side of me. I want to know how it all started. Some scientists believe that our universe resides in an ocean full of universes, tightly packed by each other. And sometimes these packed universe wiggle and wobble, and when they wobble and hit each other a spark of unknowable energy is dispersed. I mean if the universe does do a big crunch I cant see it starting another big bang what keeps the energy continuing.
2007-03-11 22:00:51
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answer #9
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answered by Adam B 2
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Spacetime.
You (and apparently most of the other respondents here) are all caught up in the "bang" of the term, without apparently understanding in the slightest what the term even means. "Big Bang" is an epithet , and not an actual descriptor of what it represents.
There wasn't a huge "explosion" as such - just a rapid expansion of spacetime. Beyond that, we know virtually nothing.
2007-03-14 17:28:32
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answer #10
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answered by yoericd 3
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