We're told that before the big bang the universe was condensed into a space so small it's almost unthinkable, so does this small size mean it has super-concentrated gravity, or would the dynamics of size in space still apply(in that the smaller the object in space the less gravity is exhibits)?
2007-03-25 10:10:38 · 7 answers · asked by Luis 6 in Science & Mathematics ➔ Physics
Actually, gravity as we know didn't quite work the way we are used to back around that time (first fractions of a second of the universe). The forces of the universe (all 4 of them... well, maybe there is only one...) were quite different so this question is quite hard to answer. I could try to argue that no, the gravity could not have been great because there was nothing to be pulling on. Gravity is the attraction between TWO objects. If you only have one, you don't have gravity. There is also the achilles debate about size and the impossibility of motion. One line of thought is that because everything is smaller and closer together, it would work exactly the same since everything was proportionally the same (which is all that matters when you F = (k) *M1*M2/r^2. Remember, the law of gravitation is really only a proportion. if you double both masses as well as the distance, the force remains the same. Anyway, nobody really has a clue what happened back then.
2007-03-25 21:20:17 · answer #1 · answered by Archknight 2 · 0⤊ 0⤋
Your gravitational attraction to an object depends only on its mass and your distance from it. Compressing an object doesn't change its mass, but it does let you get closer to it. The intense gravity is due to a large amount of matter in a small space, such as a black hole.
The big bang theories are all extrapolation into the past. If the expansion of the universe has always proceeded in the same manner (and that's a big IF), you extrapolate back to all the mass and energy of the universe concentrated into a single point of space. Many people consider it absurd to extrapolate that far. But even if you do, it says nothing about conditions 'before' that.
2007-03-25 20:48:05 · answer #2 · answered by Frank N 7 · 0⤊ 0⤋
It is conjectured that prior to the phase tranition (aka the big bang), the universe is a Planck-sized object (that is 10^-33 cm) that is extremely hot and dense. Through the process of bubble nucleation, the Planck-sized quantum bubble expanded exponentially to the Universe we observe today.
You are right in staying that te small size of the bbble would imply super-concentrated gravity. This is the reason why physicists study black holes, because the nature of black holes could be very similar to the initial state of the Universe in its infancy.
2007-03-25 11:06:53 · answer #3 · answered by PhysicsDude 7 · 0⤊ 0⤋
Gravity is a good one, and there's a theory that spells out how gravity is meant to weaken in time, if the same theory is applied to our earth and moon using the scientific? prediction of the earths age it's gravity would have weakened so much our moon would have flown away ages ago...ie the earth is not as old as Bangers predict.
And bangs go hand in hand with an explosion and correct me if I'm wrong, but explosions dissipate heat ie the closer you are to the centre of the explosion the hotter it gets, the further you go from it the cooler it gets etc. Didn't they do tests to work out the heat variation through the known universe and found that space is at a constant? ie no indication of any explosive ground zero. Please let me know more about this if you know different.
2007-03-25 10:32:05 · answer #4 · answered by Anonymous · 0⤊ 3⤋
in accordance to the great bang concept each little thing in this universe got here from the great bang, inclusive of area, meaning that our universe is finite, which in turn means that it truly is accessible for there to be some thing previous the sting of the universe. There ought to be yet another universe that adjust into created on the comparable time yet in a various ‘place’ assuming that there is another ‘place’. the only way shall we come upon this universe may be if it got here in touch with our very own and then we waited for the sunshine from that touch to realize us here on earth.
2016-12-19 13:43:14 · answer #5 · answered by moh. 3 · 0⤊ 0⤋
Gravity does not depend on volume, it depends on mass.
2007-03-25 11:04:03 · answer #6 · answered by Dr Ditto 2 · 0⤊ 1⤋
Hi. That is what the GUT theory is trying to figure out. http://www.answers.com/topic/grand-unification-theory
2007-03-25 10:15:03 · answer #7 · answered by Cirric 7 · 1⤊ 1⤋