If there are multiple dimensions and multiple universes, Could gravity cross all dimensional boundaries?
If gravity can cross all dimensions and all universes then would all the matter in all the universes contribute a single force of gravity and explane the missing 94%?
2007-05-20 12:08:02 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Actually, one of the possible extensions for the standard model of particle physics uses the group E8xE8. It turns out in this theory that every 'normal' particle has a 'reflected' version with the same mass, an analogous charge, etc, but which only interacts with 'normal' particles through gravity. At first, this sounds like a good candidate for dark matter, but it turns out that real dark matter doesn't interact with itself very strongly either, but the 'reflected' matter in E8xE8 would interact with other 'reflected' matter strongly.
Some theories do propose additional dimensions, which would require some modifications to gravity on a small to medium scale, but these don't include good alternatives to dark matter.
2007-05-20 15:35:46 · answer #1 · answered by mathematician 7 · 0⤊ 0⤋
There are some misconceptions about "dark matter" and "dark energy". This is what I know: When we view a galaxy there seems to be much more mass there than we can see. (we know this by studying how fast the galaxy rotates). Also the way that certain galaxies rotate around each other doesn't add up because they rotate faster than they should. We attribute this missing matter to "dark matter". Scientists think that is either because of "MACHOS", which are brown dwarf stars or planets that don't emit light so we can't See them. Or "WIMPS" which are small particles like neutrinos that we can't see but there mass would still effect us. As for dark energy, the rate at which the universe is expanding is increasing, but our calculations say that the universe should be collapsing together, we say that this unseen energy is "dark energy". And we have pretty good evidence for all of this.
Hope this helps.
2007-05-20 19:20:34 · answer #2 · answered by Anonymous · 2⤊ 0⤋
As far as observation is concerned humans are only able to observe one Universe ant that is the One we are in.
What is outside this containment is beyound means of human scientific observation.
However it does not mean that there arent other Creations outside the outskirt of the Universe which is our Creator's domain.Perhaps the laws of gravity may not be the same as in our Universe.
Dark matter may be the source of all gravity phenomenon.
2007-05-20 19:22:06 · answer #3 · answered by goring 6 · 1⤊ 0⤋
First question: Possibly, we don't know. Frankly, we don't know if there are multiverses or just the one Universe.
Second question: It's a logical explanation, but first we have to figure out if there's just the one Universe.
2007-05-20 19:11:49 · answer #4 · answered by Brian L 7 · 1⤊ 0⤋
well i guess it could cross JUST b/c Einstein sayd if you use the speed of light and change its mass n all you can go through different dimensions and portals and all...im not sure though, sorry
2007-05-20 19:13:54 · answer #5 · answered by al_that_2_u 1 · 1⤊ 0⤋
I love the question, and, I really love all the answers.
But Now my brain Hurtz!
2007-05-20 19:24:20 · answer #6 · answered by bob shark 7 · 2⤊ 0⤋