26 Aug 07
Originally posted by MetBierOpDon't feel too bad, nobody else does either. One way some folks THINK about gravity, Einstein says gravity is due to the mass of an object and that object bends space a bit around it, like sticking your finger down on a rubber sheet, that kind of visualizes what gravity does, the bend in the sheet is what mass does to space to cause objects to try to close the distance separating them. That helps to visualize the effect but still doesn't go very far in saying exactly what gravity actually IS. One theory says the reason gravity is so weak compared to, say, magnets(a refrigerator magnet even though it has a pretty worthless magnetic field, still holds itself up against the combined gravitational pull of the whole planet which shows how strong that kind of field, Electromagnetic, is compared to gravity) is so weak because of extra dimensions sharing the gravity field, in this theory, gravity is kind of a connector between dimensions and so we in our 4 dimensions only feel a tiny fraction of its total power because it is woven throughout all dimensions, however many that turns out to be, 11 to 26 in some theories like String Theory or Mbrane theory.
I replied in the posers and puzzles forum on a thread about gravity but I think it belongs eihter here on in the debates forum.
Here it is:
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I never understood gravity at all.
"Gravitation" is the attractive influence that all objects exert on each other, while "gravity" specifically refers to a force which all massive o ...[text shortened]... away from it.
While I can learn that this is the truth, I simply cannot understand why.
26 Aug 07
2 edits
Originally posted by MetBierOpI get my information from a program called "The Universe". It's station 120 HIST by satellite. There's no sense in trying to read a book about this stuff because our information changes so fast. I highly recommend that people interested in the newest theories of our universe watch this program. I always record it.
well it seems logical that there is a other factor then only the 2 objects.
I am not really familiar with "The dark matter" but I thought that it was still hypotheticall. Do you have a source, so I can find more information on it?
You also triggered me for an off topic question,
if we cannot see 98% of the universe, then how do we know, that what we can see is 2% of the total?
BTW, I misquoted the program. They said that only 1-1/2% of our universe is visible, not 2%, but let me clarify something though. That doesn't mean that 98-1/2% is dark matter. There is dark matter and then there is dark energy, which according to the program are not the same thing.
I'm not smart enough to answer your last question.
26 Aug 07
Originally posted by ArrakisI was just watching HIST about disasters. I'll need to try and catch the show you are talking about, I've just never caught it.
I get my information from a program called "The Universe". It's station 120 HIST by satellite. There's no sense in trying to read a book about this stuff because our information changes so fast. I highly recommend that people interested in the newest theories of our universe watch this program. I always record it.
BTW, I misquoted the program. They said t ...[text shortened]... the program are not the same thing.
I'm not smart enough to answer your last question.
P-