Cool beans. The wave effects we see and even manipulate in space-time (not just gravity waves, but radio and such) indicate to me that space-time is indeed some kind of medium, just as the more mundane forms of waves (sound waves, waves in water) travel through those media. I ask: Is that medium dark matter? Does space itself have mass?
At one time space was thought of as something called the 'ether' necessary for the propagation of electromagnetic emissions etc. You may like the site http://en.wikipedia.org/wiki/Aether_theories not that I am a big fan of Wiki, however the site is fairly accurate. Is space dark matter? Maybe space has the characteristics dark matter? I think we, or I anyway, can only say that dark matter exists in space time. Dark matter what ever it is, has too many unknowns for me to speculate about. Well in the context that you would be interested in. reva
No, he should apologize. Not all opinions are equal. In fact, we're so sure about gravity, that for one to claim that they do not "believe" in it borders on nonsensical. It's like saying, "I don't believe 2+2=4".
if you could make the earth appear and disappear at will, you would see waves as it changed space\time, just like dropping a rock in water .
I believe that in the beginning there were nothing so big, like the size of the earth. If this is the case, then every floating rock or planets started from the smallest particle, which is Atom..quark or sub quark. so if this the case......are you saying that this smallest particle itself is gravity? I refuse to believe in GRAVITY. Stephen Hawking is ...so STUPID, believing time travel is possible.
You asked about quarks? According to the BB theory, which is the only one with some empirical evidence to support it claims that in what is know as ‘the Planck Epoch’ (planck being a tiny very tiny scale) and Before t=10-43 seconds, (t=timme) which is billionths of second after the Big Bang (t=0) banged : all 4 forces of physics were unified (merged) into a single ‘Superforce’ only one force described/controlled all of physics. It was only after that nanofraction of a second in what is called (in physics) ‘the Grand Unification Epoch’ Gravity pulls away from the Superforce and as the universe cooled the Strong & Electroweak Forces unified into two forces instead of one. During this ’time’ our universe was tiny (compared to today or anything really) a super dense particle soup of quarks, antiquarks, & photons seeking to equalize according to the 2nd law… Btw 'time travel' is real and has already been accomplished. Not a big jump but a measurable one nevertheless. reva
This is correct. No. Gravity is a warping of spacetime. Even if, somehow, you do not agree with "gravity", you should still at least learn what it's all about. How can you dismiss something before first understanding it? All objects with mass exert a gravitational force. This includes the Sun, the Earth, you, me, and even a hydrogen atom. Size is irrelevant - gravity is tied to mass. The greater the mass, the greater the gravitational force. Hawking is anything but stupid. It is fallacious to assume that just because you may not understand something, means it doesn't exist or is false.
I know that academically speaking my expressed viewpoint has no merit. To me, there are 2 platforms where viewpoints could arise. 1. From the surface of the earth. 2. From the space itself, seeing or imagining the planet earth, from a far away distance. I understand, that it is from a falling apple that the claim of gravity was established. This viewpoint came from the platform of the surface of the earth. Now, to me when I use the other platform which is the space, seeing or imagining the earth from a far away distance, what I saw was rocks, or planets that float. As they float, I saw no gravity but a huge, mega and endless bubble of unidentified substance. From endless space, this planet earth as I move away from it, is just the size of an atom. It is so small, it is so light that it floats and is controlled by this unidentified bubble. From this platform I don't see any gravity. Thank you for expressing your viewpoints. I refuse to believe in gravity.
