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Post by MC Habber on Dec 2, 2010 23:19:25 GMT -5
So is this creation of empty space happening inside objects, i.e. is the Earth and everything on it getting bigger?
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Post by Skilly on Dec 3, 2010 7:51:18 GMT -5
So is this creation of empty space happening inside objects, i.e. is the Earth and everything on it getting bigger? No ... Newton's Laws, conservation of mass. And it isn't that space is getting "created", it's expanding/stetching. A poor analogy, but when you heat something it expands ... nothing is created |
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Post by MC Habber on Dec 4, 2010 20:08:13 GMT -5
So is this creation of empty space happening inside objects, i.e. is the Earth and everything on it getting bigger? No ... Newton's Laws, conservation of mass. And it isn't that space is getting "created", it's expanding/stetching. A poor analogy, but when you heat something it expands ... nothing is created I didn't mean getting more massive, I meant getting bigger, as in, more empty space between atoms. Why should that only happen on the scale of stars? |
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Post by franko on Dec 4, 2010 20:38:08 GMT -5
and then there’s . . . Ripples of radiation in the sky have all but convinced a famous British physicist that the Big Bang was not the true beginning, that the universe dies and is reborn endlessly, and that the laws of existence permit at least a glimpse behind the curtain of infinity.
Last month, Oxford University physicist Sir Roger Penrose and an Armenian colleague, Vahe Gurzadyan, published a paper online arguing that the cosmic microwave background radiation that surrounds us at all times contains circular patterns of relatively uniform temperature. Mr. Penrose believes these are echoes of collisions between supermassive black holes in what he calls the "aeon" before our own, a universe separated from ours by the Big Bang.
According to the theory, billions of years from now, practically nothing will be left in the old, cold and enormous universe. more |
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Post by Skilly on Dec 4, 2010 20:48:08 GMT -5
No ... Newton's Laws, conservation of mass. And it isn't that space is getting "created", it's expanding/stetching. A poor analogy, but when you heat something it expands ... nothing is created I didn't mean getting more massive, I meant getting bigger, as in, more empty space between atoms. Why should that only happen on the scale of stars? Everything I have read suggests that it is only "empty space" that expands/stretches ... the planets and galaxies and all matter on them, remain the same Imagine two ants on a balloon. You blow the balloon up. The ants do not expand, but they do get further apart. Most things I read suggest that the universe doesn't react the same as what we expect on earth ... the earth is three dimensions. When analyzing the universe there is more (up to 8, maybe more) dimensions (time being one of them) |
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Post by Habs_fan_in_LA on Dec 5, 2010 1:48:29 GMT -5
I didn't mean getting more massive, I meant getting bigger, as in, more empty space between atoms. Why should that only happen on the scale of stars? Everything I have read suggests that it is only "empty space" that expands/stretches ... the planets and galaxies and all matter on them, remain the same Imagine two ants on a balloon. You blow the balloon up. The ants do not expand, but they do get further apart. Most things I read suggest that the universe doesn't react the same as what we expect on earth ... the earth is three dimensions. When analyzing the universe there is more (up to 8, maybe more) dimensions (time being one of them) I have a problem understanding empty space and gravity. If gravity acts everywhere at infinite distances by warping space/time; what is it that is getting warped. There must be something for the effect to be transmitted. A stone in a pond creates waves that are propogated by the water. What are gravity waves and how do they act and what do they act on? I am in California and there is a small attraction (in a non sexual manly way) between you in Newfoundland and me on the west coast and an infintesimal one between the two of us and some creature 13.7 billion light years away. If I lift weights in the gym in LA something on Beteglese is affacted immediately accross the vast distance. We now know that space is not a total vacuum but has solar wind and minute traces of gas floating in it. Between the spaces of the gas molecules gravity is propogated but the old notion of an eather seems to be coming back, even if the eather is antimatter, dark matter or another dimension. The densest concentration of matter appears to be the singularity of a black hole that can contain far more than it's surrounding environment. The only true vacuum exists between the ears in the luxury suite at the aircanada center. |
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