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Physics, Astronomy & Cosmology / Re: Where did the big bang come from?
« on: Yesterday at 01:44:28 »
Good to see your return. Been a while it seems.
The universe has a beginning so to speak, yes. It was never a point. The big bang happened everywhere, not at a point in space. Relativity theory has time as part of the universe rather than the universe occurring in time. That means it is meaningless to talk about 'before the universe', or it being created, or some such.
The alternate (absolute) models do support a universe contained by time, so such language is appropriate if you're using those models.
Hope some of this helps.
According to the theory of relativity, time isn't a constantAccording to relativity, time isn't absolute. According to some alternate, but still valid, theories, time and space are both absolute. Nobody in the cosmology field ever seems to use these alternate theories, especially since they lagged relativity theory by almost a century.
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when the jet lands at the airport and you compare the clock that traveled and the one that didn't they will show a different amount of time has passed.Yes, this has been demonstrated, but it takes really accurate clocks to measure the difference. It's far more noticeable with say GPS satellites, all of which contain such accurate clocks.
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Even though each second that passed was a full second relative to the person experiencing it, the actual time that passed isn't the same as the clock that remained stationary.Time and space is not absolute, remember? So there is no 'clock that remained stationary'. Stationary relative to what?
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So in essence, because time contracted for one clock, the other had less time pass.No, the length (interval) of the spacetime path traversed by one clock is shorter than the other. This is a physical effect. Time isn't something that 'contracts'. There is time dilation, but that is a coordinate effect, not a physical one.
I couldn't figure out what it was growing into but had to accept it. My thoughts were always directed towards the end of infinite because well, it had a beginning, a fixed point attaching it to reality that was actually wrongfully ignored. My mind (would suspect most of us) is linear with space and time, everything has a beginning. I kept meditating on infinite in every form I could imagine. Still the question of what the universe is growing into remainedNo valid model has the universe expanding into some otherwise unoccupied space. Instead, space itself is expanding. There can be no edge to the universe, be it finite or not. That just doesn't work.
The universe has a beginning so to speak, yes. It was never a point. The big bang happened everywhere, not at a point in space. Relativity theory has time as part of the universe rather than the universe occurring in time. That means it is meaningless to talk about 'before the universe', or it being created, or some such.
The alternate (absolute) models do support a universe contained by time, so such language is appropriate if you're using those models.
Hope some of this helps.
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