@metal-brainsaid Science is not an individual. Science says nothing. Brian Greene is an expert and you dismiss his expertise. You are a huge hypocrite!
Science is not an individual.
Right, which is why you CERTAINLY aren't the word of science.
Science says nothing.
Science gives us the scientific facts and that is what all non-morons mean by what science 'says'.
@Metal-Brain And you don't know the difference between hypnotism and reality. You get hypnotized by the dudes you pronounce world experts and then cannot accept any criticism otherwise.
@Metal-Brain So show us the math that says that at 3200 km above the surface of Earth there is no time flow difference. The center of Earth, the radius, is roughly 4000 miles or 6400 km and 3200 km up from the surface is half the radius and therefore in a lower gravity field compared to the ground and if you think there is no difference in time flows from that difference you better be prepared to prove it mathematically.
@sonhousesaid @Metal-Brain So show us the math that says that at 3200 km above the surface of Earth there is no time flow difference. The center of Earth, the radius, is roughly 4000 miles or 6400 km and 3200 km up from the surface is half the radius and therefore in a lower gravity field compared to the ground and if you think there is no difference in time flows from that difference you better be prepared to prove it mathematically.
Well it seems that altitude is where SR and GR cancel out leaving the time flow same as surface. Never saw THAT coming😉
So why don't GPS folks put GPS sats there? No need for any SR or GR.
So why don't GPS folks put GPS sats there? No need for any SR or GR.
For a short while I wondered why aren't GPS sats made to sit at that altitude so to eliminating the need to do any sync's of clocks. But, when I think about it, its such an extremely trivial task costing near enough $0.00 to arrange the clock tick rate preset to any other specific altitude that there really is no point! Thus they ignore that when choosing the sat's altitude and instead decide whichever altitude is the most convenient for other reasons.
Since that altitude where SR and GR time dilation completely cancel out is NOT where the GPS sats are actually put, MB has and makes no point.
@humy Still, it is an interesting intersection of SR and GR. I should have figured that one out on my own.
So generally that would stand for most any gravity well maybe outside of a black hole.
I wonder what the general solution for that would be? Where SR and GR are equal?
So generally that would stand for most any gravity well maybe outside of a black hole.
I wonder what the general solution for that would be? Where SR and GR are equal?
You should ask Deepthought that one; I'm not sure how to do the maths for it because outisde my area of expertise. It might be a bit different for black holes because their gravity is so extreme that they have an event horizon + also don't know if frame dragging or other extreme gravitational effects might effect that. If the equations calculated that where they exactly cancel out is below the event horizon then there is no solution for stable orbits.
@sonhousesaid @Metal-Brain So show us the math that says that at 3200 km above the surface of Earth there is no time flow difference. The center of Earth, the radius, is roughly 4000 miles or 6400 km and 3200 km up from the surface is half the radius and therefore in a lower gravity field compared to the ground and if you think there is no difference in time flows from that difference you better be prepared to prove it mathematically.
Do you disagree with me? You show us the math if you do.
@humysaid For a short while I wondered why aren't GPS sats made to sit at that altitude so to eliminating the need to do any sync's of clocks. But, when I think about it, its such an extremely trivial task costing near enough $0.00 to arrange the clock tick rate preset to any other specific altitude that there really is no point! Thus they ignore that when choosing the sat's altitude and ...[text shortened]... ilation completely cancel out is NOT where the GPS sats are actually put, MB has and makes no point.
When did I try to make a point that you are implying? You are imagining things. This all came about because you challenged my math and not for any other reason.
Einstein's Relativity Is Wrong?
18 Mar '20 13:52
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