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**New Theories / Does this experiment disprove relativity?**

« **on:**22/05/2021 06:41:42 »

**Mod edit: Topic split off Can you measure the one way speed of light without synchronised clocks?**

https://www.thenakedscientists.com/forum/index.php?topic=82170

Imagine lots of clocks being made immediately after the big bang which are then separated from each other by the expansion of space, leaving us with a universe full of clocks rather than galaxies, but all spread out through space evenly. We could take any pair of these clocks and accelerate them towards each other with equal force, and when they meet up they would both agree about what the time is. But that would only apply if the clocks were all at rest in the expanding space. What happens if they were all moving through space at high speed in the same direction? Well, in some cases when you bring two of these clocks together, you’ll be accelerating one and decelerating the other, so they will not agree on the time when they meet up. If those clocks existed, this would provide us with a means to pin down the absolute speeds of motion of the clocks, and once we have those, measuring the one-way speed of light relative to a host of different types of apparatus (and knowing that you're getting the correct answer) becomes trivial..

(We can’t go back to the big bang to place lots of clocks there to do that experiment for real, but space is still expanding, and it’s doing that here. This means that we should be able to carry out essentially the same experiment right here and now, as I set out recently elsewhere.)

If you’re having difficulty understanding why the clocks in some cases would have to go out of sync when you bring them together, this must happen in order to conform to the rules of the twins paradox. Imagine that when the clocks are created right back at the time of the big bang, they all send out watches in two opposite directions. Set A of these watches are all moving in the same direction as each other and at the same speed, while set B of watches were sent out at the same speed but in the opposite direction. Let’s suppose that the clocks are stationary and the watches are moving. If a set A watch meets a set B watch, they will agree with each other about the time, but if any watch meets a clock, the time on the watch will lag behind the time on the clock due to its speed of movement through space. How can I prove that? Well, in a case where a set-A watch passes a clock, then passes a set-B watch later on, and then the set-B watch passes the clock later still, we have the twins paradox experiment being carried out by those three timers. We could have scenarios where the clocks and set-A watches are both ticking at the same rate (which means the clocks aren’t at rest), but the set-B watches would have to be ticking slower than that in order to produce the required result for the twins paradox. Once you understand the necessity for that to happen, you should then be able to see that when clocks/watches pass each other, the amount by which they disagree on the time provides information about their absolute speeds of motion through space. Relativity is cracked wide open by this.