4 ms·
Unfortunately, Einstein threw a very large spanner into the works as far as that idea is concerned: https://en.m.wikipedia.org/wiki/Relativity_of_simultaneity h
by omnicognate 4y ago
Unfortunately, Einstein threw a very large spanner into the works as far as that idea is concerned: https://en.m.wikipedia.org/wiki/Relativity_of_simultaneity https://en.m.wikipedia.org/wiki/Relativity_of_simultaneity.
- dotancohen 4y agoThen how about using the pulses of a distant pulsar to measure time? That should get us through to the next few centuries at least. The fine article mentions that Lunar atomic clocks could be placed in Lunar orbit. However, there are very few stable lunar orbits due to the numerous mascons near the surface. And station-keeping would affect the clocks' accuracy - not to mention that the tidal variations on the Earth side and far side will affect the clocks as well. And any Lunar-specific solution would be unlikely to scale to Mars, Mars' moons, asteroids, and interplanetary spacecraft. Thus reinforcing the distant pulsars' signal as the optimum solution for the time being that humans remain in the solar system.
- helsinkiandrew 4y agoBut aren't the pulses of pulsars affected by black holes and wouldn't the pulses arrive at Mars, Moon, Earth at different times anyway?