Sujet : Re: 1. On the notion of simultaneity in special relativity
De : relativity (at) *nospam* paulba.no (Paul.B.Andersen)
Groupes : sci.physics.relativityDate : 29. Aug 2024, 13:27:02
Autres entêtes
Organisation : A noiseless patient Spider
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Den 29.08.2024 13:32, skrev Richard Hachel:
If I could send a sound along a metal bar from here to the moon (a bar 3.10^8m long for example). The sound itself would not be constant according to the longitudinal direction of travel.
If we ignore the fact that your scenario as always is impossible by
a number of different reasons:
The speed of sound in a steel rod is ca. 5 km/s in both directions.
T ≈ 3e8/5e3 s = 60000 s = 16.7 h in either direction.
It would be faster in the return direction. And vice versa for a lunar observer.
-- Paulhttps://paulba.no/
1. On the notion of simultaneity in special relativity
Re: Yes, I Know (je connais l'histoire).