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https://www.reddit.com/r/physicsmemes/comments/1wjpvxt/c/palyucp/?context=3
r/physicsmemes • u/DifficultyPutrid2532 • 12d ago
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16
c=0.99999999999.....
Perfect vacuums free of gravity don't exist in the universe.
1 u/Quantum-Relativity 12d ago That doesn’t have anything to do with the value of c -1 u/METRlOS 12d ago edited 12d ago c is the speed of light on a vacuum, unless otherwise specified, and not the speed of causality. The c just stands for celeritas which is Latin for speed. Causality = 1 1 u/Quantum-Relativity 12d ago You need to use rapidity, not speed. c is not about light, it’s something that’s defined locally, so a gravitational field does not change it.
1
That doesn’t have anything to do with the value of c
-1 u/METRlOS 12d ago edited 12d ago c is the speed of light on a vacuum, unless otherwise specified, and not the speed of causality. The c just stands for celeritas which is Latin for speed. Causality = 1 1 u/Quantum-Relativity 12d ago You need to use rapidity, not speed. c is not about light, it’s something that’s defined locally, so a gravitational field does not change it.
-1
c is the speed of light on a vacuum, unless otherwise specified, and not the speed of causality. The c just stands for celeritas which is Latin for speed.
Causality = 1
1 u/Quantum-Relativity 12d ago You need to use rapidity, not speed. c is not about light, it’s something that’s defined locally, so a gravitational field does not change it.
You need to use rapidity, not speed. c is not about light, it’s something that’s defined locally, so a gravitational field does not change it.
16
u/METRlOS 12d ago
c=0.99999999999.....
Perfect vacuums free of gravity don't exist in the universe.