The Aether and Problems with Classical Relativity (HSC SSCE Physics): Flashcards
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Classical relativity principle
Classical relativity principle
No absolute frame of reference; all velocities are relative
Maxwell's prediction about light speed
Maxwell's prediction about light speed
Constant speed, independent of source or observer motion
The aether (definition)
The aether (definition)
Transparent, weightless substance thought to fill all space
Key property of aether re: motion
Key property of aether re: motion
Fixed in space, not moving with planets or stars
Aether as absolute reference frame
Aether as absolute reference frame
Would provide fixed framework to measure all other motion
Scientists of 1887 aether experiment
Scientists of 1887 aether experiment
Albert Michelson and Edward Morley
Purpose of Michelson-Morley experiment
Purpose of Michelson-Morley experiment
Detect Earth's motion through the aether
Interferometer
Interferometer
Device splitting light into two beams, then recombining them
Michelson-Morley experiment result
Michelson-Morley experiment result
Null result - no evidence for aether found
Consequence of the null result
Consequence of the null result
Aether theory abandoned; led to special relativity