I had first read of the plan to build a fantastic piece of equipment to detect gravity waves in about 1981 or so. The Laser Interferometer Gravitational-wave Observitory at first seemed like a great idea. After thinking about it for a while I realise this experiment is only an overly sensitive seismometer.
This is an interferometer with two "legs" at 90 degrees to each other. The thought is if one leg is north/south and the other is east/west then a gravity wave coming from the zenith would make one leg expand while the other would contract and thus be detected by the laser lights change in respective path length.
That would be possible in a universe that had only massive objects interacting and space.
The universe I know also has time. As a gravity wave travels through space-time it should deform space AND time. Giving photons in each leg their nature given right to travel at the speed of light.
The time dilation would negate any length change in this interferometer. This is why I think it's not a useable observitory.
Any thoughts?
This is an interferometer with two "legs" at 90 degrees to each other. The thought is if one leg is north/south and the other is east/west then a gravity wave coming from the zenith would make one leg expand while the other would contract and thus be detected by the laser lights change in respective path length.
That would be possible in a universe that had only massive objects interacting and space.
The universe I know also has time. As a gravity wave travels through space-time it should deform space AND time. Giving photons in each leg their nature given right to travel at the speed of light.
The time dilation would negate any length change in this interferometer. This is why I think it's not a useable observitory.
Any thoughts?
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