A Conversation for The speed of dark.
I don't agree
Wonko Started conversation Nov 13, 2000
The sensors measure the speed of the last light before darkness.
I don't agree
U128068 Posted Dec 24, 2000
No, the sensors measure the time at which the darkness arrives. The distance between the two divided by the time taken for the darkness to travel between the two gives the speed.
I don't agree
Wonko Posted Jan 5, 2001
Actually, none of the two experiments will work. Light comes in the form of quants called photons. If a photon hits a sensor, it raises the level of orbit of an electron and is dead (so to say). So what you can compare are the times of two or more photons, hitting the sensors at different times. Which may result from the time difference the longer travelling took to travel the distance. Or which may result from the time difference it was created, or let through, very possibly at different times. They are fast, them little energies.
So in each experiment you are measuring the time differences some different photons hit some sensors. Light and, huh, darkness are vague concepts.
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