RE: Puzzling thing about Speed of Light/Speed of Causality
August 24, 2018 at 8:24 am
(This post was last modified: August 24, 2018 at 8:26 am by The Grand Nudger.)
(August 24, 2018 at 3:31 am)vulcanlogician Wrote: Doesn't this seem counterintuitive? It seems like it should only take eight minutes to see the sun go out because the other end of the stick would only have to travel a few centimeters. But that is not the case.
I think it seems counterintuitive because we're not used to dealing with distances like that...but the same thing happens here on earth, your stick centimeters away from the switch and your eyes a few feet from the lightbulb, all numbers scaled down....far too fast for you to be able to detect with the unaided eye.
You could get a stop motion camera and see the compression, though you're unlikely to notice the lag between the switch breaking the current and the light going out.
(totally off topic, but the speed of a signal over cosmic distance is one of the more amusing arguments against omniscience, too.)
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