- #1
iliedonUA
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I've been told on many occasions that light will always be measured at the same speed regardless of measuring equipment speed as long as there is no acceleration and you are moving the same speed relative to that object you are measuring from
if that is incorrect please ignore what i say below and tell me why because it doesn't make any sense to me either
i know that this isn't an affect of time dilation, but i will include that to justify it
there is no human observer, just robotic, pretend we have a train, the train is moving in outer space at 83% of the speed of light where time dilation is slowing time by half, let's say the train is 1 light hour long, now... this is some extreme rounding here but let's say from still observer outside the train, the train is moving at let's say 5/6th the speed of light, so if from inside the train, light was shined from the back of the train to the front, it would take about 6 total light hours for the light to reach the front of the train (again more rounding)
however there is a detector at the beginning and end of the train that are part of the train, if what i said in the beginning of this thread is true, then to the machine equipment on the train measuring the light, the fact that the train is moving 83% is ignored and the equipment measured the light on the train would measure that the light has went from the back to the front of the train in 1 hour
alright in the image above there are six gaps (i fully realize the image and gaps are inaccurate), each gap is 1 light hour - the length of the train
the blue line is the path of light, starting from the right and moving left
we'll pretend that the green line is a very rough estimation of the light's current position form the perspective of an outside observer, from the outside observers stationary perspective, it will take 6 hours to complete the journey from the front to the end of the train, the train is only 1 light hour in length, but it's moving so from an outside non-moving perspective we'll say 6 hours
okay, so basically the onboard detectors should say the (according to what i said at the very beginning) that the light took 1 hour to reach the front of the train? how is this possible? even at the brown mark, if time was slowed by half for the detector 1.5 hours should've passed EVEN AT THE HALF WAY POINT, so that's already more than 1 hour passed for the onboard detector at the end of the train before the light is even close to reaching it? how is it supposed to reach the back detector in only 1 hour, time dilation is curved, not linear so please someone explain?
if that is incorrect please ignore what i say below and tell me why because it doesn't make any sense to me either
i know that this isn't an affect of time dilation, but i will include that to justify it
there is no human observer, just robotic, pretend we have a train, the train is moving in outer space at 83% of the speed of light where time dilation is slowing time by half, let's say the train is 1 light hour long, now... this is some extreme rounding here but let's say from still observer outside the train, the train is moving at let's say 5/6th the speed of light, so if from inside the train, light was shined from the back of the train to the front, it would take about 6 total light hours for the light to reach the front of the train (again more rounding)
however there is a detector at the beginning and end of the train that are part of the train, if what i said in the beginning of this thread is true, then to the machine equipment on the train measuring the light, the fact that the train is moving 83% is ignored and the equipment measured the light on the train would measure that the light has went from the back to the front of the train in 1 hour
alright in the image above there are six gaps (i fully realize the image and gaps are inaccurate), each gap is 1 light hour - the length of the train
the blue line is the path of light, starting from the right and moving left
we'll pretend that the green line is a very rough estimation of the light's current position form the perspective of an outside observer, from the outside observers stationary perspective, it will take 6 hours to complete the journey from the front to the end of the train, the train is only 1 light hour in length, but it's moving so from an outside non-moving perspective we'll say 6 hours
okay, so basically the onboard detectors should say the (according to what i said at the very beginning) that the light took 1 hour to reach the front of the train? how is this possible? even at the brown mark, if time was slowed by half for the detector 1.5 hours should've passed EVEN AT THE HALF WAY POINT, so that's already more than 1 hour passed for the onboard detector at the end of the train before the light is even close to reaching it? how is it supposed to reach the back detector in only 1 hour, time dilation is curved, not linear so please someone explain?