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Movement of a piston - Engineering - Science Forums 5 Jan 2012 · There is a paradox in the statement that a body which is in continual motion can be said to have stopped at some point. I guess its a matter of semantics. A body in continuous motion doesn't stop, but the body that you are refering to is not in continuous motion because it …
FTL - Speculations - Science Forums 21 Feb 2025 · I can see a solution to the fuel paradox discussed earlier if one were to look at point x where fuel runs out as being all over the place due to changes in length (and therefore inverse changes in time) experienced by the crew. Although it is convoluted or hazy in my mind, I'm sure there is an explanation involving space time equivalence.
Rate of change of redshift. Humble question - Science Forums 8 Aug 2012 · This brings out the two train model with two trains speeding away from each other. HOWEVER the train model is flawed and can't be properly used. The 3 galaxy cluster model is a 3 point model. The train is a 2 point model. For the train model to be proper, we must have 3 trains somehow interacting. That would be hard to imagine.
diagonal motion "paradox" - Relativity - Science Forums 23 Apr 2017 · This is a version of the pole in the barn and the barn doors or the train in the tunnel paradox. The solution to all these types of apparent paradoxes is the same. You need to take relativity of simultaneity into account when measuring distance between extremities.
Ground Effect Train - Classical Physics - Science Forums 5 Jul 2011 · The next stage in the development is to build a larger Aero-Train prototype with room for six passengers and a maximum operating speed of 350 kilometres per hour (217 mph). The final, full-scale Aero-Train, with a length of 85 metres (279 ft) and seating capacity for 325 passengers, is aimed to begin service in 2020. TECHNICAL SPECIFICATIONS:
question about length contraction - Relativity - Science Forums 27 Jan 2015 · Suppose a train is 100m long in its rest frame and is heading East, and passes a station that's 100m long in the track's frame. Have 3 clocks on the train, front middle and back, synchronized in the train's frame. Have 3 clocks at the station, West end, middle, and East end, sync'd in the track's frame.
How many times does the train pass? - Science Forums 28 Sep 2010 · If he only felt like he was in the train for 2 seconds he may have counted 15 stations, but the person at the station counted 400 passes. Since the train MUST have passed the station a finite number of times, how many times did it pass? We may be missing something obvious, but we can't think what it is. Thanks for any info you can give. Paul.
Two lightning bolts striking either end of train 9 Jan 2017 · Simultaneity - Albert einstein and the theory of relativity. This video says that the person on the train will see lightning from front of the train first. But what if we take it that the train is stationary and the earth is moving below the train. How could we …
Calculating time for light clock time dilation - scienceforums.net 19 Apr 2024 · Note that there could be a second light clock on the ground. For the train, where the pulses travels on L, the ground clock's pulse travels on D. For the train's rest frame, it's the ground that has the slow time. Time dilation is reciprocal. And further, note that time dilation and differential aging (e.g. see "twin's paradox") are different ...
train - tunnel paradox - Relativity - Science Forums 27 Jun 2013 · Hi guys, I was recently analyzing the famous train and tunnel paradox which is based on length contraction. If somebody isn't familiar to it, here's the link: . So in the example there are two guillotines and the most important thing is that all observers agree that none of them hits the train. T...