I know only the basics about relativity, and was explaining to my friend that as you travel at a speed that approaches c, you experience less time than an observer. I believed that it was explained in "A Brief History of Time" such that your 'velocity' vector can only have a magnitude of c, and if portions of that vector are are in the spatial dimensions rather than the time dimension then you won't experience as much time as an observer.(adsbygoogle = window.adsbygoogle || []).push({});

So then my friend asked "well, if I rode Kingda Ka for 50 years straight, would I age at least 1 second less than you?"

I have the feeling that it would have a negligible effect on his aging, and my prediction was that he would experience only millionths of a second less time than a relatively motionless observer would.

Is there any equations for the layman that I could use to calculate something like this?

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# Time relative to someone moving at a high speed-equations for a layman?

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