james bond
Gold Member
- Oct 17, 2015
- 13,407
- 1,805
- 170
Even if we could travel near the c, we would not affect time that much. We could travel into the future as time would be slower on Earth when we returned, but we would not have gone that far into the future. One would have to travel near c for some time to make say a ten-year difference from their space age vs. Earth age.If you calculate relativistic effects along with their equivalent Lorenz transformations, you get a curious result. The return to Newtonian physics, but only from a single point of view.
As you approach the speed of light (an absolute speed limit to particles with a rest mass) you also experience time slowing down. That decrease in the rate time passes changes your perception to make it look like you're going faster than you actually are.
So when you travel .707 times the speed of light. From your reference frame it looks like you're traveling the speed of light.
So if you used the stars as distance markers, you would travel 6 trillion miles in a year. But of course, your year would actually be slowed, and the actual passage of time would be 1.4 years.
So you would think Newton was driving, until you arrived and Einstein would tell the true story.
Also, we could not travel back into the past as we could never travel fast enough to catch up with past light waves. In theory. I'm not sure what happens to past matter. Maybe traveling back in time is an illusion as there is no past matter but only past light.