Recent content by erics

whoops I meant ship 2 Velocity with respect to Earth would be 0.9897433186... typo... I left out a nine... it should then be exactly the same as the .8606 C So knowing this, it would appear to Ship #1 that an equal amount of ship #1 clock tickings were during the getting surpassed by ship #2...

My guess is that perhaps nothing can be said for time scales of vehicles moving at different velocities to be proportional to each other on a percent scale of total time elapsed... only that the end results at the end of 20 years accumulate to the proportions that they are... and so it cannot...

Suppose you have two ships departing from Earth at the same time, Ship #1 and Ship #2. Both ships depart Earth in the year 2000, both in the same direction from earth, and both Ships return to Earth in the year 2020, so 20 Earth Years for BOTH ships... Ship #2 does something somewhat...

Yeah I'm not sure length contraction causes time dilation, but they are 100% correlated between the 2 reference frames. If the traveler parallel to the path of a resting observer experiences length contraction, and given the resting observer knows the speed of the traveler and can recalculate...

I substantially agree with you, Max, unless you make the case that the ship is resting relative to the objects you are using to define what "rest" means" and what velocity means...then you can argue the ship's readings of length are the proper lengths and the cosmos are all moving backwards, but...

Or you mean the ship perceives the length of everything in front and in back of it to be cut in half with respect to objects moving with respect to Earth. Then since there is time dilation on top of this, then the perception of speed traveled by the guy in the ship is identical to the...

Correct me if I am wrong, but based on the Twin Paradox where one twin stays put on Earth (assume Earth is an object at rest here)... and the other one travels .866 of C (Lorentz Factor of 2) of for many light years and then makes a U-turn and comes back to Earth... If the twin on the ship...