Recent content by Moataz

Homework Statement Suppose on a spacetime diagram, an event happens at x=-4, t=5 and another event happens at x=0 and t=6. If there is a frame such that the two events happen simultaneously, what would the relative speed of that frame be? Homework Equations The Attempt at a...

Also, my book says that this formula only works in inertial frames. \Delta \tau = \int \sqrt[]{1-v^2}dt ; v=speed Bu that does not make sense because v is in terms of t and it is supposed to change over time which means there must be acceleration!?

I have a simple question. From what I understand about relativity and proper time (I am beginner btw) is that when a clock moves at a huge speed, then it will measure different time than the coordinate time in some other reference frame. So, does that mean it really slows down? as in the...

Thank you guys. That is very helpful. I still have some questions though. I guess I am going to need more time to absorb the concept here :) @elfmotat: So whenever \Delta x=0 in some reference frame, (\Delta s)^2=(c\Delta \tau )^2=(c\Delta t)^2 Is this always true? at least in the...

So, I just want to make sure I understand this correctly. In the first equation you provided, delta T (or the coordinate time) depends only on the delta X in that frame since C is always constant? Also, are you saying delta proper time times C=space-time interval? Because what I know is that...

Hello, So, I have just started studying relativity, and I am confused about some basic concepts in relativity. So, the book we use says that that time has three different kinds, proper or path time, coordinate time and spacetime intervals. I understand that coordinate time is the same as...