Recent content by BLevine1985

How did you get the acceleration of the components as r-double-dot and zero? I understand how you got the general acceleration of r-double dot but not the first part. Sorry it's been like 10 years since I took classical mechanics...

Hi I'm wondering if someone can illustrate with an example what I bracketed in blue? I'm having a hard time visualizing how it is that the accelerations of the components are NOT necessarily equal to the components of the acceleration...Much appreciated!

Thanks. I had a feeling it was one of those things that is so simple that you miss it, and yeah it turned out to be that.

Well in spacelike intervals the time order doesn't matter, since the events can't be causally linked. So I was wondering about the converse. In the time-like interval where the time order is absolute, what does that imply about the space order? Is there such a thing?

Hi, I'm having trouble understanding that for time-like events where the order of time is absolute, these events can be in different spatial orders depending on reference frame. Can someone provide an example please? Thank you!

Thank you. That was very helpful!

why is Tau-AB^2 equal to t^2 - x^2 ?It seems it should be t^2 + x^2 according to the geometry of the diagram...