Recent content by upurg

Awesome, also, if w=v/r, then this force is just gamma^2 * mv^2/r, so all we need to do when going from CM to SR is v->gamma*v ?

Doesnt look like it's corrected, two dots missing, is m rest mass of the orbiting object? And f points radially inwards ?

I want to know what is the equation(s) for circular orbits in SR, in A) electromagnetic force k/r^2 and B) gravitational force if it is possible. Any reference ?

In CM there is this equation of motion for ciruclar orbits: F=k/r^2=m*v^2/r, where k depends on the force involved. I know this gets complicated in GR, but is there a simple expression for circular orbits in SR, what happends to the m*v^2/r ? If the forces are only electromagnetic, does k/r^2...

Why would you think you can't get both parties together, you just need large enough rockets and a brain. Which paradoxes are you talking about?

Ok, let us use the definition of an event horizon simply as a boundary where matter and information can go only one way. If we then get a paradox, we know either our theories are wrong, or that the horizon does not work like that, that i how physics is done

If you don't know what a black hole is, i suggest you stop posting in this thread, the proposition that they can't talk doesn't resolve the fact that there are two contradicting predictions for the state of the detector.

Communication is not lost between two persons inside the black hole. Why it matters? Because its physics and there is an apparent paradox that needs to be resolved ?

Afterwards the outside observer goes inside and they have a nice little chat, they use rockets to counter gravity ofcourse.

No I have not, my hope is that some smart brains has already studied this in the literature

Consider a double slit experiment at the event horizon of a black hole, with 1 slit on each side of the horizon, one observer inside and 1 outside, inside observer should observe interference by equivalence principle, whereas outside one should not, since the photons can't enter the second slit...

This problem too hard, this forum is mostly for highscool-homework I think

I have a system like this: Wall-spring-mass-spring-mass Both springs follow Hooks law with spring-constant k. The masses are both m. At rest, the first mass is at x=1 and the second at x=2 At t=0 the springs are pulled so that the first mass is at x=2 and the second at x=7. Find...