Recent content by hypernihl

I have to disagree, but good night sir!

Why? they left the source at the exact same time. One traveled in a straight line the other took a curved path around the sun? What is varying in the ratio of distance over velocity that says the photon travels at v=c? Flat-space - curved-space ><=(etc) 0?

So, two photons starting from the same source, each traveling very different paths in space, arrive at the same time? How is that that sci-fi? I guess from the feedback I have gotten so far, the question should be, is there a non-zero difference between two photons traveling in flat space...

Yes it makes a straight line locally, but do all those "local" paths add up to the total distance globally? I see this, but I always see these arguments for time-travel that utilize the fact that space-time is curved and light can get to one point faster than it can another? Thanks for...

I was more interested if the following exist in any cases, (length contraction)/(time dilation) = c Clearly this would be some sort of conservation of c? Of course a postulate cannot be proven, You can't prove Newton's (F=ma) or Schrödinger's (i*hbar*delt*psi=H*psi) equations. I just...

I think in academia there is more of a level playing field as to who can be a prof. and who can't. There is clearly a greater number of non-American Ph.D.'s in the U.S., so more non-American Ph.D.'s are likely to be picked. Al so in sciences, especially physical science there are many jobs in...

Hello all, Would like to get some feed-back on some questions I had about special/general relativity and a thought experiment. In the case of gravitational lensing, an obvious case being the Earth is lined up with the sun which is lined up with a distant star. From Earth the star is seen...