Recent content by fulis

Thank you :)

I managed to confuse myself with a simple thought experiment. I have a spaceship that uses mechanical springs loaded with balls for thrust. We start in a reference frame O where the ship isn't moving and fire one spring, which gives the ship a velocity v. Pick a new frame O', moving at v in...

This explains it, thank you!

Ok, call it something else if you want, I still mean the \cos{\theta}=v/c case.

Hi, I was looking up the formula for this on wikipedia and it said that the frequency shift is: \frac{\sqrt{1 - v^2/c^2}}{1+\frac{v}{c}\cos{\theta}} In the case where the the emitter is directly above the observer when the photon arrives it says it simplifies to: \gamma =...

A question came up about entanglement and I've only studied very little QM so far, so I went to wikipedia to see if I could become any wiser and they had an example on photon entanglement which was quite straight forward (though the whole page lacks sources =[ ). The example shows that if you...