nopers, the speed of light remains unchanged through all medium.
the frequency also remains unchanged through all medium, and therefore its wavelength as well.
the only thing that changes with the index of refraction is the angle of refraction i.e. the angle at which light leaves the...
It would be different though. Using Earth as the reference frame (as I stated above, only the Earth reference frame can be used in the twin paradox - the twin who states that he who was in the spaceship aged less than the twin on Earth is the only one who is correct - he is in a...
actually.
how would the second twin (who is traveling at 0.99c or thereabouts) not enjoy a greater longevity? in an Earth reference frame (we have to use this reference frame. the twin on the spaceship was accelerating when he turned around at the end of his journey as well as at the...