Recent content by Charlie X

the formula of Doppler Effect f = fs(v + vd)/(v - vs) (v = speed of sound; d = detector; s = source) Simply from this formula, it can be seen that vd has differenct effect on the frequency receiver from vs. when vd or vs approaches the speed of sound, this difference is pronounced. make...

Then he would have two sets of time?

do you imply that if the observer accelerates the distances would be different?

wow~thx. but for the 1st question, the two beams are from sources outside the ship and are in opposite directions would the distances he measures still be the same?

1st Q~ if a man in a spaceship traveling at say 0.5 c measures two beams of light outside the spaceship that are in opposite direction. (the two beams are from sources outside the ship) he would measure both light's speed as c as the einstein says. however, the distances for the two beams he...