Sorry if this is obvious, but I've searched and cannot find this answered.
taking a minor change to the light clock experiment on a traveling spaceship.
putting the clock in the horizontal position, does the light appear (to the outside observer) to move faster in one direction than the other? It must, correct? assuming you have two light clocks that are both horizontal, one on top of the other. but the light starts from opposite sides. the light in the clocks must appear to leave at the same moment, and arrive at the other side at the same moment, but both photons are covering different distances.
I understand that length contraction affects the space, but I don't understand how it would affect it to account for this difference. wouldn't the length be the same? contracted in the direction of the ships movement, but still, it's the same space being traveled?