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To begin an experiment:
The buttons functions are:
The light slows down to the right, speeds up to the left and just makes it back in time.
Length contraction makes the horizontal distance shorter, and just cancels the time slowing (dilation) so the slower light makes it back in time.
The observer still sees the light travelling the same speed, but length contraction always balances the slower time dilation.
Light always travels the same speed, it's an optical illusion that makes the length look shorter and time slower.
You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button.
I received no help from anyone on this assignment.