time dilation

  1. A

    I can not wrap my head around the Einstein's time dilation

    Person A stands next to person B and then takes off to alpha centauri. In each situation below What A sees in B and what B sees in A, time wise only. I want to see this kind of answer only: [[A up. B down]]. A up means A sees the time on B to speed up. B Down means B sees the time on A to slow...