When you are waiting for something special, time seems to come to a stand-still. For children anticipating Christmas, it can feel like an eternity waiting for Santa to make his world-tour. For adults rushing to get every last holiday detail in place, Christmas can come too soon. And yet the span of days for the children is the same span of days for adults, making our experience of time relative to our frame of reference.
Einstein had a theory when it came to our experience of time. He called it the Special Theory of Relativity. Einstein observed that time moves differently for objects in motio...