A professor of theoretical physics at the University of Connecticut believes he has found a way to build a time machine using light. He thinks that a circulating beam of light, slowed down almost to a snail’s pace, might be the answer. ?With this device,? says Mallett, ?time travel may become a practical possibility.?
It?s not simple, since slowing down light requires temperatures close to absolute zero, but if it works the way it should, this device would provide time travelers from the future with their first gateway into our history…and given the strides that are being made in slowing light, some of us may actually be among the travelers.