History Of Time Machine
"Time machine" redirects here. For other uses, see Time Machine (disambiguation) . For other uses, see Time travel (disambiguation) . The first page of The Time Machine published by Heinemann Time travel is the hypothetical activity of traveling into the past or future . Time travel is a concept in philosophy and fiction , particularly science fiction . In fiction , time travel is typically achieved through the use of a device known as a time machine . The idea of a time machine was popularized by H. G. Wells 's 1895 novel The Time Machine . [ 1 ] It is uncertain whether time travel to the past would be physically possible. Such travel, if at all feasible, may give rise to questions of causality . Forward time travel, outside the usual sense of the perception of time , is an extensively observed phenomenon and is well understood within the framework of special relativi...