Ads
related to: time4travel
Search results
Results From The WOW.Com Content Network
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.
An objection to the practicality of building a Tipler cylinder was discovered by Stephen Hawking, who argued that according to general relativity it is impossible to build a time machine in any finite region that satisfies the weak energy condition, meaning that the region contains no exotic matter with negative energy.
A time slip is a plot device in fantasy and science fiction in which a person, or group of people, seem to travel through time by unknown means. [12] [13] The idea of a time slip has been used in 19th century fantasy, an early example being Washington Irving's 1819 Rip Van Winkle, where the mechanism of time travel is an extraordinarily long sleep. [14]
The theoretical study of time travel generally follows the laws of general relativity. Quantum mechanics requires physicists to solve equations describing how probabilities behave along closed timelike curves (CTCs), which are theoretical loops in spacetime that might make it possible to travel through time.
Frequently Asked Questions About Time Travel (stylised as FAQ About Time Travel) is a 2009 British science fiction comedy film directed by Gareth Carrivick from a script by Jamie Mathieson, starring Chris O'Dowd, Dean Lennox Kelly, Marc Wootton and Anna Faris.
There have been multiple accounts of people who allegedly travelled through time reported by the press or circulated online. These reports have turned out either to be hoaxes or to be based on incorrect assumptions, incomplete information, or interpretation of fiction as fact, many being now recognized as urban legends.