We’re expecting Doctor Who any day now…actually, we’re expecting him yesterday.
Physicists Just Came Up With a Mathematical Model For a Viable Time Machine
“Mathematically, it is possible.”
Physicists have come up with what they claim is a mathematical model of a theoretical “time machine” – a box that can move backwards and forwards through time and space.
The trick, they say, is to use the curvature of space-time in the Universe to bend time into a circle for hypothetical passengers sitting in the box, and that circle allows them to skip into the future and the past.
“People think of time travel as something as fiction. And we tend to think it’s not possible because we don’t actually do it,” says theoretical physicist and mathematician, Ben Tippett, from the University of British Columbia in Canada.
“But, mathematically, it is possible.”
Together with David Tsang, an astrophysicist at the University of Maryland, Tippett has used Einstein’s theory of general relativity to come up with a mathematical model of what they’re calling a Traversable Acausal Retrograde Domain in Space-time (yep, the acronym is literally TARDIS).