Time Machine

Time Machine - information

Time travel means moving people, objects or information between different instants of time, either past or future. Since the beginning of the modern age, people wanted to travel back or forward in time for various reasons.
Some scientists say that traveling into the past would require going to a parallel universe which would result in a change of history from the time the traveler went backwards in time, however, for the moment we don’t really know if traveling backwards in time is possible as the laws of physics do not allow it.

The story is a little different when it comes to traveling into the future as it would be possible thanks to the time dilation, a phenomenon which can be found in Einstein’s theory of relativity. Time dilation can be explained using two physically identical watches and if one of them appears to be ticking at a slower rate when it should be ticking at the same rate then you got yourself a time dilation.


Any device or means of transportation that would make possible time traveling is best known as a time machine, but for the moment we could only see these in movies. One claim about a time machine was revealed by Francois Brune who said that Italian priest, Pellegrino Maria Ernetti invented a so-called “time viewer.” This time machine named Chronovisor gave the Father Pellegrino the possibility of viewing a scene of the lost tragedy, Thyestes, in Rome in 169 BC, and he also said that he saw Jesus Christ dying. Well, the Chronovisor was never confirmed as there were no hard evidence.

Time Machine - Professor predicts human time travel this century

Black holes, wormholes, and cosmic strings - each of these phenomena has been proposed as a method for time travel, but none seem feasible, for (at least) one major reason. Although theoretically they could distort space-time, they all require an unthinkably gigantic amount of mass.
Mallett, a U Conn Physics Professor for 30 years, considered an alternative to these time travel methods based on Einstein’s famous relativity equation: E=mc2.
“Einstein showed that mass and energy are the same thing,” said Mallett, who published his first research on time travel in 2000 in Physics Letters. “The time machine we’ve designed uses light in the form of circulating lasers to warp or loop time instead of using massive objects.”

To determine if time loops exist, Mallett is designing a desktop-sized device that will test his time-warping theory. By arranging mirrors, Mallett can make a circulating light beam which should warp surrounding space. Because some subatomic particles have extremely short lifetimes, Mallett hopes that he will observe these particles to exist for a longer time than expected when placed in the vicinity of the circulating light beam. A longer lifetime means that the particles must have flowed through a time loop into the future.
“Say you have a cup of coffee and a spoon,” Mallett explained to PhysOrg.com. “The coffee is empty space, and the spoon is the circulating light beam. When you stir the coffee with the spoon, the coffee - or the empty space - gets twisted. Suppose you drop a sugar cube in the coffee. If empty space were twisting, you’d be able to detect it by observing a subatomic particle moving around in the space.”