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Traveling Back Into the Past: Is It Just Fiction or Can It Be Reality?

We all have regrets, what ifs, and other things that we wish we could change in the past. If only we could go back and do things differently.

A lot of people have asked the question of whether time travel into the past is even remotely possible, let alone feasible with the technology that we have today. And the answer is: yes, it's possible. But only if you have an object with infinite mass.

Caroline Mallary, a doctoral student at the University of Massachusetts Dartmouth has published a new model for a time machine in the journal Classical & Quantum Gravity. This new model does not require any negative mass exotic material and offers a very simple design.
Mallary’s model consists of two super long cars – built of material that is not exotic, and have positive mass – parked in parallel. One car moves forward rapidly, leaving the other parked. Mallary was able to show that in such a setup, a time loop can be found in the space between the cars.

Read more on The Conversation.

(Image credit: Wikimedia Commons)


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