Scientists have confirmed the reality of time travel

Professor of physics and mathematics at Columbia University and co-founder of the world science festival Brian Greene said that scientists know about time travel.

It is very important that you understand that there are two types of time travel, and they are radically different. Travel to the future is definitely possible. We know how to do it, because Einstein showed us the way over a hundred years ago. It's amazing how little people know about it. He showed that if you go into space and fly at relativistic speeds, your watch will go slower. Thus, when you return, the Earth will already be far into the future.

He also showed that if you hang out near a powerful enough source of gravity — neutron star or black hole and closer to the edge of this object to a safe distance, time for you also will slow down relative to everything else. And then when you return to the Ground, it will once again be in the distant future.

There's no doubt about it. Any physicist who knows what was going on, agree with. But another kind of time travel — travel back in time — this is the topic for discussion, and most scientists believe is impossible.

The basic concept which usually pay attention to when discussing time travel to the past, connected with the so-called wormholes, or krotovym donors. Roughly speaking, it is a bridge from one place to another or a tunnel, which offers you the shortest path for the transition. Einstein discovered this phenomenon in 1935, but later realized that if you manipulate the holes in the wormhole close to the black hole or move at high speed — then time in two bores of this tunnel will go at different speeds, so you will no longer just jump from one place in space to another. If you pass through this tunnel will take you from one time to another time. Following one way, you travel into the past, while others — on the contrary, in the future.

But we don't know whether they are real or can you go through them. Thus, there are all kinds of uncertainty. Most scientists believe that you will not be able to get through the wormhole in the past, but on the other hand, it is still not excluded.

Translated by «Yandex.Translator»