Is it possible to travel through time and what technologies might help humanity to develop a time machine?

October 03, 2019

Almost everyone wants to travel through time . Some of us want to travel through time very fast.some of us wants to go back and undo what they regret doing in life.

Unknowingly, without even realizing, we all have traveled in time.  During the last year, I've moved forward one year and so have you. Another way to say that is that we travel in time at the rate of 1 hour per hour.

But the question is, can we travel in time faster or slower than "1 hour per hour"? Or can we actually travel backward in time, going back, say 2 hours per hour, or 10 or 100 years per hour?

The great 20th century scientist Albert Einstein developed a theory called Special Relativity. The ideas of Special Relativity are very hard to imagine because they aren't about what we experience in everyday life, but scientists have confirmed them. This theory says that space and time are really aspects of the same thing—space-time. There's a speed limit of 300,000 kilometers per second (or 186,000 miles per second) for anything that travels through space-time, and light always travels the speed limit through empty space.

Special Relativity also says that a surprising thing happens when you move through space-time, especially when your speed relative to other objects is close to the speed of light. Time goes slower for you than for the people you left behind. You won't notice this effect until you return to those stationary people. So if you develop a technology that would help you to travel through space then you might be able to travel to future in a short period of time.



Time travel of a sort also occurs for objects in gravitational fields. Einstein had another remarkable theory called General Relativity, which predicts that time passes more slowly for objects in gravitational fields (like here on Earth) than for objects far from such fields. So there are all kinds of space and time distortions near black holes, where the gravity can be very intense.

In the past few years, some scientists have used those distortions in space-time to think of possible ways time machines could work. Some like the idea of "worm holes," which may be shortcuts through space-time. A worm hole is effectively just a tunnel that connects two places in the universe.So far scientists have simulated this process,but are nowhere near creating a gravitational worm hole,as it would require to create a huge amounts of gravitational energy.So if you figure out a technology that can do this than we can create a worm hole or black hole which can help to travel through back and forth time.



This and other ideas are wonderfully interesting, but we don't know at this point whether they are possible for real objects. BUT LETS KEEP TRYING TO FULL-FILL OUR  FANTASIES.

BY AIMINATH INAN 
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