July 21, 2024
The Waverider (timeship) from Dc’s Legends Of Tomorrow

Time travel — moving between different points in time — has been a popular topic for science fiction for decades. Franchises ranging from “Doctor Who” to “Star Trek” to “Back to the Future” to “DC’s Legends Of Tomorrow” to “The Flash” have seen humans get in a vehicle of some sort and arrive in the past or future, ready to take on new adventures.We’re all constantly engaged in the act of time travel. At its most basic level yes, but we time travel everyday. Time is the rate of change in the universe, and like it or not, we are constantly undergoing change. We age, the planets move around the sun, and things fall apart. We are constantly moving ahead in time.

Light takes millions of years to reach to earth from other galaxies, planets, stars, etc. So in reality whatever are we seeing, through a telescope, is looking into the past. Interesting isn’t it.

Stephan Hawking, Albert Einstein, Issac Newton playing cards with Data (Star Trek)

For understanding how time travel works, you need to understand what’s Time. :-

Time

What is time? While most people think of time as a constant, physicist Albert Einstein showed that time is an illusion; it is relative – it can vary for different observers depending on your speed through space. To Einstein, time is the “fourth dimension.” Space is described as a three-dimensional arena, which provides a traveller with coordinates – such as length, width and height -showing location. Time provides another coordinate – direction – although it only moves forward. Einstein’s theory of special relativity says that time slows down or speeds up depending on how fast you move relative to something else. Approaching the speed of light, a person inside a spaceship would age much slower than his twin at home. Also, under Einstein’s theory of general relativity, gravity can bend time.In a sense, this effect, called time dilation, means astronauts are time travellers, as they return to Earth very, very slightly younger than their identical twins that remain on the planet.

General relativity also provides scenarios that could allow travelers to go back in time, according to NASA. The equations, however, might be difficult to physically achieve.One possibility could be to go faster than light, which travels at 186,282 miles per second (299,792 kilometers per second) in a vacuum. Einstein’s equations, though, show that an object at the speed of light would have both infinite mass and a length of 0. This appears to be physically impossible, although some scientists have extended his equations and said it might be done. So how do we travel in time?

THROUGH WORMHOLES

 Another possibility would be to create “wormholes” between points in space-time. Also, scientists haven’t actually observed these wormholes yet. Also, the technology needed to create a wormhole is far beyond anything we have today.

 

A wormhole would allow a ship, for instance, to travel from one point to another faster than the speed of light – sort of. That’s because the ship would arrive at its destination sooner than a beam of light would, by taking a shortcut through space-time via the wormhole. That way, the vehicle doesn’t actually break the rule of the so-called universal speed limit — the speed of light — because the ship never actually travels at a speed faster than light. Theoretically, a wormhole could be used to cut not just through space, but through time as well.
This is not the only way!!
There are other ways like –
By Time Machines : Machines which use matter with negative energy density.
Doughnut shaped vacuum containers where space-time could get bent upon itself using focused gravitational fields to form a closed time-like curve. To go back in time, a traveler would race around inside the doughnut, going further back into the past with each lap. (As shown in The Flash)
doughnut shaped place where the flash runs around  to travel in the past or futur.

And many more ways!!

Consequences of Time Travel –
Grandfather Paradox: This paradox is created when a Time traveller alters the time line and causes an aberration that changes the timeline, creates an alternate reality, an parallel universe. an example of this paradox is Flashpoint when the Flash saved his mom in the past creating another timeline. But how much you try to change the alternate timeline and bring you to the original timeline, there will be some changes everything wouldn’t be the same. Another classic example is the grandfather paradox, in which a time traveler goes back and kills his parents or his grandfather — the major plot line in the “Terminator” movies — or otherwise interferes in their relationship — think “Back to the Future” — so that he is never born or his life is forever altered.

If that were to happen, some physicists say, you would be not be born in one parallel universe but still born in another. Others say that the photons that make up light prefer self-consistency in timelines, which would interfere with your evil, suicidal plan.

This video shows Barry(The Flash) explaining change in the time line that affected every ones life. ↧
Time travel is very dangerous thing.

 

BUT

 

 

 

 

Evidences – currently we have found peculiar pictures of people that might be time travellers. NOTE – The aren’t photoshoped

 

So in my opinion Time Travel is possible. what do you all think? Right your thoughts about Time Travel in the comments section below.

P.S – The Flash and DC’s Legends Of Tomorrow are my favrouite TV serials.
DC’s Legends Of Tomorrow is all about saving the time line and reality.

Any doubts please feel free to ask them in the comments sections below.

3 thoughts on “Time Travel

  1. Very informative. U have. A very clear concept of thinking. N very appropriate way of writing making every one reading ur blogs understand it easily. Reading ur blog wish time travelling was possible. Enjoy reading ur blogs. Write more soon ?

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