Time Travel Possibilities, Theories, Facts and Many More
Time Travel is a concept in which one is supposed to travel in the past or future just like we travel left or right or up or down through a time-travelling ship probably known as a time machine. You may have heard about the concept of time travel in various sci-fiction movies like tenet, See You Yesterday, Predestination and many more. But at last its all fiction and fantasy.
Hey this is Chirayu from the internet shufflers today in In this article you may get to know information about time travel, time dilation and some geeky concepts in Physics and Cosmology.
We all accept the thing that there are three dimensions in the universe i.e length width and height. But according to Albert Einstien's theory of Relativity Time is the Fourth Dimension.
Let's Suppose that travelling to the past is possible at what age would you like to go. But if we supposed that travelling to the past is possible then we have to solve some of the paradox which arises due to travelling to the past. Let me tell what actually a paradox means by an example of the grandpas Paradox.
This kind of cycles is called a paradox. There are various kind of paradoxes which we will be discussing in another such article.
Another example which tells us that travelling in the past is impossible is the Hawkings Party. In June 28,2009, the great theoretical physicist and cosmologist Sir Stephen Hawking conducted a party at his place and invited no one until the party was over. He sends an invitation card to everyone from the next day. He said that He waited there for hours but no one came in his documentary Into the Universe with Stephan Hawking.
From this kind of incident, we can conclude that travelling in the past is not possible. And
Time is Linear
Which means
that time flows in only one direction. But another question which arises here is
Can we travel to the future? SO the answer is actually yes but no. Let's discuss it now.
We can
travel fast than time (travel in future). To understand this we first need to
understand the concept of time dilation. If one travels at the speed of light (299 792 458 m / s) or more than it, then he/she will
be able to travel ahead of time i.e travel in future. This confusing concept is
called time dilation in Physics. IN simple words
The faster
you travel in space the slower you move in time
If you are
an astronaut and surfing the space the same way we surf the internet to find a
planet like earth to migrate people from earth to it and you find one. So you
have decided to go back to earth and tell people about your discovery so you
start travelling back to earth (Your speed
is greater than the speed than light). After a great effort, you reached Earth
but you will be shocked. Because people of your age i.e your friends and colleges
will be much older than you. Because for you, you have spent 2 years in space
but for people on Earth, you have been out from the earth for literally 80 years.
This is the best example of time dilation.
Due to time
dilation you will age slowly.
Astronauts
in the International Space Station(ISS) are travelling in the future ahead of
us by 18 milliseconds.
Another
theory about time travel is about Wormholes which we will be discussing in
another article. What are your views about time travel let me know in the comment
section? Let e know which topics you need to know from me.
If you have invented the time machine then never forget to
visit the hawkings party on 28 June 2008.
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