Is time travel possible?
The series is available in both German and English,
but you should know some advanced science terms before watching.
Theory of Relativity: According to Albert Einstein’s theory of
relativity, time and space are the same thing, and that time
is not an absolute thing. This means that the speed of time can
vary depending on location and speed. This could mean that if
a person traveled at a very high speed, they could slow down
time, and thus travel into the future.
Wormhole:
A wormhole is an imaginary geographical shape that
can connect two different places together. If wormholes exist,we can use them to travel to the past or future.
Quantum Mechanics:
According to quantum mechanics, nonlocality
is a phenomenon in the universe in which a particle can exist
in two different places at the same time. It provides a theory
for using nonlocality to travel to the past or future.
Grand Father Paradox:
Let’s get down to business, let’s say you have a watch that allows
you to travel to the past or the future. One day you wish you
could go back to the year 1920 and kill your grandfather.
Do it – you press a few buttons on this clock and suddenly
find yourself with your grandfather who is standing on a mountain
in virginity enjoying the view of nature .You never liked your
grandpa so much. You push your grandpa off the mountain and he
falls into a ravine thousands of meters deep.
But wait – if you killed your grandfather before your father was born,
that means you have no chance of being born – if you’re not born,
then obviously you can’t go into the past. So there is no possibility
of you killing your grandfather because you are not born. If you
didn’t kill your grandfather, that meant your father would be
born to him and your father would be born to you .So there’s
a chance you could go back in time. And will be able to kill
your grandfather and this contradiction is famous as grandfather paradox
and this type of contradictions in the past made travel virtually
impossible
The Grandfather Paradox involves going back several decades.
Time Dilation:
Now let’s take an example where the time difference is smaller .Suppose
you(Kerr) and I are wearing the same watches and we both get the time on
those watches. Kerr believes that both clocks are showing the same
time .Later I go into space where I travel at a
speed of 28000 km per hour and after a few orbits around the earth I
land again and look at the time on both watches and find that my
watch is slightly behind. Although this difference is very small,
but this difference is definitely there this phenomenon is famous as
time dilation. According to Einstein’s theory, when objects either
travel at very high speeds or are under the influence of very
strong gravity, the speed of time slows down. An example of this
time dilation is when Astronauts return to Earth after spending
six months on the space station. The age increase is about five
milliseconds less than that of people on Earth and a difference so
small as to be negligible. If the same astronauts spent six months
in a spaceship traveling at the same speed. At 99% of the speed of
light, the difference would be huge – interestingly that even if the
speed of an object is 70% of the speed of light, the difference will
be negligible, but as the speed of the object approaches the speed
of light, the difference will increase.
What’s even more surprising is that according to the theory of relativity,
the length of a moving object shrinks in the case of extremely
fast motion and not only that, the distance in the direction
of motion shrinks and if your speed is 90% of the speed of light and
you want to go to a place that is ten light years away,Perhaps you
would expect you to complete your journey in eleven years. It
is true that if someone was observing your spaceship from Earth,
they would observe that it took you eleven years to complete the
journey .But the observations of those aboard the spacecraft will
cut the journey to just 4.4 years.
But is it really time travel? Although it is not famous as time
travel according to the general concept of time travel, if you
understand space and time, then it is time travel and if you
come back to earth at 90% of the speed of light, you will have gained
almost nine years in age,but your companions who stayed on Earth
would have had their ages increased by a full 22 years. So in a
way you could have traveled 13 years into the future.
Traveling into the future is possible and easy and you can see most
of the science fiction about it, but breaking into the past is
difficult and interesting. This is also our topic.
Close Time Like Curve:
Some scientists believe that it would be possible to travel to both
the past and the future by traveling through space in a certain way
but doing so would require a motion known as a closed time-like
curve (CTC). There is a kind of circle in spacetime that basically
allows one to go into one’s past.
The science behind time travel is very complex and speculative .Many
scientists believe that time travel is not logically possible because
it defies the laws of causality. The best example of this is the
grandfather paradox about which we discussed at the beginning.
If these scientists are correct in their claim that time travel can
create many contradictions, then the logical conclusion is that time
travel is impossible but on the contrary.
Novakov’s Self Consistency:
If Novakov’s self-consistency
is true then there is a possibility of going back in time .Novakov’s
principle that if an event is possible that would create a contradiction
or change the past, then the probability of such an event is zero so
it is impossible to create contradictions by traveling to the past but
most scientists do not accept Novakov’s principle.
Use of Worm Holes:
Another possibility is to use wormholes to travel back in time .In principle we can relate the physics of wormholes to the mathematics of
relativity .To travel back in time we would need a transversable
wormhole. For that you need more complex and unfamiliar physics.
Going past, we can describe a wormhole in two ways – the first
way is to accelerate one end of the wormhole to close to the speed
of light and then bring it back to the other end .Time dilation causes
this end of the wormhole to an observer in a different reference.
Time would slow down if it traveled at speeds close to the speed
of light .
– Another way is to bring one end of the wormhole near a
black hole so that the gravity at one end is much greater than at the
other end.After that, the two ends should be brought together again.
The concept of a wormhole is very difficult to understand .Let’s
try to understand it with an example – suppose we both match our
clocks in the year 2000 .Then we are at one end of the wormhole
in our spaceship. Reach and grab that end and travel at the speed
of light. Later I bring back the end of the
wormhole .Now my watch will be showing the year 2004 but your
watch will be showing the year 2012. Now if someone enters the end
of the wormhole in 2012 that we captured, If he traveled at high
speed and came out the other end, he would find himself in the year
2004 .He will then be at the same point in space where he was
before but now he will be 8 years in the past.
This hypothesis can be easily understood with a sheet of paper.
Think of the paper as space-time.A wormhole is curved spacetime
with one entrance and one exit.Think of it as turning the paper
is repeated and a hole is punched in both of these layers.
Instead of traveling from one point to another through
space-time, the paper in between is passing through these holes and
reaching from one place to another.
One problem with this type of wormhole is that you can travel back in
time, but not to the era before the wormhole was created – so it can’t
be a means of going back in time, although it does short-circuit time.
It can even be possible that future beings through it in their past.
Reach the time when this wormhole was created but if this wormhole is
created today, we cannot use it to go back to the era of dinosaurs.
Cryopreservation:
Another possible way to travel through time is to preserve the
human body for a long period of time, which is called cryopreservation. The
field of science that deals with the long-term preservation of humans.
Called Cryonics.It has been researched since the 1960s.By
moreIt can be called a more speculative science .Its proponents
say that death does not come at a specific time, but is a complex
process.If the person is saved before the process begins, the
person can live indefinitely.But the problem is that it is legal
to freeze humans before they die.So if a person wants to preserve their body,
it is frozen immediately.After their clinical death,keeping the body
temperature at minus 130 degrees Celsius is likely to preserve
brain structures for years.And it will be preserved until future doctors
and scientists can use this person with better technology and can revive.
But this low temperature can damage the human body, no matter how
carefully it is preserved.So doctors today can only hope that
in the future technology will be so advanced that preserved brains
can survive.If in the future technology is advanced enough to resurrect
preserved humans in such a way that these humans will have traveled into
the future,it’s not as simple as science fiction stories but in principle it
is possible to do this.So this is time travel in a nutshell.You can travel
into the future by super-fast travel or cryopreservation technology but
travel into the past is impossible.The science of quantum physics and
time travel is extremely complex for the average reader to understand.
So we may not be able to understand that how Space Time Works.But what if
one day a traveler from the distant future comes and teaches us the technology
of time travel.But doing so can be self-contradictory.
Dark(german series)
NOTE:- Most of the scenes in the series are 18+ so don’t watch with family and children.
Story From Series(Dark):
The story of this series begins in 2019 when suddenly small children disappear
and no one knows what is happening.Suddenly birds start dying and such changes
happen that everyone is shocked.
For about seven episodes, this series is completely boring and
egoistic, but the real twist of the story starts after this episode when an
eleven-year-old boy suddenly disappears into a cave (what you might call a
wormhole on Earth), the boy’s father and brother, etc., set out to find him.
By following him, he goes to this cave and enters 1989. Now in 1989 the boy
is actually the older boy’s father, meaning he sees his father’s childhood
in the past.Now when the father whose son has disappeared enters this cave to
find the boy, he also goes to 1953 and sees his parents and his childhood.
What happens next? Who messes with this time? All these will come in the eighth episode.
The scientific information of the article is taken from the wall of Qadeer Qureshi
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