The concept of time is a phenomenon that people have been thinking about since the existence of mankind, but they have not fully understood how it works. We can perceive the time, but we can not hold it by hand, we can not see it, we can not hear it, we can not prevent it from running away.
A genius appeared in the early 20th century. He asked himself a question that no one in the history of mankind had ever asked before.
How could I see the universe if I could ride on the light?
This question of Albert Einstein has opened doors to us that allow us to see the universe in ways we have never seen before. Einstein, by explaining his experiments of thought through mathematics, showed that time is actually the fourth dimension and that space and time are not absolute, unlike what was known before.
Time is Relative, Time Is Variable.
Depending on your speed, the time-perception changes. If you are accelerated, time will flow more slowly for you, compared to people who are slower than you. When you approach the speed of light, time is now at the stopping point.
Is The Speed Of Light Reachable?
It is theoretically impossible to reach the speed of light. Maybe 99.999999% of the light speed can be reached, but it is not possible to reach 100% light speed. Because, the photons that form only the light, which is massless and pure energy, can move at the speed of light. Technically, when you reach the speed of light, you lose mass and you become a photon
What Is The Correlation Between Light And Time?
The speed of light is the only physical greatness in the universe. The light is an electromagnetic wave with a more general definition. Photons, which are carrier particles of electromagnetic waves, move at the speed of light. This speed is about 300,000 km/sec in the space.
Thanks to Einstein, we know that what is called speed is relative. So if you are in a car traveling at 100 km / h, you will see the car with speed of 120 km / h coming from the opposite side at 100 + 120 = 220 km / h. A person standing on the ground can see that one vehicle is traveling at 100, the other at 120 km / h. Now, imagine that the headlight of the other vehicle is open. Now, there is also a headlamp light coming towards you with the car. The speed of this light should be 100 + 120 + light speed, right? The answer is no. Whether you or the car from the other side, at any speed, you perceive the speed of light as 300,000 km per second in any case.
"But this is contrary to mathematics!" You might say. Nothing in the Universe can be contrary to mathematics. The mathematical expression of speed is distance/time. In order to fix the speed of light by holding the distance constant, it is necessary to play with the time magnitude. This shows us that the time is relative and that the speed of light is a constant magnitude in the universe.
Why is Light Speed Constant?
We do not know the answer to that. What we know is that the photon that was created in the big bang started its journey in the universe at this speed, and it continues in this way. I used to watch quite a lot of science fiction movies. When I got to know science and I started to learn about the weirdness of the universe, then I realized that science itself and the universe are even strange than science fiction stories.
References
- Zaman Nedir? Zamanın Göreceliği ve Işık Üzerine
- What is the fundamental reason of the speed of light being constant in all frames of reference?
- Physics Explained: Here's Why The Speed of Light Is The Speed of Light
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