How Einstein Thought of The Theory of Relativity?

In 1894, a 16-year-old German boy on the last bench asked his teacher a question. Instead of answering his question, the teacher threw him out of the class. The boy's name was Albert Hermann Einstein. Einstein went out of the class at that time, but the question still lingered in his mind. The question was, how will the world look when you run at the speed of light? Now, it sounds like a childish question, right? But this childish question was going to shake the foundation of Newton's genius sci

entists' gravitational theory. And the most groundbreaking theory of physics will give birth to relativity. So how did Einstein change this simple question into a new concept theory? And what did Einstein see in Newton's theory that made the theory that everyone believed in for 200 years to be the word of God, wrong? Now, Einstein's theory was wrong. Groundbreaking theory, such groundbreaking ideas, how can anyone think of that? How do these scientists think? Can I also think of something like t

hat? If yes, then how? Well, today you will understand from Einstein's story that how his whole theory was born and how evolution happened. How and how did he get those deep ideas? Who showed him that truth that millions of people could never see. And that's why I would highly suggest that you watch this video completely. Because being a science enthusiast, when I read Einstein's story, I personally felt very eye-opening. Which inspired me to see this world from a different perspective. So let's

get right into it. Now friends, in the beginning I would like to highlight this point that many people think that Einstein's relativity, which explains gravity, is created by Newton's theory of gravity. So let me tell you, you guys are absolutely wrong. Because Einstein's theory of gravity is created by Newton's theory of gravity. Which has no relation with gravity at all. So who are you? Newton had put three fundamental theories in front of the world in his time. The first theory, gravity, acc

ording to which two bodies, even if they have mass, attract each other. The second was particle theory, according to which light travels from one place to another in the form of small particles or corpuscles. And the third was relativity. Yes, Newton also gave a theory of relativity. But if they travel in the opposite direction, their speed will double. In short, speed or motion is relative. The speed of everything depends on your own speed. Now you can see that these three theories are quite di

fferent things. Like gravity, light and motion. In their first sight, there is no connection with each other. But you know what's the weird part? These three unrelated theories were going to combine and give birth to Einstein's relativity. Actually, these three theories began to combine in 1678. When Dutch physicist Christian Huygens challenged Newton's light corpuscular theory. According to Newton, light travels in the form of small packets of energy. But according to Huygens, light bends when

it goes from one medium to another medium. And that's why it should travel in the form of a wave, not a particle. But because Huygens didn't have any experimental evidence to prove his theory at that time. That's why no one accepted his theory for the next 100 years. Until 1801, when a British physicist Thomas Young proved Huygens' wave theory with his famous double slit experiment. Young basically passed light through two slits and observed them on a screen. And he saw that both the light beams

coming out of the slit were showing an interference pattern like a wave. That is, they were showing alternate light and dark bands. That is, for the first time, Young's experiment proved Newton's theory wrong and proved that light is indeed a wave. But wait, let's hold on a bit over here. We all know that to travel any wave, we need a medium like water or air. In this case, there is only a vacuum in outer space. So how does light travel there? This question was bothering many scientists at that

time. But how did scientists find the answer to this question? Before understanding this, I want to discuss a big problem that is happening in India. I don't know about you, but these days I see this trend that people are getting bald at a young age. Their hair is also breaking. Now the main reason behind this is stress all day, but no one can stop working. And for this Ayurvedic solution, the people of the Hakki-Pikki community of Karnataka have made this Adivasi hair oil by collecting herbs f

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l also get a 10% discount on taking my name. And that's why you can order this oil directly from their website. So that you get the original Ayurvedic solution and the money for the hard work of this community. And now coming back to the topic. We were discussing that there is only vacuum in outer space. So how does light travel there? In response to this, a group of scientists hypothesized that from where light comes to the earth, there is a field within that space medium which we can't see. We

can touch it or feel it. But through that medium, light travels. That medium is called Luminiferous Ether. Now as I said, this was just a hypothesis. It has not been proven experimentally yet. And that's why two scientists from the same group of scientists, Albert Michelson and Edward Morley performed an experiment in 1887. And you won't believe, the results of that experiment were so embarrassing that it is considered to be the greatest failed experiment so far. Look, Michelson and Morley's th

eory was quite simple. According to them, if there is Ether and it is flowing in one direction, for example, west to east, then in such a case, when the light is flowing in the direction in which the Ether is flowing, it should travel in that direction, then its speed should be fast. And at the same time, when it travels in the opposite direction of the Ether, then its speed should be low because the resistance of the field is being created. Simply speaking, Michelson and Morley thought that if

we prove that the speed of light changes, then the existence of the Ether will also be proved automatically. But in front of them, of course, the only question was how to prove it. Then they realized that in Young's double set experiment, both the light waves were making an interference pattern due to coming from the same direction and the same speed. Now in this case, if two light waves of different speeds collide with each other, then the interference pattern between them should break. And to

verify this assumption, they sent the light waves in two opposite directions and reflected them with a mirror so that they again came to the same point and made an interference pattern. But when they performed this experiment, once again, they were extremely, extremely disappointed. They did not see any change in the interference pattern of both the light waves. This means that two important things have been proved. The first is that there is no medium like Luminiferous Ether. And the second is

that light always travels in all directions at the same speed. That is, its speed is constant. Which means, all in all, the Ether that was experimented to prove its existence, because of that, the concept of Ether was disproved forever. But as soon as Michelson and Morley proved that the speed of light is constant, the second unpopular theory of Newton, Relativity, made a comeback again. And because of this, further on, Einstein had to create a new theory of Relativity himself. So in 1905, Einst

ein had a thought in his mind, that according to Newton, the speed is relative. It means, the speed at which I am traveling, if someone comes in front of me at the same speed, then I will be able to double-perceive his speed. So let's say, I travel sitting on the beam of light, and another beam of light comes in front of me, then I should be able to double-perceive its speed as well. Right? But just now, we saw that Michelson and Morley proved that the speed of light is constant. Which means, if

the speed of light doubles, then it is not constant. And if it is constant, then the speed is not relative. Which means, if you think one thing is right, then the other thing is breaking. And a paradox is being created. So here, who is right and who is wrong? For this, Einstein performed a thought experiment. He imagined a train traveling at the speed of light. He imagined a train traveling at the speed of light. At both the endpoints, the light is flashing. Now, in this case, when they stand o

n the platform, then they will see both the lights flashing at the same time. But when Einstein will board the same train, then they will see the light of the first train box flashing first. This is because the light beam coming from the first train box, to travel to Einstein's position, will have to determine a less light distance. And the light coming from the last train box, which has to come back to Einstein, will have to travel a greater distance. Which means, long story short, Einstein saw

that, if you look at it from two different perspectives or frame of reference, the speed of light is coming out differently. But, as we discussed earlier, the speed of light is constant, right? So, what exactly is changing? Well, Einstein thought that, if both the lights are reaching at the same time, when they are standing on the platform, and when they are sitting on the train, both the lights are coming at different times, then what if time is that thing, which is actually changing? And that

's where Einstein's special theory of relativity was born. According to which, the faster we travel in space, the slower time will be for us. And one point will be that, if our speed is so fast, then time will stop for us completely. In other words, this thought experiment of Einstein proved that, time is a relative concept, which works differently in different frames of reference. But, there was a twist. You can see, how ironic this is in itself. Because usually, the general version of somethin

g comes first, and then the special version comes after that. But, this is probably the only theory, where the general version of something has come because of the special version. Now, the question is, how did Einstein's special theory of relativity become the general theory of relativity? So, in 1905, Einstein came up with his special theory of relativity, which was published in the New York Times. But, he himself was not completely satisfied with his theory. Because, the special relativity th

eory he made, was telling that time will stop at the speed of light. But, the mechanism behind why this would happen, was not being explained. That is, Einstein was also going through the same dilemma, that Newton was going through 200 years ago. In his theory, there were some observations, which he was not able to fully explain, that what is his reason, what is his origin. Like, he was not able to do anything. Well, today we know that the answer to both of these things is the curvature of space

-time fabric. But, at that time, Einstein and Newton were both unaware of this. And, that is why, very soon, Newton's gravity and Einstein's special relativity were going to merge. It was just going to take 10 years for Einstein to understand this. In fact, Einstein asked himself, suppose you are walking on an empty road, when will your speed decrease? Obviously, when the gravity of gravity So, what if time travels with a medium that affects its speed? And, to explain this, Einstein imagined a s

pace-time fabric, or his hypothetical medium, which was capable of making time fast and slow. This immediately solved two problems. First, in Newton's theory, what is the relationship between mass and gravity? The problem that had arisen, was solved. And secondly, why would time slow down, while keeping light constant? The answer to this was, basically, he thought that planets, black holes, and moons, like all celestial objects, which also have concentrated mass, all of them, create pits in the

space-time fabric. And, when an object falls into this pit, we will feel that, actually, that object is being attracted towards another massive object. This means, with this visualization, Einstein gave the answer as to why and how gravity attracts objects. Along with this, this pit is the object where the light travels. Now, instead of a light, it travels in a flat space, and instead of a flat space, it travels in a longer distance, which is called the curved space time. It is the same thing wi

th the curved space-time fabric. So, when light travels, it travels at a greater distance than the flat space-time. And, because light's speed is constant, to experimentally verify this theory. For this, in 1915, Einstein published his paper on General Theory of Relativity, in which he mathematically proved the connection between gravity, light and space-time. But maybe you don't know this, that along with mathematical proofs, Einstein successfully experimentally proved the theory of GTR. With t

he help of General Relativity, he came up with a solution to such a big problem, which no scientist has been able to solve in the last 200 years. So the thing is, when Newton's gravitational theory was applied to the planets of the solar system, then Newton saw that his theory was accurately predicting the orbits of all the other planets, except for Mercury. Because when astronomers observed Mercury, they saw that Mercury's orbit was tilted at a specific angle every 100 years. But Newton's calcu

lations did not predict any such tilt. In Mercury's case, Newton's predicted results were not matching his observed results. Many scientists tried solving this problem, but they failed. In such a situation, when Einstein then applied the principles and equations of his General Theory of Relativity to her orbit, then his results matched his observed results very well. And so Einstein used this as an experimental proof and published his paper. In fact, it took four years for the paper to be publis

hed, After this, in 1919, British physicist Arthur Eddington proved the second phenomenon of the general theory of relativity, i.e. the bending of light due to gravity, experimentally. In which he found out that the stars behind the sun are not visible where they actually are. They are a few degrees away from it. That is, the light of those stars is bending due to the gravity of the sun. And this was the point when the whole world considered Einstein's general theory of relativity to be correct

and considered his theory as a landmark theory. And this unique explanation of gravity established Einstein as a genius. Now if you have listened to this story carefully, then you must have understood that we did not say anywhere that Newton's theory of gravity was completely wrong. In fact, Einstein himself did not believe this. The point was that Newton's theory of gravity was completely wrong. In his theory, there were many missing links that Einstein identified and solved with his new and up

dated theory and increased his area of application. And in my opinion, this makes Einstein different from other scientists. He asked a simple question on these fundamental theories, recognized the gaps in them and then tried to fill those gaps with logical explanations. And if you are pursuing science or physics, then you should also try this approach. You can work to further advance the legacy of scientists like Newton and Einstein. Because like Newton's theory, there are many loopholes in Eins

tein's theory. Einstein's theory also has an area of application and there are some observations outside of it that he cannot predict correctly. For example, what happened before the Big Bang? Why did the Big Bang happen after all? And what happens inside the black hole? Einstein's theory is not able to predict all these observations. Now in this case, if any of you can fill this gap, then you will become an important part of this legacy. But it is not that easy to solve this problem. Because ho

w does gravity work at the quantum level? We have not yet been able to get a clear explanation for this. Now what is the problem that gravity is creating at the quantum level? Why is it almost impossible to mix relativity and quantum mechanics? If you have learned something new from this video, then please hit the like button and subscribe to the channel for such interesting videos. And yes, friends, before leaving, if you want to keep your hair healthy, and you want to protect yourself from iss

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