The middle-aged man raised his head and looked at the decoration of the tavern, although it was very delicate and had been maintained, it could still be seen that it had gone through the baptism of time.

There are some scratches on the floor, and many tables and chairs have a noticeable coating that has a very nice sheen.

He didn't know about antiques, but if a knowledgeable person came to look at these wooden tables and chairs, they were worth a lot of money.

"You look like you've been open for a long time." The middle-aged man said, "But why doesn't it look like there's anyone?" ”

"It was closed for a while a while ago. It's only open now, and there's no publicity. Char said.

The middle-aged man nodded, he actually took a fancy to this shop, no one came in, and he wanted to find a quiet place to sit.

He looked around and wanted to sit down in a quiet and unoccupied corner, but Char spoke.

"You can sit down here."

The middle-aged man slowly raised his head to look at the bar, while Char pointed to the position in front of the bar.

"The rest of the place has been brushed with a layer of tung oil, and it hasn't dried yet."

The middle-aged man looked around and saw that there was indeed some of the tables and chairs that did not look like a natural sheen.

He nodded, walked over to the bar and sat down, pulling out a piece of paper and fumbling for something on his body.

"Are you looking for a pen?"

The middle-aged man slowly raised his head, and saw that the owner of the tavern handed him a fountain pen.

"Thank you."

He took the pen and then buried himself in writing the formula on the paper, while mentally calculating a lot of things, he didn't communicate with Char again, he didn't order, as if he was immersed in his own world.

And Char didn't bother him, just silently concocted the drink, and deliberately turned his voice to the lowest when making it.

I don't know how long it took, the middle-aged man slowly exhaled a breath of turbidity, and reinserted the pen into the pen sleeve, and the paper was full of dense formulas, even the back of the paper.

He looked up and saw the owner behind the bar pushing a drink.

"Give it a try, the latest new product, free tasting, after mental exercise, it will be better to add some sugar."

The middle-aged man looked up at the clock hanging on the wall behind the boss, half an hour had passed since he had just entered.

Only then did he remember that he hadn't ordered, this was a tavern, and he sat for half an hour instead of buying alcohol when he came in, which made him feel a little embarrassed.

He said apologetically, "I'm sorry, I was just too immersed in my own world. ”

"It's okay, there's no one right now anyway, you can sit until the store closes." Char laughed.

After a pause, Char looked at the list and asked curiously, "Are you a scientist?" ”

"Theoretical physicist." The middle-aged man said.

Char nodded, "My name is Char, can I ask your name?" ”

"Albert Einstein." Albert Einstein said.

"Albert Einstein." Char frowned and thought for a moment, "It's like. Where have you seen this name. ”

After a pause, his eyes lit up, "You're the author of that special theory of relativity, right?" ”

Einstein had already published the special theory of relativity during this period, and even the general theory of relativity was almost completed this year, if nothing else, next year should be the time for him to publish the general theory of relativity.

Einstein looked at Char in some surprise.

"I also have a scientist friend." Char smiled, "So I also read some scientific journals, after all, science and technology are the primary productive forces." ”

"Going back a few decades, who would have thought that the ship would still be able to go to land."

"It's not everyone who is Tesla."

Albert Einstein laughed.

"I'm studying theoretical physics, and it's probably going to be a long, long time before I can really change the world."

"High-rise buildings don't appear in an instant, do they?" Char said.

"You're wise." Einstein nodded.

"I don't really understand your theory of relativity." Char asked curiously, "How could time be different?" ”

"It's true that there are a lot of people who can't understand it right now." Albert Einstein nodded, "Because the vast majority of people's minds bind themselves to a very small area with their inherent cognitions.

If you want to understand the theory of relativity, you need to change a concept. ”

Albert Einstein looked at him, "Time, in fact, does not exist, but people cannot explain the decay of things and the aging of people, so they are named time." ”

"I have always believed that time, matter, and space cannot be explained by abstract concepts.

Everything in this world, everything we look at, including ourselves, is made up of countless particles.

The movement of these particles leads to the decay of objects and the aging of people, and all phenomena defined by human beings as "time" are produced by the movement of particles.

And since it is "motion", there is naturally speed and slowness, when the particles in your body move fast, all the particles around you will slow down relative to you.

So in your perspective, the time passes around you slowly

Of course, if you want to tell the difference with the naked eye, you may need to use the speed of light. ”

Char nodded as if he didn't understand, "Sounds complicated. ”

Albert Einstein smiled, "It's like a high-speed steam train, when you stand in the front of the car, sit on the hot coal, you feel like you're living for years; But when you're in bed with a beautiful woman, you feel like time is ticking. ”

Char raised her eyebrows, "Suddenly I understood." ”

"And the more beautiful and in shape a woman is, the faster this time will be."

"Hahaha!!" Albert Einstein let out a hearty laugh, "You have understood the essence of the theory of relativity." ”

At this time, Alicia walked out of the corridor leading to the castle, but changed her clothes, which were more sophisticated, simple and soft, without lace or other cumbersome details, and wore an apron from the shop.

Her long hair is simply tied into a ponytail, giving her a youthful and energetic look.

Rao is Einstein who has been nostalgic for flowers all year round, and the moment he saw Alicia, his eyes couldn't help but flash with a moment of amazement.

"She's my wife, Alicia." Char said.

Einstein nodded, and he quipped, "It looks like your time is passing very quickly." ”

Char nodded undeniably, "More than a hundred years have passed before you know it." ”

Albert Einstein smiled, he found the tavern owner funny, funny, and humble in speech.

Even for knowledge that violates common sense, I did not rush to deny it, but tried to accept it.

This is a quality that many people do not have, and on the day his special theory of relativity was released, many of his peers denounced him as a liar.

Until now, there are still a group of people who do not believe in the existence of the theory of relativity.

He picked up the wine on one side and took a sip, saying that it was wine, but in fact, it was more inclined to drinks, sweet and refreshing.

He'd never had a drink like it before, but he loved it, and as he said, he felt a lot better after a little sugar.

"You're bound to have a lot of guests here in the future." Albert Einstein said.

"I'm sorry for your good words." Char laughed.

"Is there wine here?" Albert Einstein asked.

"Of course, you're asking the right person, my wine here should be the best in the world." Char said confidently.

Einstein smiled and disagreed, and all the tavern owners said that their own wine was the best.

Char turned around and walked to the side of the wine cabinet, took a bottle of wine from the top level, and opened the cork with a wine driver.

With the sound of "Peng", the rich aroma of wine slowly permeated the tavern.

Einstein took a deep breath and inhaled the aroma into his nose, his eyes narrowed, and his face showed an intoxicated look.

Then, he opened his eyes and said in disbelief, "Isn't this really made of some kind of industrial synthesis?" ”

"Of course not, where is this technology now." Char laughed.

Albert Einstein shrugged his shoulders, "Who knows, the speed of scientific progress is too fast for me to react." ”

Char picked up four goblets from under the cabinet and placed them on the table, then carried the bottle of wine and poured some for three of them.

And one of them was pushed by him to Einstein.

"How are four cups?" Einstein asked curiously, there are only three people here.

"I'll have a friend come over later." Char said.

Einstein nodded, then eagerly picked up the goblet in front of him, shook it slightly, and took a sip.

He was interested in wine at a very young age and went to many places to drink wine as an adult.

After he became famous with the publication of the special theory of relativity, he also attended many high-society banquets and drank the wines collected by the big capitalists and aristocrats.

But none of these wines are as good as those in this tavern, with an intoxicating aftertaste other than a rich but not pungent fruity aroma.

Especially after drinking this wine, Einstein had a feeling of great physical and mental comfort, and even a lot of new inspiration in his mind.

He came back to his senses, looked at the wine in his glass, and sighed.

"You're right, it's really the best wine in the world."

Char smiled, and he asked curiously, "I think you can't see these moving particles, but how did you discover this phenomenon?" ”

"Mathematics."

"Math?"

A mysterious smile appeared on Einstein's face, "Don't underestimate mathematics, although it is very contrary to common sense, the results it deduces have great correctness." The vast majority of physicists today are also using mathematics to derive various physical phenomena. ”

Indeed, as he claimed, Einstein's general theory of relativity.

General relativity is a theory that describes the gravitational interaction between matter.

It argues that the greater the mass (or gravitational pull) of an object, the slower time will be, that is, the gravitational field of an object will distort space-time.

This theory corrected the understanding of gravity in Newtonian mechanics and put forward the idea that gravity is the result of the curvature of space-time.

But in this era when humanity has not yet stepped out of the stars, it is almost impossible to verify this theory.

However, in the future, people have confirmed the correctness of this theory from various aspects through the observation of stars with large gravitational fields in the universe and the flashing of some special substances.

In other words, Einstein arrived at this theory in a purely mathematical way, without relying on any tools, decades in advance in an approximate prediction.

"To be honest, after I deduced the special versus general relativity theory, an idea came to my mind.

If this idea succeeds, my name in history may be even louder than Tesla! ”

"Can you tell me about it?" Char said.

"Of course." Albert Einstein laughed, "After the general theory of relativity was written, an idea popped into my head.

Since gravity can be mathematically introduced, a "universal formula" can be introduced.

What about electromagnetics? And even other physical phenomena?

Is it also possible to link them directly with a unified "equation of the world"?

Use an equation and explain the whole world! ”

Einstein's eyes sparkled with excitement, and he was looking forward to that future.

Char nodded, "Sounds very stakesome. ”

He was from another time and space, so he was very clear about Einstein's research.

This "equation of the world" also has a name called "Unified Field Theory"

It refers to the unification of gravitational and electromagnetic forces.

In later generations, on the basis of the unified field theory, there was an additional theory of great unification, and there was more weak force and strong force.

There are four fundamental forces in the world, weak force, strong force, electromagnetic force and gravitational force.

Unification is the use of a theory to unify them and explain the universe with an equation.

It's not a mystical thing, it's like the periodic table that allows humans to understand the world better.

It is the most important foundation of many technologies.

Of course, the difficulty of unifying the field theory is much more difficult than that of the periodic table.

Einstein's goal in establishing a unified field theory was to unify his theory of gravity, the general theory of relativity, with Maxwell's theory of electromagnetism.

If successful, unified field theory will be the pinnacle of Einstein's work.

However, Einstein's progress was not smooth, and due to the limitations of computer technology, none of the results of any experiment could prove the relationship between gravity and the magnetic field of electric currents.

Although Riemann, who established the theory of curved space in any dimension, was convinced that both gravitational and electromagnetic forces could prove their unity by simple Riemannian geometric derivations.

But alas, apart from this, there was nothing in Einstein's mind that could prove his idea.

At this time, quantum theory was booming, a large number of excellent physicists devoted themselves to it, and few people followed Einstein to study the unified field theory.

Gradually, well-intentioned reminders or sharp criticisms of Einstein and the unified field theory followed.

Among the critics was Einstein's friend and colleague Wolfgang Pauli, who famously uttered a quote.

"God doesn't want people to put things together," he said. ”

Pauli uses this sentence to imply that the unified field theory cannot succeed.

The establishment of a unified field theory is not a great feat that can be accomplished by one person.

After Einstein's death, dozens of the world's top scientists worked together and it took decades to establish a unified model of the three forces. They are strong, weak, and electromagnetic.

And even so, gravity has never been unified with these three forces, and they have no clue.

The difference between gravity and the other three forces is that gravity is a macroscopic force that is the force that exists in the stars, whereas the other three forces are microscopic forces and are interatomic forces.

The microcosm may still be observable, but stars are much more difficult to observe.

Albert Einstein alone wanted to unify the most difficult gravitational force with one of them.

In this era of limited technology, unifying the two is almost a miracle that cannot be accomplished by human beings.

If he could do it alone, it would not be an exaggeration to call Einstein the true god of physics.

Einstein spent his later years working at the Institute for Advanced Study in Princeton, where he spent half his life working on the unified field theory without success and without followers.

The physicist, who should have had more great creations, died alone in 1955...... (End of chapter)