Chapter 2996 The ghost in the distance (1)

There are many types of glasses, but generally speaking, young people use more myopia glasses, which are concave lenses, while older people use more presbyopic glasses, which use convex lenses.

In Gloucester's time, people had already discovered that convex lenses could be used to magnify things. At that age, the glasses he used were also reading glasses. It was not until 1289 that the earliest myopia glasses appeared in Florence. At that time, he

Has been dead for 30 years.

This old monk had no children or relatives to inherit his "property". Although he left mainly documents, these manuscripts were "divided up", some were taken away by the university, some by the church, and some were taken away by the church.

It fell into the hands of a private collector.

Among them was a baron named Roger Bacon. He studied art at Oxford University in 1247 and later transferred to cosmic science. He mentioned the polarization of light in a paper he published. It is generally believed that he quoted Gloucester's work.

Information. If light is a substance, no matter how "simple" its composition is, as the optical path lengthens, it will also multiply.

Newton was a supporter of the light particle theory. He believed that light is a flow of particles, starting from the light source and following the laws of mechanics in a uniform medium to perform uniform linear motion. Newton's law of gravity states that the speed of gravity propagation is infinite, regardless of the distance between objects.

No matter how far away it is, or the type of medium in between, its gravity can be felt immediately. The special theory of relativity believes that the fastest information transmission in the universe is the speed of light...

Simply put, Newton defines time as absolute, special relativity believes that space-time is variable and flat, general relativity believes that space-time is curved, and what causes the contradiction between classical physics and relativity is the "medium". The universe we cannot see

There are many particles in the universe, and they fill the universe just like invisible light. To human eyes, the sky appears black, but if people can see the radiation in the microwave band, they will find that the sky in all directions is shining evenly.

If light is a wave, then it must need a medium to transmit like sound waves and water waves. This substance was once called "ether", but by Einstein's advent of quantum mechanics, the theory of absolute time was also abandoned.

Not only did Grindelwald give a speech in Paris in 1929, which almost destroyed Paris, Hubble also discovered the expansion of the universe... Anyway, when Pomona found Albus, he was reading this kind of book.

Children like to watch Superman save the "multiverse crisis". What is the multiverse?

The "parallel world" in most novels means that in this world A and B are married, but in another world the two people are not married.

In the multiverse hypothesized by Feynman, a and b will get married no matter what, but a and b may get married three years after graduation, without any twists and turns, and everything goes smoothly. In another hypothesis, the two get married.

They worked in different places for a period of time, and one of them almost fell in love with someone else. They went through many setbacks and tests before they had a happy ending. They got married three years after graduation. If you imagine this young couple

Into particles, particles have traveled all the way in the light cone, that is, there are countless possibilities, and this is also a multiverse. Straight lines are of course the fastest, but they have to go round and round.

There is no time difference or medium in theory for quantum entanglement, but it is difficult to verify due to limitations in experimental accuracy and capabilities, so it can only remain theoretical. In theory, Einstein does not support the existence of quantum entanglement.

Many things are beyond the scope of human perception, and if you deny their existence without seeing them and understand them in a human way, then the earth will still be flat because gravity is also invisible.

"You seem to be in a lot of trouble," Dumbledore said suddenly.

Pomona looked at him and found that he was still lowering his head and reading information with his half-moon glasses.

"Severus hoped that I would not intervene in the disputes between students, but there were students watching at the time." Pomona said depressedly.

"So what's bothering you?" Dumbledore asked.

It was this that made her anxious, and she couldn't describe it.

"I have a friend who told me a story." Dumbledore flipped a page of the book lightly.

"You want to tell me a bedtime story?" Pomona said sarcastically.

"Grandpa Whitebeard" laughed, and then said, "A long time ago, there was a two-headed bird living under the snow-capped mountains. One head was named Garuda, and the other was named Upa Garuda. This bird has a habit.

, when one end is sleeping, the other end must be awake and looking around. One day the two-headed bird was resting on a fruit tree, and Upa Garuda fell asleep in the gentle breeze, and a fruit hit Garuda's head.

The aroma of the wild fruit made Garuda salivate. He thought, "I ate this fruit myself and put it in my stomach, and Upa Garuda also gained strength." So he ate the fruit, and Upa Garuda became stronger.

After Lucha woke up, he burped and asked in confusion, "Where did I get such delicious food? It makes me full of energy." Then Upa Garuda said angrily, "I encountered good things, but Garuda was alone."

Enjoy it, I will not do that in the future.' After some time, they encountered a fruit tree. The fruit of this tree was poisonous.

The king ate it, and when Garuda woke up, he felt uncomfortable all over, burped involuntarily, and noticed the poisonous gas, but it was too late to wake up his companions, and the two birds died of hatred."

After a moment Dumbledore looked up at Pomona "Do you know what the problem is?"

"Upagaruda didn't eat good food, and he was holding a grudge," said Pomona.

"There is no precise answer to this question. Just like rune snakes, they always quarrel. If they don't learn how to choke, won't there be fights?" Dumbledore asked.

Pomona didn't know how to answer.

"Knowing how to weigh the importance and not acting on impulse is a sign of mental maturity. If I were you, professor, I wouldn't worry about this. You made a judgment based on your reason and wisdom, so why bother?"

"He thinks I'm partial," Pomona said.

Dumbledore didn't want to continue talking, but he was still patient.

"Our heart is like a paintbrush that can paint all kinds of things in the world. Whatever materials you give it, it can paint what kind of painting it is. You should think about how to resolve disputes and misunderstandings instead of being influenced by others."

Pomona felt that she was still confused, but Dumbledore wanted to read quietly and would not give her any other answer.

So she bowed and left the principal's office.

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"Do you think Albus has ever met Einstein?"

Pomona asked as she washed the dishes.

Severus, who was wiping the dishes with a rag, was stunned.

"What makes you think that?" Severus asked.

"Because he is 'old'." Pomona said, "They are people of the same era."

"One of them lives in Germany and the other lives in England." He put a cleaned bowl back on the dish rack.

"But Albus has been to Berlin," said Pomona.

"Einstein was no longer in Germany by then," Severus said.

"You just don't think they've seen it anyway, right?" Pomona asked.

"Yes." He deliberately prolonged his voice and made a hissing sound.

"Can't they communicate?" Pomona asked.

This time he didn't answer.

Pomona handed him the clean bowl.

"How about we go to the Muggle world tomorrow? I haven't watched a movie in a long time."

"I'll go if I win the chess game," he said coldly.

Pomona pouted, "You obviously know I can't beat you."

"Then don't think about it." He said with a smile in a good mood.

"Why can't you just make me happy for once?" Pomona complained and left the kitchen.

Sometimes she really wishes she had a "normal" boyfriend, not to mention that the movie she is going to watch is a science fiction movie that boys also like to watch, not a romantic literary movie.

"What movie?" Severus asked in the kitchen.

"The Matrix!" Pomona said angrily, crumpled up the movie poster and threw it into the trash can.

By the way, quantum entanglement was confirmed
Chapter completed!