Chapter 1083 Son of Stardust

When the sun dies, the hydrogen in its core will be exhausted and everything will begin to cool.

The internal thermal pressure cannot support its internal structure, gravity dominates, and its core continues to collapse.

The collapse will increase the pressure in the sun's core, causing the gas to expand in an instant and increase in volume until it becomes a red giant.

Its radius will extend to the earth, swallowing up this beautiful planet. Compared with the entire universe, the sun is insignificant. Even if you stand outside the Milky Way and observe, you may not be able to find the sun at all, because it is too small, just a medium-sized planet.

Mass stars.

Iron is not a rare element on the earth and is even found in everyone's body. It is precisely because of iron that human blood has a rusty smell.

Once a red giant star is formed, when the outer region expands rapidly, the helium core shrinks inward due to the reaction force, and the compressed material continues to heat up. However, a star with the mass of the sun can only change from hydrogen to helium when its life ends.

After further fusion to carbon, the final carbon nucleus will not continue to fuse.

When more massive stars burn out their hydrogen and helium, they can continue to burn carbon nuclei, producing heavier elements such as sodium and magnesium, all the way up to iron.

Elements with atomic numbers greater than iron can undergo nuclear fission reactions under certain conditions, eventually producing iron. Elements with atomic numbers smaller than iron can undergo nuclear fusion reactions under certain conditions, eventually producing iron.

The iron element is just in the critical state of fusion and fission. It can neither undergo fusion nor fission reactions, so in the end only the iron element remains.

The iron in the earth and people may have come from a large star that was at least 8 to 29 times larger than the sun billions of years ago.

The iron core at the center of a red giant star has a large number of electrons. When the star's life is about to end, that is, the nuclear fusion reaction weakens, gravity squeezes the iron core, and the electrons are squeezed into the nucleus.

Due to electron capture, the number of electrons decreases, pressure and gravity break the balance again, and gravity collapse occurs. This process takes about 0.1 seconds, and then the supernova explodes.

The extreme high temperature and high pressure state of the supernova explosion will synthesize elements heavier than iron, such as gold, but in this case a white dwarf will not be formed.

White dwarfs are formed at the end of stars that are about as massive as the sun. If the star is more than 30 times the mass of the sun, then the star will form a black hole at the end of its evolution. No matter can escape its gravity, not even light.

After the supernova explosion, a neutron star will be formed. The debris produced by the previous generation of stars will be captured by the second generation of stars. Some elements will be pulled into the "furnace", and some elements will form planets, and then a galaxy similar to the solar system will be born.

These are the findings of modern Muggle scholars. In the fifteenth and sixteenth centuries, humans did not have the Hubble Telescope. The reason why Mercury is called Mercury is because it moves very fast, so it was dubbed the "Messenger"

The name.

Mercury is blue when viewed from the earth, reminding people of the blue sea. However, the planet closest to the sun actually does not have a drop of water. Just like mercury, although it can flow like a liquid, it is a metal. Regardless of

Whether it is mercury or mercury, flow and speed are their important characteristics.

Severus was an experimentalist, as Sirius said, he liked to tinker with his chemical equipment in the cellar.

Pomona is a speculator. Ancient alchemical manuscripts contain a lot of encrypted content, and there are many complex metaphors and symbols. Unless you have the key to open it, you can't see the connection between the context and the context.

Speculating on the meaning of these manuscripts was part of the practice; the same swan sometimes represented arsenic, sometimes Mercury, and almost all alchemists used obscure myths and metaphors to describe their experiments.

Pomona believed that Tom had found the right key by chance. Severus did not believe that it was such a coincidence, so he would use the slow but sure method of experimenting one by one.

Gold, silver, copper, iron, tin, lead, and mercury are the seven sacred metals of alchemy, but they actually used many more metals than these seven metals. If Mongenius Hagrid had used such a simple encryption method, the treasure would have been

It was taken away.

The key is that the mercury content in gold coins cannot exceed a quarter of an ounce. If seven sacred metals are really used, then the mercury in one gold coin would be excessive.

Leo represents gold, which seems easy to guess, but Virgo cannot use mercury. A good harvest of wheat requires fertilizer. Potassium seems to be a possibility. Plants also need trace elements.

Pomona looked at the "cheating" note. In the first year, Slytherin worked so hard to win the House Cup. At the banquet at the end of the semester, the old lion added more than 400 points in one breath, and the trophy he was about to get changed hands just like that.

.

Even the Weasley family is biased, and Ron definitely doesn't receive as much attention as Passion.

Severus had never been favored by his elders, so he didn't know this "little trick".

He is very good, but he is not favored by Albus. Albus took him out of the Wizengamot trial with just one word, which shows how powerful and prestige the old fool has.

But in school, he just had to confront Albus. Where was his Slytherin cunningness?

There were many books on alchemy in the Black family's library, and the more she read, the more upset she became.

So she put down the book and stared at the other "bookworm". He was so attentive that she took out her pocket watch and looked at it. It was already past eleven o'clock.

"It's rest time, let's go back to the room and sleep."

"You haven't had enough sleep after two months?" Severus said without raising his head.

"I'm worried about your health."

"Wait until I finish reading this."

Pomona was angry. He wanted to steal these books last time at the Black Mansion. If he continued like this, he would become "Frankenstein".

"Let's go!" She pulled his sleeve, but the old bat remained unmoved.

"What did you see that was so interesting?" She also watched curiously.

"Remember Fawkes? It swallowed a killing curse, but it did not die. Instead, it was reborn. The phoenix is ​​like the lighthouse jellyfish. As long as it is not eaten, it can live forever." Severus pointed to the phoenix in the book and said.

"Phoenixes don't have as many natural enemies as jellyfish. I've always wondered why the number of phoenixes is so rare?"

"You want to raise one?"

Severus smiled strangely, "How could you have such an idea?"

"It would be cool to have a phoenix pet."

Severus shook his head, "The appearance of this kind of animal does not conform to the laws of nature. If what is written in the book is true, the phoenix is ​​the same as the basilisk, a product of alchemy."

"I know there is a phoenix in Nick Flamel's book, but I don't think it looks like a life created by alchemy."

"This is why I have to finish reading before leaving. Can you give me some peace of mind?"

"I heard that when the Dumbledores need a Phoenix, it always appears," Pomona said.

"How did you know?"

"Did you have a picnic with the old coot?"

He frowned, "Why should I have a picnic with him?"

"You only have business to talk about, right, and Harry?" Pomona stared at him and shook her head.

"You have a good personal relationship with him. Did he tell you how this phoenix came from?"

"I didn't ask!" she said confidently.

"Awesome, what are you talking about on the picnic? Is this candy really sweet?" he said with a fake smile.

"We talk about students and their growth," Pomona said. "Whoever gets married, whose children will go to school again."

"What's the point of chatting like this?"

"Of course, because we are all children of the stars." Pomona stared into his eyes and said, "We are related by blood to the stars in the sky."

Severus looked at her and shook his head, "You're crazy."

But he still threw the broken book away, then he stood up, put his arm around her shoulders, and left the secret room.
Chapter completed!