I really don't want to lie down and win

Page 1297

But...he is the one with the most pressure!

smile,

It's just a means of covering up.

Seeing the curiosity on everyone's faces, Xu Mang coughed lightly, and said calmly: "Not long ago...a friend of mine named Sun Chuanxiao accidentally discovered some secrets about white dwarfs, and based on this, he came to a conclusion , Earth-like planets may be common in the universe."

"???"

"???"

"???"

Xu Mang's words caused an uproar in the audience. The so-called terrestrial planets are planets similar to Earth, planets with silicate rock as the main component.

Terrestrial planets roughly have a metallic core of mostly iron surrounded by a silicate mantle.They generally have canyons, craters, mountains and volcanoes on their surfaces.

However, it is still very difficult to find terrestrial planets in the universe. There are only a few exoplanets known to human beings. Due to the limitations of technology, most of them come from observations and are calculated based on their orbits with stars. .

"Professor Xu!"

"I don't know if this friend of yours is a professional astrophysicist. I suspect...he lacks basic common sense." A young man raised his hand and said, "NASA, the American space agency, only updated There are more than [-] exoplanets, of which only a dozen are terrestrial planets."

"If terrestrial planets are very common in the universe, it should be published a lot." The young man said.

What this guy said was what other people wanted to ask, and everyone stared at Xu Mang, their eyes shining with longing.

in fact,

All of this was what Xu Mang expected.

Even if he speaks gaudyly, it is impossible to convince some people, and even a small rubbing of people is a dead brain, and they will not believe it even if they are beaten to death.

evidence!

Only evidence can conquer these people.

Xu Mang clicked on a two-dimensional data model, on which was a comparison map of the elements of the five white dwarfs and solar system objects.

"As you can see."

"A comparison chart of elements between white dwarfs and solar system objects." Xu Mang stood in front of the podium, and said to the five or six hundred people in front of him: "If you only observe a white dwarf, you may only see hydrogen and helium, but in these data , can discover the actual substance.”

"Silicon, magnesium, carbon, and oxygen, etc. These substances are accumulated on the white dwarf from the stars orbiting the white dwarf." Xu Mang paused, and then said: "When iron is oxidized, it shares electrons with oxygen, form a chemical bond between them."

"We can see this oxidation when the metal turns into rust. Oxygen steals electrons from iron, producing iron oxide instead of iron metal." Xu Mang said seriously: "My team and I have measured the impact of white dwarf stars. amount of oxidized iron in rocks."

"result..."

"It was found that these white dwarfs are chemically similar to rocks on Earth, Mars and other places in the solar system, and contain surprisingly high levels of iron oxide!" Xu Mang said.

words fell,

Xu Mang provided another data model diagram.

This...

This is absolutely big news!

Everyone present was shocked. Perhaps in the eyes of outsiders, Xu Mang's discovery was quite ordinary. It was confirmed that terrestrial planets are very common in the universe. But to astronomers and astrophysicists, this was definitely a shock. of.

but...

These few data model diagrams alone seem to be unconvincing.

Then,

Xu Mang threw out a concept of oxygen fugacity.

Oxygen fugacity is familiar to most people present. Oxygen fugacity is the effective oxygen partial pressure. Oxygen partial pressure refers to the partial pressure of oxygen under the total pressure of the mixed gas, which can be directly measured.

Many people present felt a little confused. Is this related to oxygen fugacity?

"Perhaps...you are actually nothing...but the large amount of iron combined with oxygen in the silicate of the chondrite shows that the oxygen fugacity was high in the earliest stage of the formation of the rocks in the solar system."

"The increase in oxygen fugacity during the formation of rock masses is due to cosmic dust rich in water or rocks." Xu Mang said: "Then we studied whether the process that leads to the oxidation of rocks in the solar system is the same as that in other planetary systems."

"And the objects are five white dwarfs."

"result..."

As soon as Xu Mang finished speaking, he provided a third data map, which clearly showed that there were striking similarities between the two.

after that,

Xu Mang announced an important formula, the conversion formula of oxygen fugacity. This formula is not complicated, and it is even so simple that it is outrageous.

However... the reaction of everyone present was a little excited.

This,

Absolutely a revolutionary discovery!

The mystery is becoming clear step by step, and the truth is getting closer and closer!

"Old boy..."

"Can you tell me where Xu Mang's potential is?" Silke looked at the stage explaining how to use the oxygen fugacity conversion formula, and hurriedly turned to Professor Smith beside him.

"do not know."

"Maybe he is the only one who can't think of it, and he can't do it without him." Professor Smith smiled bitterly: "Who do you think this year's Nobel Prize will be given to?"

"Does this still require guesswork?"

"Apart from him, who else can win the Nobel Prize in Physics?" Professor Silk said seriously: "I hope the Nobel Prize Committee can be fair and abandon the inherent paranoia. If... this time the Nobel Prize Xu Mang didn't get the physics award, so I won't pay attention to them in my life."

Professor Smith nodded, he also had this idea.

at the same time,

Professor Danny of NASA was ashamed. When he slowly understood Xu Mang's discovery, he realized how ridiculous the joint research topic of NASA, JXAX and Princeton University was.

First, use the gravitational microlens to observe the celestial body, and then calculate the oxygen fugacity value, basically you can figure out whether this planet is a habitable planet. His method directly refreshes the cognitive view.

So convenient and efficient, how did he think of it?

"Professor Danny..."