future library.

Chapter 172 The Heavenly Measuring Ruler (2)

In astronomy, the discovery of variable stars is extremely valuable, and it is not an exaggeration to say that it opened a new chapter in astronomy.

The so-called variable stars are actually stars whose brightness changes over time. They are very common in the universe, and no one has noticed how they change for a long time.

It was not until the beginning of the 20th century that a female astronomer, Henri Yetta Lewitt, collected information on various stars for the purpose of making a detailed catalogue, that she noticed their special way of changing—the longer the time interval between brightness and darkness of variable stars, the The brighter the variable star.

Sounds like a mundane discovery, but it turns out that the secret she uncovered was far more valuable than the stellar material she ended up producing—mostly, people doing repetitive, heavy work of no value, often in At one point, the work they accomplished was greater than a lifetime.

The value of a variable star is that it allows people to calculate how far we are from the planet at this moment just by observing the brightness of a variable star for a century-some people will say, don’t we know its actual brightness?Actually don't know.

Imagine that there is a car approaching you at night, and you will find that its lights are getting brighter gradually - in fact, the brightness of its lights has not changed, but the car is getting closer and closer to you.

In astronomy, people call the brightness of the stars seen on the earth the apparent magnitude, and the true brightness of the stars the absolute magnitude. They are then connected with a simple formula, which is another From the linear equation of one variable, middle school students can directly obtain the distance.

Although it is so simple, how to obtain the absolute magnitude has puzzled astronomers for hundreds of years.At that time, when facing the stars in the Milky Way, they used the triangular parallax ranging method, but for extragalactic galaxies, because the distance was too far, everyone was helpless for almost a hundred years, until Ms. Leavitt discovered the law of variable stars—by the way, This American female astronomer is a deaf-mute. When primary school students write essays about physical disabilities and strong ambitions, they get higher scores when using her name than using Zhang Haidi.

……

Looking at the star map, Cheng Jinzhou faced the same problems as ordinary astronomers.

What he sees is the apparent magnitude, and only an absolute magnitude is missing to obtain an accurate distance.

Putting it in the law of universal gravitation and adding a rough mass, he can almost calculate the magnitude of gravity in astronomical units.

For star warlocks, this is an absolutely impossible task.

Such a useful tool as the measuring ruler was not discovered until the beginning of the 20th century. In other words, the astrologers in the 17th century did not even think about it.

In Europe in the 17th century, the gentlemen at that time did not even have reflecting telescopes, and learning astronomy was as hard as learning to fly, and the treatment of astrologists was much better.At least they have Star Array to use.

Although physics and astronomy are very similar, and astronomy electives are the focus of competition among children, Cheng Jinzhou, a doctor of theoretical physics, has never been a studious child. While comparing the brightness of stars, he Asked: "What is the relationship between multiples of magnitude? I forgot, oh, I also need some optical instruments to measure the specific brightness of celestial objects."

"The relationship between each magnitude is 2.512." Customer service 010 finished, "Do you know why I tell you the answer directly instead of asking you to search in countless books?"

"You said you were training my conditioned reflex?" Cheng Jinzhou didn't mind being compared to any animal.

"On the one hand." Customer service 010 said coldly: "We have talked about my problem before, so I want to say a few more words now. I think you know that my role is greater than the books of the Star Alliance. , so I hope you can seriously consider my request."

Cheng Jinzhou had some expectations and withdrew his attention from the star map and said: "In the short term, your existence is indeed more direct than the many, many books that may be useful or useless."

"In the short term" five words, the pronunciation was heavily suppressed by him.

Customer Service 010 has new changes every day, especially the change in attitude. It is almost like changing from a state-owned waiter to a mall waiter who is on her period. Now it seems as if her period is about to end.

Although it was a bit inhumane, Cheng Jinzhou still hoped to squeeze it for a longer period of time, so as to make up for his lost energy and physical strength.

"I can directly tell you the brightness on the star map." Customer service 010 did not explain further.

"That's the best." Cheng Jinzhou didn't feel ashamed at all.

Customer service 010 also laughed, and said kindly: "My patience is limited, I hope you can make a quick decision."

Cheng Jinzhou chuckled and said nothing.

Buy about 200 more books, and he will be able to reach Covenant Level 4, but it is really difficult for him to decide when he will reach it.

Seeing what happened to customer service 010, or the Star Alliance library, he could only bear it passively—whether it was good or bad, Cheng Jinzhou naturally had the idea of ​​maintaining the status quo.

For him, the status quo is already a very good situation.

Throughout the night, Cheng Jinzhou was constantly counting stars, changing stars, and connecting star lines.

The gentlemen who came to the banquet went to their homes, and Bishop Kant seemed not to care about his actual purpose at all.

Even at the other end of the inner hall, Cheng Jinzhou could still hear the howling song, which was extremely inspiring.

For such an off-line bishop, Cheng Jinzhou would rather be fully prepared.

……

The warm spring light shines on the earth, and the biting cold wind blows Li Zhong's heart.

Under Bishop Kant's strong request—in essence, the only request he repeated—all tailors in the capital were gathered in the church, including His Majesty's imperial tailor.

All kinds of clothing materials, even materials that are not used for clothing, are piled up in the hall of the temple, from silk silk to cotton linen, from felt blankets to cowhide and bear skins. I searched all the shops in the capital. Girls who are going to get married in the next half month must be very lucky if they want to choose good fabrics.

Cheng Jinzhou, who had not slept for 24 hours, had difficulty falling asleep amidst the bustling noise. Coupled with his uncontrollable curiosity, he couldn't help but take a walk to the north of the inner hall.

However, he soon regretted the decision.

In the side hall separated by several Roman columns, Kant leaned on his upper body, waving his thin arms and commanding a tailor team of up to a hundred people.

I saw him wearing a pair of white-bottomed blue flowers with red Tang suit shorts, and his big black leather shoes were polished again. The huge toe caps covered his ankles. The most "intoxicating" thing was a mixed-color cloth belt, entangled Like a torn rag, one-third of it is still wrapped around the rib-like chest and waist.

Cheng Jinzhou's first thought was: What the hell kind of animal is this?
Bishop Kant is always uplifting and happy, always full of energy and inspiring language.He is like an African-American monkey candidate who is running for the president of the United States, circling in the only open space in the hall that is not covered with cloth, yelling: "Hurry up, hurry up, hurry up, you are doing it for the great Kant." Serving the bishop, serving him, is serving the Holy Church, serving the Holy Church, is serving the Star God, the Star God will thank you, and the Star God will reward you. Think about it, you are doing the most beautiful work in your life Kant's clothes, Kant's design will make the whole world tremble, will make the world ecstasy..."

While enduring the carpet bombing from the bishop, Li Zhong lowered his head to his hind legs until he reached the entrance of the hall, and then let out a soft "hoo".

"It's hard work." Cheng Jinzhou suddenly said, startling the priest.

Li Zhong trembled with paralysis, turned around and said, "Mr. Cheng, why are you here? Did you sleep well last night?"

"I didn't sleep much. You said he came from the Xingzhou Holy Church. The Xingzhou Holy Church is like the status of the Star Warlock Association in the association?"

"Yes." Li Zhong sighed and said, "Xinzhou Holy Church is the core and the heart of the Holy Cult. Anyone who wants to become a priest must have studied in the Xingzhou Holy Church. Back then I was It took two years to reach Xingzhou, and it took another four years to travel from Xingzhou to Daxia."

"Everyone there is like this?" Cheng Jinzhou murmured. Bishop Kant was still instructing the tailors how to make clothes he was satisfied with. In a few minutes, he put on a work jacket again. deep V-neck.Underneath the jacket, of course, he was still naked.

Father Li Zhong patted his forehead in shame and said, "No, I have never seen anyone like Bishop Kant. Most bishops are, you know, very serious and cautious people."

"I believe most pastors and priests are also serious and earnest people."

"Of course, it must be." Li Zhong was happy that Cheng Jinzhou found his way back.

Cheng Jinzhou pouted and said, "He was probably kicked out."

"what?"

"He was driven out. We feel perverted when we see this kind of animal. Those old people in the church may not be able to eat it anymore." Cheng Jinzhou was an unscrupulous commentator. He was not afraid of Father Li Zhong at all.

As a senior person in charge of the local church, Li Zhong could not do whatever he wanted like Cheng Jinzhou. He just nodded slightly and said: "In short, his report is still valuable. If you are sure that you are the favored person of God, you will get Unexpected benefits."

"Like?"

"Develop the resources and manpower of the local church." Li Zhong raised his eyebrows, and it is naturally his dream to develop Daxia.He needs to give the sanctuary a reason.

Cheng Jinzhou laughed twice, and just as he was about to say something, his body started to move involuntarily.

Bishop Kant was still waving his arms, dragged Cheng Jinzhou in and shouted, "Oh, you are the lovely patron of God, let uncle help you look at the star map."

……

(End of this chapter)