Northern Song Dynasty Revitalization Strategy

Chapter 536 The Moon That Changes Color
Looking at the bright moon from the east, Zhao Huan was deeply moved. Under his leadership, Da Song finally took a step forward on the basis of Han and Tang.

At least Galileo was not the first to be able to see that the moon is a ball.

Zhao Huan adjusted the huge telescope, and it was not appropriate to call it a telescope at this time.

This instrument was made under the guidance of Zhao Huan, and it took a whole year to complete it.

The telescope of the Bianjing Royal Observatory is composed of two lens barrels, one is called a star finder, and the purpose of this star finder is to align the huge telescope with the stars to be observed.

Two officials of the Qin Tianjian were slowly turning the chassis of the telescope, while another young supervisor of the Qin Tianjian was looking for the moon in the night sky through the finder mirror.

The field of view of the telescope is still too narrow.

"Three points from the left, two points from the right. Okay, don't use it, the latitude and longitude table is calibrated!" The young supervisor of Qin Tianjian shouted loudly.

Another officer carefully stirred this disc, which was the coarse quasi-focus screw on the observation mirror to adjust the focus.

The young prisoner put his eyes on the observation mirror and shouted loudly: "Three and a half weeks to the left. Change to fine focus, and five and a half weeks to the right! Okay, go back slowly! Stop! Officials, get it right."

Zhao Huan sat on the stool and waited for the young supervisor to focus on the moon, then stood up and walked into the observation mirror.

Today is the Shangyuan Festival. The moon on the fifteenth day is round enough. Standing on the top of the mountain, you can see that the moon is like a silver plate embedded in the dark blue sky, shedding a piece of silver light, and the moon is surrounded by a faint halo. .

This layer of full moon is as soft as cotton wool.

And the floating clouds as light as silk, surrounded by the bright moon, slowly rising, and the clear light reflects the surroundings into a circle of colorful light, which is deep or shallow, vague or absent.

This layer of halo is the halo, from inside to outside, from red to purple.

"Red, orange, yellow, green, blue, blue, and purple, whoever holds the color will dance in the sky." Zhao Huan muttered to himself, looking at the rainbow-like moon halo.

Zhu Lian's eyes couldn't stop being surprised, this kind sentence surprised her!
"Officials, where did this sentence come from?" Zhu Lian asked Zhao Huan while supporting him.

Zhao Huan wiped the sweat from his forehead and said, "A quatrain that comes by chance. It comes by chance."

"Maybe it will rain tomorrow?" Zhao Huan quickly changed the subject.

The moon is halo and wind, and the foundation is moist and rainy.

[Weather forecast: The temperature in Bianjing tomorrow will be -7°C to -3°C, cloudy to light snow, and the intensity of ultraviolet rays will be weak, suitable for travel. 】

Zhao Huan came to the observation mirror in three steps and two steps at a time. For Zhao Huan, the skill of changing the topic is still a little shallow.

"Where is there any rain in winter?" Zhu Lian followed Zhao Huan to the observation platform.

Zhao Huan looked at the moon in his eyes, looked at it again in disbelief, and finally confirmed that he was right...

The telescope in the mirror is indeed a ball.

There's no doubt about it, but the colors are a little off.

The moon in the telescope is a red moon!

Zhao Huan was shocked by this. He looked up at the bright yellow moon, and then looked down again. It was still a red ball floating in the deep space.

Because of the horizon, the red ball is still moving slowly in the sky!

Mom!Did it suddenly become supernatural?

Where is the problem?

Zhao Huan took out the paper from his sleeve, and it was indeed modeled after Galileo's astronomical telescope!
Is the moon in Song Dynasty red? !

Things get magical!

After Zhao Huan finished observing, his face became cloudy and uncertain, and Zhu Lian also looked at it curiously, and was also terrified!

A red ball suddenly appeared in front of the eyes, fluttering non-stop.

"Go get the other one!" Zhao Huan shouted loudly!

What went wrong!

Observing the moon and confirming that the celestial bodies are all spherical, such a thing, how did such a thing as a red moon appear? !

Another smaller telescope, about three and a half feet long, was lifted out.

At this time, the officials of Qin Tianjian, after adjusting the angle, handed over the telescope to Zhao Huan for observation.

Zhao Huan looked inside and saw that the moon in the mirror was actually green!

He was lost.

Will the moon change color?

Isn't this Da Song the Da Song in my impression?

The young supervisor of Qin Tianjian took a look through the lens, but didn't dare to look at it.

Everyone knows what the red moon represents, it is a bad omen!

But the official family is a rare Ming monarch in the Song Dynasty. He led the Song Dynasty to recover the monarch of the sixteen prefectures of Yanyun. Is this a bad omen?

The green color of the other telescope obviously became even weirder!
"There is another one!" The young supervisor of Qin Tianjian brought another binoculars panting at a speed no less than that of Zhao Ying's running. After adjusting the angle, Zhao Huan took a look.

This time it's purple...

This made Zhao Huan feel a little nervous, what kind of trouble is this!
What a color your moon has changed on the Mid-Autumn Festival!
It was clearly the moon emitting bright yellow moonlight, but if what he observed were black rocks, which was in line with his usual impression, it would be fine.

Why did the astronomical telescope I built look like this?

Su Xie is the main person in charge of supervising the operation of these three astronomical telescopes. When he saw the three-colored moon in the lens, he was a little frightened. .

"Officials, I think... I think it's because of some impurities in the glass that the lens is fired." Su Xie had to give the official an explanation.

Otherwise, if the discolored moon in this lens is put into the hands of someone with a heart, it will be ironclad evidence to criticize the officials!

Zhao Huan looked at the notebook in his hand, and after looking through it for a long time, he realized that the discoloration caused by the impurities in the fired lens mentioned by Su Xie was only one of the reasons.

The most important thing is that there is something wrong with the structure.

Due to the use of a single lens as the objective lens, there is severe chromatic aberration.

If you want to obtain a good observation effect, you need to use a lens with a very small curvature, which will inevitably result in the lengthening of the mirror body.

So Galileo to Kepler, for a long time, astronomers have been dreaming of making longer and larger telescopes.

This is also the reason why the moon in the horizon changes color repeatedly.

chromatic aberration.

It would not be so magical until Dulong studied the refraction and dispersion of glass and water, established the theoretical basis of achromatic lenses, and made achromatic lenses with flint glass.

It is not that there is a problem with science, but that there is a problem with Da Song's technology.

"There is a long way to go!" Zhao Huan patted Su Xie and said.

He drew the shape of a prism, and next year Su Xie had to ask Su Xie to study the index of refraction, otherwise, this lens would always be this weird moon with different colors.

"Let's use these observations for the time being. Let's take a look at the stars first." Zhao Huan signaled Qin Tianjian not to care about the color.

When Zhao Huan left the observatory, Li Gang told the young supervisor of the Qin Tianjian that the matter of the moon changing color must not be spread outside.

Regarding Li Gang's instructions, the young supervisor of Qin Tianjian nodded repeatedly.Observation still needs to be observed, but the color can only be temporarily left blank.

Zhao Huan left the observatory, and the streets of Bianjing were full of lights. On a night when the moon was high, thousands of colorful lights rose into the sky and floated over the entire city of Bianjing.

That's when the people put up Kongming lanterns.

There are many fires every year, and every year on this day, officers and soldiers cannot rest.

Zhu Lian was also full of liking when she looked at the colorful lanterns all over the sky. She remembered the poem "Sapphire Case·Yuan Xi" that Zhao Huan gave her last year, which has now spread all over the Song Dynasty.

Zhu Lian pointed to the big lamp in front of him and said: "Officials, look quickly, the high lamp in Aoshan!"

The Aoshan High Lantern is the largest lamp in the entire lantern festival, 260 feet long and [-] five steps wide, supported by two Ao pillars in the middle, swimming above the lantern festival like a giant dragon.

Zhao Huan didn't intend to leave the car, if he went down, the inspectors of the Imperial City Division would have to clean up the entire street, otherwise the emperor's safety would be a problem.

Because he could only stay in the car, watching the lively lantern festival from afar.

He would like to have fun with the people, but the reality is that he can only watch from a distance.

Zhu Lian had known for a long time that she couldn't get out of the car when she came this time, and could only watch from a distance but not up close, but she still couldn't stop her interest.

She looked at the person surrounded by people in the distance and said loudly: "That's Li Shaoyin!"

Zhao Huan nodded. Li Ruoshui, Shaoyin of Kaifeng Mansion, would bring the "red envelope" given to him by the emperor every year at the Yuan Lantern Festival, which contained money worth one silver dollar and was specially distributed to all Small vendors at the Shangyuan Lantern Festival.

This behavior is called buying a market.

The common people who received the red envelopes would give a lamp to the Yamen servants of Shaoyin in Kaifeng Prefecture, and these lamps would be hung on the top of the palace of the Great Song Dynasty, making the whole palace beautiful.

At the Lantern Festival, every few steps, you can see a soldier of the Gyeonggi Imperial Army.

They stood in the crowd in full body armor, with long and short soldiers and crossbows in their hands to ensure the safety of the temple fair.

A few people were tied up on the side of the road, and a board was stuck behind their necks, and the crimes committed by these people were written.

These people were all thieves or rangers caught at the Lantern Festival, and they committed strange crimes.

For example, snatching hairpins and jewelry from women's heads; or misbehaving;

Of course, Zhao Huan knew that this was actually a performance. Many of the prisoners who were tied up were prisoners from Kaifeng Mansion, Xing Prison, and Dali Temple Prison, and they were temporarily pulled over to be actors.

With that armor, can he catch up with a thief? !

Everything on the surface is just scaring people.

It was the scouts of the Imperial City Department who really took the initiative to catch the thief. If they caught them, they would definitely be severely punished.

Zhao Huan leaned on the car, staring blankly at the laughter on the faces of the people at the Lantern Festival in Shangyuan. What a wonderful era. How did the emperors of the Song Dynasty ruin this beautiful country?
Zhu Lian said with rosy cheeks: "Officials, last year I wrote "Sapphire Case·Yuanxi" for my concubine, and I will write another one for my concubine this year."

Ok?
　Thanks to "another novice" and "book friend 20190727000101580" for their rewards, thank you for your support.

　　
　
(End of this chapter)