Zhao Huan looked at the bright moon coming out from the east and felt deeply moved. The Song Dynasty finally took a step forward under its own leadership on the basis of the Han and Tang dynasties.

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

Zhao Huan adjusted the huge Qianli Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Miles Mi

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

The Qianli Mile Mile Mile Mile at the Royal Observatory of Bianjing is composed of two lens barrels, one is called the Star Search Mirror. The purpose of this Star Search Mirror is to aim the huge telescope at the stars that need to be observed.

Two officials from the Imperial Heavenly Prison were slowly turning the chassis of the telescope, while another Imperial Heavenly Prison was looking for the figure of the moon in the night sky in the star-seeking mirror.

The vision of Qianli Mirror is still too narrow.

"Three points on the left and two points on the right. OK, don't use it, calibrate the Jingwei Platform!" The young supervisor of the Imperial Heavenly Prison shouted loudly.

Another official carefully stirred the disc, which was a rough quasi-focus spiral on the observation mirror that adjusted the focal length.

The young supervisor's eyes were on the observation mirror and shouted loudly: "Three and a half weeks left. Change the fine and accurate focus, and five and a half weeks right! OK, slowly turn back! Stop! Officials, it's right."

Zhao Huan sat on the stool, waiting for the young supervisor to point the focal length at the moon, stood up and walked into the observation mirror.

Today is the Spring Festival. The moon on the fifteenth is round enough. When you stand on the hill, you can see the moon like a silver plate embedded in the deep blue sky, sprinkling a silver light, and a faint halo is covered by the moon.

This full moon is soft and soft.

The floating clouds, as light as silk, are clustered with bright moons rising slowly, and the clear light reflects the surroundings into a colorful aperture, deep and shallow, as if there is nothing.

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

"Red, orange, yellow, green, blue, blue, purple, who can practice dancing in the sky with color?" Zhao Huan murmured to himself as the moon halo like a rainbow.

Zhu Lian's eyes couldn't stop being surprised, and this sentence surprised her so much!

"Official family, where does this sentence come from?" Zhu Lian asked, helping Zhao Huan.

Zhao Huan wiped the sweat beads from his forehead and said, "The quatrain I got occasionally. The quatrain I got occasionally."

"It's probably raining tomorrow?" Zhao Huan quickly changed the subject and said.

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

[Weather forecast: Tomorrow the temperature in Bianjing is -7℃ to -3℃, cloudy to light snow, weak ultraviolet rays, suitable for travel.]

Zhao Huan came to the observation mirror in three steps at a time. This skill of changing the topic was still a little shallow for Zhao Huan.

"Where is raining in winter?" Zhu Lian followed Zhao Huan to the observation deck.

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

The telescope in the mirror is indeed a ball.

There is no doubt about this, but the color is a bit wrong.

The moon in the Mile Mile Mile is a red moon!

This shocked Zhao Huan. He looked up at the moon emitting bright yellow light, and then looked down at it. It was still a red ball floating in the deep sky.

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

Mom! Did you suddenly become a supernatural?

Where is the problem?

Zhao Huan took out the letter from his sleeve, which was indeed made by Galileo's astronomical telescope!

Is the moon in Song Dynasty red?!

Things became magical!

After Zhao Huan's observation, his face became gloomy and sunny, and Zhu Lian also took a curious look, and was also shocked!

A red ball suddenly appeared in front of you and kept floating.

"Go and take another one!" Zhao Huan shouted loudly!

Something went wrong!

Observing the moon, confirming that the celestial bodies are all spheres. How come things like Red Moon appear in this case?!

Another small Qianli Mile Mile Mile, which was slightly smaller and about three and a half feet long, was carried out.

At this time, the officials of the Imperial Heaven Supervision adjusted the angle and handed the telescope to Zhao Huan for observation.

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

He was in confusion.

Will the moon change color?

Could it be that this Song Dynasty is not the Song Dynasty in my impression?

The young prison of the Imperial Heaven Supervision looked through the lens and didn't dare to look.

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

However, the official family was one of the few wise monarchs in the Song Dynasty. They took the Song Dynasty to recapture the monarchs of the Sixteen Prefectures of Yanyun. Are these all bad omens?

The green color of another Qianli Mile Mile mirror obviously becomes even more weird!

"There is one more!" The Imperial Heavenly Prison's minor surveillance was no less than Zhao Ying's running speed, and he brought another Thousand Mile Mile Mile Mile Mile. After adjusting the angle, Zhao Huan glanced at it.

This time it's purple...

This made Zhao Huan feel a little nervous. What a fuss!

What color will you become when you have nothing to do during the Moon Festival!

It was a moon that was clearly emitting bright yellow moonlight, but if the black rocks were observed, it would be perfect for him to see it.

Why did the astronomical telescope I made look like this?

Su Xie is the main person in charge of supervising the three Astronomy Thousand Mile Miles. He was a little scared when he saw the three colors of the moon in the camera. If the people from the Jingtai knew about it, it would be strange if they didn't apply to his book.

"The official, I think... I think it is because of the lens that burns the glass, so some impurities will be like this." Su Xie must give the official an explanation.

Otherwise, if the moon that changes color in this lens is put into the hands of those who are interested, it will be a proof of attack on the officials!

Zhao Huan looked at the letter in his hand, and he looked through it for a long time before he realized that the discoloration caused by impurities in the firing lenses that Su Xie mentioned was only one of the reasons.

The most important thing is that there is a structure problem.

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

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

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

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

Color aberration.

It was not until Duroon studied the refractive and dispersion of glass and water and laid the theoretical basis for achromatic lenses that it was not so magical.

It’s not that there was a problem with science, but that there was a problem with the technology of the Song Dynasty.

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

He drew the shape of a prism and had to ask Su Xie to study the refractive index next year, otherwise this camera would have been this strange moon of different colors.

"Let's use these observations for the time being. Let's take a look at each star first." Zhao Huan signaled that the Imperial Heaven Supervision would not be aware of the color issue.

When Zhao Huan left the Observatory, Li Gang instructed the young prison of the Imperial Heavenly Prison that the moon changed color must not be transmitted outside.

Regarding Li Gang's instructions, the Young Superintendent of the Imperial Heaven Supervision nodded repeatedly. Observation still requires observation, but this color can only be temporarily left blank.

Zhao Huan left the observatory, and the streets of Bianjing were filled with lights. On the night when the bright moon was hanging high, thousands of colorful lights rose into the air and floated over the entire Bianjing city.

That is when the people lit the Kongming lanterns.

Many fires occur every year, and on this day every year, officers and soldiers cannot rest.

Zhu Lian was also very fond of the colorful lanterns in the sky. She remembered the poem "Qingyu Case·Yuanxi" given to her last year, which has now spread throughout the Song Dynasty.

Zhu Lian pointed to the big lamp in front of him and said, "Official family, look, the high lights of Aoshan!"

The high lantern of Aoshan is the largest lantern in the entire lantern festival. It is 16 meters long and 265 steps wide. There are two tars of pythons in the middle, circling on the lantern festival like a giant dragon.

Zhao Huan did not plan to leave the car. If he went down, the guards of the Imperial City Department 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 and watch the lively lantern festival from afar.

He thought to be happy with the people, but the reality is that he could only watch from such a distance.

Zhu Lian had known that he had come this time and could not get off the bus. He could only look from a distance and not close, but he still couldn't stop her interest.

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

Zhao Huan nodded. Li Ruoshui, the young Yin of Kaifeng Prefecture, would bring the "red envelope" sent to him by the emperor every year during the Yuan Lantern Festival, which contained a silver dollar worth of money, and specifically sent it to all small vendors of the Yuan Lantern Festival.

This behavior is called buying a market.

The people who receive the red envelopes will give the yamen runners of Kaifeng Prefecture's Shaoyin a lamp, which will hang onto the top of the Song Dynasty Palace, making the entire palace beautifully.

At the lantern festival, you can see a soldier from the Gyeonggi Imperial Army every few steps.
To be continued...