Under Li Chengqian's gaze, something was touched out of Yaoyao's arms.

The first one is of course an instrument used to measure their current height, as well as the rising and falling speed.

I took it out and used two small wallets to fix them on the frame of the hanging basket.

Immediately afterwards, Yaoyao took out a multi-spectrum/thermal imaging/rgb three-in-one remote sensing camera from behind.

The resolution of this camera is 120 meters away from the ground, and the resolution of the land object can reach 5.2 cm.

Of course, Yaoyao felt that this was completely unnecessary.

Because, she just needs to know from a wide range that there is something nearby.

Therefore, Yaoyao also assigned tasks to Li Chengqian next.

"Wait a minute, Your Highness, you are responsible for looking at the numbers on these two instruments. The one on the left is the height, just like now, there is 200 here, which means that we are now two hundred meters above the ground, which is about six hundred feet high."

"Your task is to pay attention to this number. When it goes down, you open the valve here and heat the air inside the airbag. After adding heat, we will rise again."

"And here is an instrument that can see the speed of our rise and fall. It can reflect whether we are rising or falling now, and how fast we are rising and falling."

"The hot air balloon will rise and fall, which is its movement trajectory. You have to keep the hot air balloon at a relatively stable height."

"In this way, my shooting height can be kept consistent."

Yes!

Yaoyao next planned to make a remote sensing map. Of course, no matter how accurate it is, you can win. At least it has much more information than hand-drawn maps.

in addition……

Although the accuracy is not as good as satellite maps, it should be completely no problem to beat the maps of this era.

Li Chengqian naturally didn't know what she wanted to do.

"Then what are you doing?"

"And I can't understand the number."

After hearing Li Chengqian's words, Yaoyao couldn't help but say, "Look! This is the result of not studying hard and being distracted in class."

He made up for Li Chengqian's temporary mistakes from 0 to 9, and then Yaoyao had time to use a remote sensing camera to shoot.

To be honest, the height of 200 meters is still too low.

However, it was the first test flight after all, so it didn't matter. The main reason was that in this way, more data could be collected.

Data is experience, and experience brings reflection, technological innovation, and technological progress.

Before each shot, Yaoyao will ask the reading on the altimeter, because as long as you know the height and then know the lens focal length of the remote sensing camera, the horizontal arc, and the vertical arc, you can invert the true distance from point to point on the ground.

At that time, the area of ​​a piece of land will be no problem.

Yaoyao recorded the height data of each picture and wrote it down one by one.

and……

At the same time, he also told Li Chengqian what this data can do.

Of course, I just said it simply, because of the formula or something, and she might not necessarily understand it after she said Li Chengqian.

In fact, the most powerful use of this thing should be to measure the land across the country, but Yaoyao didn't think so much at this time.

She just hopes that she can have a better view of the overall situation.

...

And when Yaoyao told Li Chengqian what purpose they can achieve what they do now.

Li Chengqian was also shocked by her wise demon again.

Yaoyao said this: "If the accuracy can be improved, as long as it is photographed by a remote sensing camera, no matter whether it is Zhang San's house or Li Si's house, the government officials do not need to go to his house to measure the radius of his house. Without leaving the house, you can know how big the area of ​​the houses of these two families is. You say, this is terrible or not! At that time, you can find out wherever your house has built a house and then demolish your house."

Li Chengqian was also puzzled, "Why did he demolish his house?"

Yaoyao thought about it and it seemed that there were not many illegal buildings in ancient times, at most, and it was amazing to demolish his own walls and occupy the streets.

After reacting, Yaoyao also said, "Well... you just need to know the usefulness of this thing. Don't always look at me in a blink of an eye. Although I am very beautiful, don't forget that you still have to look at the reading now. If we fall down one by one, it's over."

"Oh! I almost forgot."

Only then did Li Chengqian react and quickly heated the hot air balloon again.

This morning, the balloons flew a little slowly.

Maybe it only flies north for a meter or two per second, slowly.

There have been dozens of photos taken, and there are not many overlapping areas. Next, Yaoyao simply asked Li Chengqian to double the height of the hot air balloon.

A height of six hundred meters.

Now that I looked from the sky to the ground, Zheng Xiufei and others could only see a small dot.

Then repeat the previous steps, take pictures, and record data.

However, when the hot air balloon rises to a height of 600 meters, the field of view at this time is much wider than before.

However, the lower...

Li Demao and others were even more anxious, and their faces turned blue and said, "Why are you flying higher and higher?"

Zhao Shuyi also replied: "And it seems to move much faster than before."

Li Demao then thrust his horse's butt and said, "Come on now! If you lose Your Highness and the Crown Prince's Concubine, you and I will not have enough lives to die."

Yaoyao took dozens of sets of data at 600 meters.

at last……

She raised the height to one thousand meters again.

Then one thousand five hundred meters.

Then there are two thousand meters.

When the height rises to two thousand meters, the large terraces and mountains in the distance become clearly visible, giving people the feeling that it is like playing a strategic siege game at the forty-five degrees. Especially when you see the city, the spectacular scenery makes people feel even more open-minded. Of course, because some places on the edge are already very far away, you can also see that the closer you get to the edge, the more you feel like a layer of fog.

in addition……

The height of two thousand meters seems to be a little cold.

Fortunately, the rising sun also brought a little warmth to the two of them.

Yaoyao chuckled his hands and said to Li Chengqian: "Whenever you rise from the ground, the temperature will drop by 0.6 degrees Celsius for every 100 meters. That is to say, the higher you go, the lower the temperature will be. Are you cold?"

Li Chengqian may have been in an excited state, and coupled with the masculinity of his body, he didn't notice the coldness. He replied to Yaoyao: "It's not cold. But this is really amazing. Who would have thought that this prince is now six thousand feet away from the ground. Moreover, thousands of miles of rivers and mountains are so easy to take, and you can see it all."

It can be seen that Li Chengqian was also very shocked to see such a spectacular scenery.

However, Yaoyao did not agree with him saying that he was not cold.

actually……

He is overdrawing the heat in his body, but he just didn't notice it himself.

Maybe I got off the ground later and got sick the next day.

So, no matter whether Li Chengqian was cold or not, Yaoyao still added another piece of clothing to him.

Take out two cups of hot soy milk with ease.

"The data have been recorded. Next, Your Highness the Crown Prince will appreciate it. Look, this is the world of Your Highness the Crown Prince."

When she said this, Yaoyao was also quite proud. After all, the man she married now was the man who would have this world in the future.

If you deduce it again, looking around, it is actually her world.
Chapter completed!