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Free Web Novel,Novel online - All in oicq.net -> Historic -> Datang: I was exposed by Princess Changle Chapter 103 With such an artifact, the chances of winning are increased by one point!
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The main components of glass and crystal are silicon dioxide. Ordinary glass contains various random impurities, while crystal is silicon dioxide with high purity.
Therefore, the crystal has better light transmission and more uniform refractive index. Crystals are more suitable for telescopes than glass.
In fact, people hope that the materials used to make lenses or mirrors have good refractive properties, high light transmission, no obvious color absorption, etc., but the materials used to make lenses or mirrors are usually silicate-containing materials. optical glass.
The principle of the telescope is very simple, using the refraction of the light through the lens or the reflection of the light by the concave mirror to make it enter the small hole and converge into the image, and then pass through a magnifying eyepiece to be seen.
Lin Xuan probably knows the raw materials, principles and basic process of making a telescope, but he doesn't know the specific steps of how to make a telescope, but he has a system.
The method of exchanging system points for making telescopes came out immediately.
Now there are dozens of boxes of very pure natural crystal gems in his mansion.
Lin Xuan didn't know how it came here, anyway, it was sent by others one after another.
As long as these crystals are polished into lenses and reflectors, and then the distance is adjusted, a telescope can be made to see things thousands of kilometers away.
But to manufacture it, it takes a lot of time to polish it carefully.
After all, the telescope is also a very delicate instrument. Slowly experimenting, it can be made under such simple conditions.
Of course, it must not be as advanced, as clear, and as far away as the telescopes of later generations.
But it is enough.
It is really not easy for Li Lizhi to know about pinhole imaging.
?It seems that Li Lizhi, as a boudoir girl, is not just a person who just sticks to reading old-fashioned women's precepts books. No wonder the insights revealed before are also extraordinary.
Lin Xuan was also a little surprised, it seems that Changge's family background must be extraordinary!
After the maid brought the ice, Lin Xuan carefully smashed out a piece of ice, and then slowly carved it with an awl.
Li Lizhi and everyone else looked surprised and puzzled.
Lin Xuan said slowly: "Changge, these concave mirrors and convex lenses studied by Mozi can allow us to see a different world."
Lin Xuan polished the convex lens first, and it was relatively simple to polish it finely with ice cubes.
A convex lens is actually a magnifying glass.
Everything you see will be magnified.
"Here, this is a convex lens."
"The convex lens with a thick center and thin edges mainly focuses light."
Lin Xuan said lightly.
Lin Xuan demonstrated it once, and Li Lizhi held it in front of her eyes and was completely dumbfounded.
These are all extremely profound knowledge in the "Mo Jing", and she just heard about them
And brother Xuan can really make it?
Brother Xuan is really amazing!
After a while, Lin Xuan polished a concave lens.
He held it in his hand and said, "This is called a concave lens."
"A concave lens with a thin center and thick edges mainly diffuses light."
"The objective lens and eyepiece on the telescope are usually composed of these lenses or mirrors."
"To put it simply, this telescope is equivalent to clairvoyance. Standing in place, you can even see birds and beasts thousands of meters away!"
Hiss!
Everyone gasped!
Clairvoyance? !
Artifact!
An absolute artifact!
Could it be that the young master is a fairy?
No wonder it is so extraordinary!
He took out all kinds of artifacts casually, and the look on his face seemed to be the most common thing for him!
It is really astonishing as a fairy!
And when Li Lizhi realized it, her face was full of shock and ecstasy!
With this clairvoyance, in this war with the Turks, their Datang will be able to seize the opportunity one step ahead of the enemy!
The first opportunity in war is extremely important, whoever can seize the first opportunity will have the advantage of victory!
At this very moment, Li Lizhi wanted to tell his father, Emperor Li Shimin, the great news!
Li Lizhi asked with joy and excitement: "Brother Xuan, how many binoculars do you have?"
"Can do a lot"Are you coming? "
Lin Xuan replied lightly: "At present, this is the only one I have made, and I am still debugging."
"After the parameters are adjusted and there are enough pure natural crystals, we can naturally make a lot of them."
Li Lizhi was ecstatic when she heard the words!
That's good!
It seems that it is not particularly difficult to make a lot of telescopes!
She immediately wrote a letter to her father and sent someone to send a lot of pure natural crystals. By the way, a lot of craftsmen are needed, just let Brother Xuan teach them how to do it.
With binoculars, the soldiers have a better chance of winning against the Turkic army on the battlefield!
And she may also be able to escape the tragic fate of marrying a Turkic marriage!
She doesn't want to marry!
Maybe if she hadn't met Brother Xuan, she might have accepted her fate because of it!
Because from the moment she was born, as the most honorable princess of the Tang Dynasty, she was destined to shoulder the responsibility and honor of the royal family! (Remember the site URL: www.hlnovel.com - Didn't finish reading? Add this book to your favoritesI'm a member and bookmarked this chapterCopy the address of this book and recommend it to your friends for pointsChapter error? Click here to report
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