After thousands of calculations, I forgot that Li Yuan's ancestor was the Hu people. Li Yuan's dragon claw didn't knock on Yun Hao's head, it was really the result of years of improving his moral cultivation.

From ancient times to the present day, the influence of Confucianism is powerful. Yun Hao wasn't stupid enough to fight against Confucianism, but who said that there couldn't be vines on the body of a big tree? Let your branches and leaves soar into the sky, but Lao Tzu is a vine that climbs up your body. From time to time, I have to absorb some nutrients from you.

As a result of crawling, the trees are as tall as the vines are. The vines might even be a little taller than the trees!

The more Li Yuan visited Yun Hao's teaching building, the more surprised he became. Those strange glazed vessels, which one is not worth a thousand gold. Yun Hao sent away the experimental equipment with a word, could it be that this kid is already rich? This has to be asked, although I am still relieved of Yun Hao in my heart. But the royal family wants to control everything in this country, as long as it is beyond the control of the royal family, it is an outlier and needs to be monitored, and if it is serious, it will evaporate from the world.

I saw Yun Hao use a mirror to set a piece of paper on fire. Li Yuan felt more and more magical, and pulled Yun Hao away and played with the magnifying glass.

"Your Majesty! This experiment proves that the propagation line of light is straight. A convex lens can focus light, and a concave lens can diverge light. The academy was looking for a suitable crystal to polish into lenses using this principle. As long as the roundness of the polishing is right, you will not have to work so hard to read the piece. The minister said that thing smells like glasses! Looking at Li Yuan, who was having fun, Yun Hao bowed down and said.

"Count your kid as filial...... What the? Can I see things clearly? "Li Yuan's presbyopia has become more and more serious in recent years, and now it is extremely difficult to read the music. Hearing that Yun Hao had something that could make him see clearly, he immediately threw away the convex lens and glared at Yun Hao and asked.

"yes, that thing can be on the ear. Let you see things clearly, but the glass made by the academy is not pure enough. The best way is to use crystals, but for a while, you can't find a suitable pure crystal. ”

"Tomorrow...... No, now you send someone to pick and choose from the inner house, and you can take whatever the inner house has. Will take as soon as possible! Li Yuan, who was plagued by presbyopia, could no longer bear it. Now that he heard that there was a way, he immediately ordered Su Jin to send someone to the inner mansion with the craftsmen. Pure crystals only, if you need pure diamonds are wood problems.

Let the eldest apprentice of the old man go to the palace, and pick the good ones anyway. There are many treasures in the palace, and one or two things are not a big problem.

There are three mirrors at the door of the laboratory, and inside the concave mirror, Li Yuan has become a watermelon head, round and rumbling. The one next to him is the opposite, with a head that diverges like a sakima. Li Yuan looked at it for a while and felt a little dizzy. It's still a normal mirror, and the inside of the mirror is delicate. The eyebrows and mustache are clearly illuminated, there is such a side in the Taiji Palace, and Li Yuan has to take a picture of the upright clothes once a day. Although, his clothes Su Jin is eight times a day.

There are face-facing concubines in the harem, but according to the degree of favor. Mirrors range from dressing mirrors to small mirrors. Yun Hao had seen some fingernail-sized ones, and he didn't know who to use them for.

Li Yuan also saw a huge fiberglass, and Yun Hao was just filling water and gas in an iron cylinder. You can control this thing to float on the surface of the water, levitate, and sink to the bottom.

Kong Ming lantern is not new, it is said that it existed during the Three Kingdoms. When he was in Jinyang, Li Yuan himself let it go. But Yun Hao depicted on a piece of paper that as long as the Kong Ming lantern was big enough, it could take people to the sky. Fly to the sky! How many generations has this been the dream, can this kid come true?

However, Kong Ming Lantern has been cast by himself, and such a small one can take away three taels of lamp oil. If it's big enough, there's a good chance that what this kid is saying is true.

Magnets are not uncommon, magnets are just magnets. Yun Hao said that the spoon made of magnets will definitely be facing the north. Li Yuan turned curiously a few times, and sure enough, each time he was facing the north.

"When this thing is brought to the battlefield, the soldiers will never have to worry about getting lost again." Yun Hao was about to popularize the principle of geomagnetism to Li Yuan, when he suddenly heard a "huh" laugh next to him!

When he looked back, his face immediately sank, and it was no one else who laughed at him. It is the eldest grandson Xiaozheng and his father, the eldest grandson Shunde.

"What advice does Xue Guogong have?" Seeing the people of the eldest grandson's family, Yun Hao felt uncomfortable. In the past two years, the eldest Sun family has been secretly and secretly, and he has made a stumbling block for the Yun family. The two families did not fight once or twice in private, but of course the Yun family, who had a vast sea, still had the upper hand.

Li Yuan's attitude towards the disputes of the nobles is generally one eye and one eye is closed. As long as the innocent is not harmed, no one will pay attention to even if the dead are dead. The Li family has Hu blood, and disputes between nobles on the grassland are generally resolved in this way.

"This thing may work on land, but the most important thing to guide is on the water. If the old man is on the water, and the water is bumpy, can you still use this thing? Even on land, how do you let the soldiers carry such a bulky thing. You can't have one person in the army to carry things. After the eldest grandson Shunde finished speaking, he looked at Yun Hao out of the corner of his eyes.

I followed Li Yuan today just to give Yun Hao eye medicine. I didn't expect to see a lot of novel things along the way, don't talk about finding faults myself. I can't even understand it! If you pick the wrong one, you will be laughed at by this kid. This thing in front of him, the eldest grandson Shunde looked at it for a while, and finally made up his mind after thinking about it for a long time, and then jumped out to embarrass Yun Hao.

"Humph!" Yun Hao snorted inside his nose and took out a magnet that was sharpened into a needle. I took another stick with a small hole in the middle!

"Xue Guogong, you can take a good look." Yun Hao threw the small wooden block with a magnet needle into the basin and spun it a few times. The magnet needle actually pointed to the north again.

"On the sea, this basin will be made of closed glass. No matter how bumpy the waves are, it will not affect his use. ”

"Hahaha! What about the land, is it possible that you let the soldiers carry a basin of ...... wherever they go! Zhang Shunsunde said half of it, and then he couldn't say it anymore. Because Yun Hao was holding a palm-sized glass ball in his hand. Inside was a magnet needle, no matter how Yun Hao rolled. The magnet needle always points north.

The eldest grandson Shunde's face suddenly turned the color of pig liver, and he really couldn't beat the fox and provoked a fuss. Yun Hao's sharp teeth and sharp mouth are well-known in Chang'an, and there must be mean words pouring out below. The eldest grandson, Shunde, is even ready to be sprayed into a sieve!

"Your Majesty! The minister has a word! Yun Hao was about to speak, when suddenly Wen Daya jumped out.