Only the little fat man Li Tai stared at Li Xuan for a long time with big eyes, his face full of longing.
Seeing that his father and mother are leaving.
Uncle Wang hadn't given him a gift yet, so Li Tai couldn't help but raise his eyebrows and look at Li Xuan with an aggrieved face.
"Uncle Wang, Uncle Wang, where is Qingque's gift?"
"Forehead!"
Li Xuan was startled, and a trace of doubt flashed in his eyes.
After thinking for a long time, the little fat man finally recalled it before he was about to cry.
I seem to have forgotten this little fat man’s gift!
He quickly chuckled, looked at Li Tai and asked, "What does Qingque like?"
"Back to Uncle Wang, I like reading books!"
Li Tai quickly replied.
"Reading a book?"
Li Xuan frowned slightly, he didn't have many books.
"Don't worry, Xuanba, I was anxiously waiting for you today, it's not too late to give Qingque a gift in the future!"
Seeing this, Li Shimin said.
Hearing this, Li Tai couldn't help but feel disappointed.
However, Li Xuan had a flash of inspiration in his heart.
"I happen to have something that Qingque will definitely like!"
After saying that, he turned around and walked back into the house.
Soon, he walked out with a small object in his hand.
When Li Shimin, Li Tai and others saw the appearance of the object, they couldn't help but have doubts on their faces.
It's just a handle made of purple sandalwood, with a sandalwood ring in front and a circular piece of glass wrapped inside. What's the use of this?
But they didn't realize that Li Chengqian, Li Baoding and others had strange faces.
"Qingque, this thing is called a magnifying glass. It was carefully crafted by a calligrapher. If you put this lens on the text, you can magnify the text!" Li Xuan said.
"Enlarge text?"
Li Shimin and Empress Changsun both looked surprised.
At this moment, Li Xuan had already handed the magnifying glass to Li Tai's hand.
He took out a small book from under the coffee table, flipped through it, and motioned to Li Tai to put the magnifying glass on the words.
"ah?"
Li Tai was suddenly shocked.
Sure enough, he saw that the words on the small book had become really big.
He quickly moved the magnifying glass away, and the text on the small book returned to its original state.
I couldn't help but feel shocked and regretful.
"Xuanba, how did you do this?"
On the side, Li Shimin and Empress Changsun also had shocked faces.
"This is just using the properties of glass, just like clairvoyance!"
Li Xuan chuckled lightly and did not explain in detail.
Although this kind of thing seems simple, if he wanted to explain it clearly to Li Shimin, he might not be able to explain it clearly in a day.
"Thank you, Uncle Wang!"
Li Tai saluted and thanked Li Xuan with a happy face.
"Qingque, this magnifying glass can not only magnify text, but also magnify the heat of the sun, so don't use a magnifying glass to look at the sun!"
This time, Li Xuan looked serious.
"Uncle Wang, can a magnifying glass magnify the sun?"
Li Tai looked confused.
Hearing this, Li Xuan's eyes flashed with helplessness.
"Take the magnifying glass and come out with me!"
Then, he took out a piece of paper from under the table and walked outside the room.
"Yes, Uncle Wang!"
Li Tai held the magnifying glass with a happy face and followed Li Xuan out.
Behind him, Li Shimin, Empress Changsun and others also followed out with curious faces.
Li Xuan found a place with sufficient sunlight and placed the paper in his hand on the ground.
Then, he asked Li Tai to walk over, put the magnifying glass in his hand on the paper, and constantly adjust the position.
"Xuanba, what are you doing?"
Li Shimin asked curiously.
"Your Majesty, please be patient and you will know in a moment!"
Li Xuan still stared at Li Tai closely without turning his head.
Seeing this, Li Shimin smiled helplessly and looked at Li Tai without saying anything.
"Um?"
Suddenly, a line of white smoke rose from the paper.
Before Li Shimin could ask in surprise, the piece of paper burned out of thin air.
"Uncle Wang, the paper is on fire!"
On the ground, Li Tai jumped up with a look of shock on his face.
"No need to worry, you lit it yourself!"
Li Xuandao.
"What?"
Li Tai's face was full of surprise and he quickly explained: "Uncle Wang, I didn't use flint to light the paper!"
"It's a magnifying glass that concentrates the temperature of the sun, magnifies it many times, and slowly ignites the paper!"
Li Xuan explained.
This time, Li Tai understood. With his eyes wide open, he glanced at the magnifying glass in his hand, and then at the paper on the ground.
This was the first time he had used a fire since he was a child, and his eyes were full of excitement.
"Therefore, when you hold a magnifying glass, never look at the sun, otherwise it will burn your eyes. Don't hold a magnifying glass around in the sun all the time, as it will ignite things!"
Li Xuan warned again.
Before, those bastards Cheng Chusi and Li Chengqian almost burned down his small courtyard!
"Uncle Wang, please put it down, Qingque will definitely not look at the sun with a magnifying glass!"
Li Tai said solemnly.
"That's it, that's good!"
Li Xuan nodded lightly. He had already said what he needed to say. As for whether this little fat man would use a magnifying glass to take a look at the palace, it had nothing to do with him.
"Xuanba, can you give me more of such a divine thing?"
On the side, Li Shimin also came back to his senses and looked at the magnifying glass in Li Tai's hand with an incomprehensible expression.
"Xiao Xiang, Master Kong, and a group of great scholars have been reading books all year round. Now, whenever the text is too small, they need to put their eyes on the books to see clearly. Therefore, I would like to reward you with some magnifying glasses.
Give it to these veterans so that they don’t have to work so hard reading books!”
"Of course you can!"
Li Xuan chuckled lightly and continued: "However, every time you read, you need to hold a magnifying glass in one hand. It is too inconvenient. You can ask the doctor to make some glasses and wear them directly on your eyes. In this way, the old ministers, regardless of
Whether you are reading or walking, you only need to wear glasses!"
"Glasses?"
Li Shimin's face was full of doubts again.
"Your Majesty, glasses are two pieces of glass made together and can be worn directly in front of the eyes!"
Li Xuan briefly introduced.
Hearing this, Li Shimin was very interested.
"So, please bother Xuan Ba!"
"No problem!"
Li Xuan chuckled lightly and said: "However, these glasses require those people to come to Lijiazhuang in person, and the doctor will personally adjust the thickness of the glass according to the condition of those people's eyes, so that suitable glasses can be made!
"
"Don't worry Xuanba, I will inform those people after I go back!"
Li Shimin said.
"Your Majesty, there is a charge for these glasses, one pair of glasses is the same!" Li Xuan said.
"TOLL?"
Li Shimin was startled, with a strange look on his face. Those few were important officials in the court and great scholars in the world.
"nature!"
Li Xuanli said confidently, "It takes so much effort to make glasses for them. If we don't charge a fee, wouldn't it mean that some Mohist practitioners have wasted their efforts?"
"Xuanba's words make sense!"
Hearing this, Li Shimin didn't know how to refute.
"I will tell those people about this!"
"Um!"
Li Xuan nodded lightly.
Afterwards, Li Shimin, Empress Changsun and others left happily.
As for the magnifying glass, Li Xuan did not give it to Li Shimin.
Although he still has some of these magnifying glasses at home.
However, I just gave the magnifying glass as a gift to that little fat guy Li Tai, so I can't just turn around and take out a dozen more.
Li Xuan thought he couldn't do this kind of thing!
You have to wait at least a few days.
And, you have to pay for it!
"Master, can you also make some glasses for Master Li?"
After Li Shimin left, Li Chengqian suddenly said to Li Xuan.
"Of course you can!"
Li Xuandao.
"Thank you, Master!"
Li Chengqian's face was filled with joy.
Although Master Li is a bit annoying on weekdays, he is also sincere to him!