When Zhang Zhang heard this question, he raised his head, thought for a moment, and said, "I'm afraid it's been four or five years. The past two years have been particularly serious!"
The boy took out a pair from the glass, handed it to Accountant Zhang and said, "Try this, it's three hundred degrees!"
Accountant Zhang was stunned, looked at the boy and asked, "How to try?"
The boy smiled sheepishly and said, "Look, I'm so excited and confused. How do you know how to try it on when you come here for the first time? I'll help you put it on!"
Just as Accountant Zhang was about to answer, the boy handed over the pair of glass pieces while talking to himself, stuck the wooden frame on Accountant Zhang's ears, and pressed the middle beam of the glasses against the base of Accountant Zhang's nose.
Two pieces of glass were blocked in front of Zhang Accountant's eyes.
Accountant Zhang was stunned for a moment, unable to react, and said, "What are you doing?"
"Cure your presbyopia!" the boy said loudly. He raised a copy of "Spring and Autumn" in his hand, turned to the first page, raised it to Zhang Zhang's eyes and said loudly: "Old man, now you can see through the glass
Are the words on this book clear?"
Accountant Zhang squinted his eyes when he heard this and looked at the "Spring and Autumn" through the glass.
Strangely enough, through these two pieces of glass, Accountant Zhang could vaguely see the contents of the first page of the book. Although it was still unclear, it was much clearer than when he was not wearing glasses.
These glasses are really useful!
It turned out that the Li family used this glass to treat presbyopia, so no wonder they didn't see any doctor. Accountant Zhang looked at the shop with his glasses on, and then he saw clearly that the shop was gorgeously decorated and didn't look like a scam.
I worry too much.
"It's a little clearer, but it's still a little blurry!" Accountant Zhang looked at the boy's glasses box with some anticipation, looking at the more than 20 pairs of glasses inside.
"Then try 350 degrees again!" The boy took off the glasses on Zhang Accountant's nose and put on a new pair of glasses for him.
"It's even more blurry, not as good as before!"
"Then try 250 degrees!" The boy took out a new pair of glasses from the box.
"I saw it! I saw it clearly!"
Accountant Zhang was a little excited and stood up with a loud shout. Putting on these "250-degree" glasses, Accountant Zhang could clearly see everything on the first page of the Spring and Autumn Annals half a step away.
What a magical thing is this? The presbyopia that had tortured him for several years was conquered by these two small pieces of glass, allowing Zhang Zhang to see the words in the book clearly again!
"It's useful! It's really useful!"
Accountant Zhang slapped his thigh, took the Spring and Autumn Annals from the boy, flipped through the pages page by page, and found that he could read every word in the book clearly.
Accountant Zhang believed in his own eyes. He could really see clearly and it was definitely not a trick. With these glasses, wouldn't he be able to help his boss keep accounts again? Can he save his one-two-eight-yuan job?
This new thing from the Li family is magical!
The boy asked Accountant Zhang to try the 225-degree and 275-degree ones, and finally found that the 250-degree one worked.
Accountant Zhang happily held the 250-degree glasses, looked left and right, and asked happily: "How much does a pair of these glasses cost?"
"Ten taels of silver!"
Hearing this, Accountant Zhang was stunned. Ten taels of silver is not cheap! It is worth half a year's monthly salary!
But no matter what, it's more cost-effective than losing the job, right?
After thinking about it, Accountant Zhang asked: "Can it be cheaper?"
"Old man, this is the cost price, it can't be cheaper. It's made of colorless glass? Can it be cheap? But don't worry, if your presbyopia gets worse in the future, you can get 250-degree glasses to replace them with higher height.
We won’t charge you any money and will exchange the glasses for free!”
Accountant Zhang still had some savings. After hearing this, Accountant Zhang made up his mind to buy him a pair! The goodwill of the Li family is here. If you say you can exchange it, you can exchange it. Buying a pair of glasses means you will be free from them for the rest of your life.
If the problem of presbyopia is gone, I can continue to work as a bookkeeper until I can no longer walk.
Accountant Zhang was anxious to do the accounting while wearing glasses, and asked his employer to continue hiring him, saying: "I'll go home and get the money. When will you close the door?"
The waiter smiled and said, "Go slowly! Don't be in a hurry! You are our first customer. If you don't come back, we won't close today!"
In mid-March of the ninth year of Chongzhen, Fanjiazhuang's city wall was completed with bricks.
A total of 2.88 million green bricks and 580,000 kilograms of cement were used to cover the three sides of the city wall. The perimeter of the brick-clad city wall was 3,000 meters, five meters high and three meters wide. A horse surface was built every 20 meters on the city wall.
There are one hundred and fifty horse faces in total. There is a crenel every one and a half meters, and there are two thousand crenels in total.
The city wall is very wide and can be used for horse racing. There are sixteen heavy artillery forts on the city wall, four on each wall.
The built city wall is straight and towering, very beautiful, and makes the entire Fanjiazhuang look very safe. Whether it is a textile factory, a soap workshop, a glass workshop, a cement workshop, or Fanjiazhuang's private residences and military camps, they are all now protected by the towering city wall.
After repairing the city wall, Li Zhi asked this group of masons to continue building villas to provide housing for Fanjiazhuang, which continued to expand.
In mid-March, the gunsmiths successfully produced the "standard long cannon".
The standard long gun made by gunsmiths is an 18-pound gun with a caliber of four inches, a gun length of ten feet, a direct range of 1,500 meters, and a maximum projectile range of 6,000 meters. Li Zhi's gunsmiths used iron-core copper
The body-casting cannon reduced the weight of the cannon from the theoretical 3,700 kilograms to 3,200 kilograms, and the cost dropped to 380 taels per gun.
Li Zhi asked the gunsmiths to transport the artillery to the shooting range and let the artillery shoot at a large iron plate two meters long and wide five hundred meters away.
The blacksmiths were embarrassed when they saw that the target was so far away, but they still shot as required.
When they arrived at the shooting range, the gunsmiths drove the carriage to adjust the direction of the artillery. Then four people lifted the carriage door and two people pulled the carriage, and then the artillery was unloaded from the carriage. Then the gunsmiths began to clean the gun bore, using two types of brushes.
After brushing the gun barrel once each time, they began to use the gun gauge, gun ruler and moment to measure the angle of the cannon and the amount of gunpowder. After calculating, the gunsmiths poured out the gunpowder from the standard gunpowder bag and pounded it with wooden sticks. Then again
Put in the cannonballs and pound them again. Then pour some gunpowder on the fire door and insert a match rope.
Cao Yu, the leader of the gunsmiths, lit the match, which quickly ignited the gun. Only a loud roar was heard, and the 18-pound cannon spit out tongues of flame and sprayed shells towards the large iron plate in the distance.
The first shell flew out like a bolt of lightning and disappeared from everyone's sight in an instant.
The cannonball missed the iron plate.
Li Zhi knew that the target was too far away, so he asked people to move the iron plate 200 meters away and let the artillery fire again.
The gunsmiths felt somewhat confident this time. They adjusted the angle and fired again.
This time the shell did not miss the mark, only a loud noise was heard as the shell hit the large iron plate. A large hole was punched out in the upper left corner of the half-inch thick iron plate. After the shell penetrated the iron plate, it bounced several times.
After rushing forward for several hundred meters, he broke a tree on his way and then stopped his momentum.
Li Zhi took a closer look and saw that the hole in the iron plate was five or six inches wide. The iron plate at the hole was rolled back, which looked very shocking.
This cannon is so powerful that even if a tank comes to attack the city, it can smash the tank into pieces with one shot.
Li Zhi asked the gunsmiths to start casting eighteen standard long cannons immediately, sixteen of which were placed on the fort, and two were spared.
