Chapter 790 This is black technology [please vote]
"Han Shu·Lü Li Zhi" talks about length: "Measuring refers to minutes, inches, feet, zhang, and yin, so lengths are also measured. ... One is a minute, ten is an inch, and ten inches is a ruler. Ten feet is a zhang, ten feet is a guide, and it is judged five times.”
The five units of length mentioned here are minutes, inches, feet, feet, and inches, but there is no length...
Of course, there is no mention of the length of the inside, not because there is no length of the inside, but due to a lack of records for various reasons.
"Han Shu·Shi Huo Zhi 1" says: "The way to manage the people is based on the land. Therefore, we must build steps and acres to straighten the boundaries. Six feet is a step, a hundred steps is an acres, and a hundred acres is a husband, and a husband is The third is the house, the third is the liter, and the well is one mile long, which is the nine husbands.”
It can be seen from this record that the well is one mile long, and the nine hundred acres of cultivated land cultivated by Jiu Fu are one mile and three hundred paces long on each side. One step is six feet, so three hundred steps per mile is 1,800 feet.
After the Tang Dynasty, the construction ruler used by the Ministry of Industry in successive dynasties was also called the Ministry Ruler. It was also commonly known as the Luban Ruler, also called the Big Ruler. An important feature of this ruler is that one step is five feet. The length of a foot is 1.25 feet of the Qin ruler. It is recorded in "Weights and Measures" in the volume of "Tongkao of Xuwenwen": "The business ruler is the curved ruler used by carpenters today. It was passed from Lu Ban to the Tang Dynasty, and the Tang people called it the big ruler. From the Tang Dynasty to the present, it is called the Jin ruler, and The famous craftsman’s ruler is the so-called lathe ruler in ancient times.”
Because the construction ruler is the standard used by the Ministry of Industry in the past dynasties, it has strong credibility and is widely used. With the development of society, it is a reasonable choice to calculate the length of the building ruler.
When weights and measures were re-established, the mile system was clearly stipulated as: "Five feet is one step, two steps is one zhang, ten feet is one foot, and eighteen feet is one mile." That was already during the Guangxu period of the Qing Dynasty...< br>
The lack of unified, standardized, scientific and reasonable weights and measures is a major drawback that restricts the development of industry and natural science. Fang Jun once proposed a "world standard" for the Ministry of Industry, but this idea died when he left the Ministry of Industry.
However, it seems that this idea must be put on the agenda, otherwise Fang Jun will be confused by the length of just one "mile", and he still doesn't understand it...
Su Dingfang was speechless and said: "How can you run so fast?"
Liang Renfang had obviously heard of Su Dingfang and admired the general who swept through Mobei, so he said respectfully: "Captain Su doesn't know something. The greatest advantage of this ship is not its speed, but its sail! This complete set of sailing equipment was designed by the Grand Steward and is simply ingenious. With this kind of sail, you can sail regardless of the wind or the wind! ”
Fang Jun smiled and said nothing. This actually had nothing to do with sails. It was just a simple aerodynamic principle. But it was such a simple principle of "as the fluid speed increases, the pressure will decrease" that he explained to Liang Renfang. After being unable to explain it for a long time, Fang Jun, who finally gave up on "popularizing science", simply gave the order - you don't need to know why, just do it!
Simple and crude, but very useful.
Liu Renyuan on the side widened his eyes and said in disbelief: "Don't pull it off, your trousers will be wet even if you pee in the wind. Wouldn't the boat be blown back when it is facing the wind?"
In his understanding, ships sailing on the sea mainly rely on sails. The wind blows on the sails to bring power and push the ship forward. But if you are facing the wind, the force is in the opposite direction. How can you move forward?
Liang Renfang was polite to Su Dingfang because Su Dingfang was the general who broke through the Turks' tent. Although the lord did not show his high position, his achievements were there, so he was not so polite to Liu Renyuan.
Who is this tall and thick guy? Never seen...
Therefore, Liang Renfang said unceremoniously: "Everything in the world has its own truth, so we must study things to gain knowledge. Gravel can be turned into crystal clear glass, ores can be turned into sharp and tough weapons, water can be turned into ice, and clouds can be melted Rain, why can’t ships sail against the wind? ”
"This..." Liu Renyuan was so choked that he rolled his eyes, but he couldn't think of a word to refute.
Fang Jun pointed to the sailboat in the dock and said, "Why argue? The boat is right there. Let's take it out for a walk. Then the truth will be revealed. But since Lieutenant Liu doesn't believe it, but Chief Liang swears by it, neither of them is convinced. How about making a bet?”
This is a black technology, and I will definitely hack Liu Renyuan today.
Su Dingfang nodded immediately: "That's okay."
Those who watch the excitement are naturally not afraid of big trouble...
Pei Xingjian laughed and said: "Betting hurts feelings and is a bit vulgar. How about we bet on a roasted whole lamb. Whoever loses will be responsible for setting up a barbecue tonight, and the rest of the people will sit back and enjoy the profits, drink and have a party. How about it?"
Liu Rengui said expressionlessly: "I agree."
Liu Renyuan glared and said displeased: "Why do you predict that someone will lose? You still don't believe it. If the sailboat can move forward against the wind, it is better to say that the river flows backwards and the sun rises in the west. Just bet!"
Fang Jun smiled and asked Liang Renfang: "What do you think, Master Liang?"
Nonsense, Liang Renfang would refuse something that was obviously a sure win?
So Liang Renfang put on an old face that was three points darker than Fang Jun's and stretched out his stubby fingers covered with calluses: "I need to bake two of them."
Liu Renyuan was so angry that he shouted: "Old man, don't be arrogant. If you can really sail against the wind, then our Royal Navy will be invincible on the sea with such a magical weapon. What if I roast sheep for you for the rest of your life? Hugh? If you want to show off your words here, quickly board the ship and raise the sail, the winner or loser will be judged! ”
After hearing this, Liang Ren just changed his disdain for Liu Renyuan, extended his thumbs up and praised: "He is indeed a hero in the army. In order to have a sharp artifact in the army, he will be invincible on the battlefield, no matter any punishment." They all bear it willingly and are worthy of being called soldiers of the Tang Dynasty. Regardless of victory or defeat tonight, please have three drinks with me!”
Previously, Liang Renfang blamed Liu Renyuan for questioning his words, so he thought Liu Renyuan was vulgar and rude. Now that he saw that the other party was indeed devoted to the navy, his opinion was immediately changed.
Liu Renyuan laughed and said: "Even so, we will never get drunk! Hahaha, when it comes to drinking, who are you afraid of?" However, when he glanced sideways, he saw the half-smiling expression of Fang Jun next to him, as well as Su Dingfang, Liu Rengui, Pei Xingjian, Xi Jun had a look of disgust on his face, he coughed dryly, and said with a blush: "Well, of course the chief manager doesn't count. He is a marquis and the coach. It would be inappropriate for us to drink with him, right?"
Several comrades in arms all made a gesture to Liu Renyuan that they had learned from Fang Jun not long ago - they raised their middle fingers in unison, expressing their disdain for Liu Renyuan's shamelessness.
Liu Renyuan blushed and said angrily: "What are you looking at me with such strange eyes? Yes, my drinking capacity is far inferior to that of the chief steward, but what does that have to do with you? Are you not convinced? If you are not convinced, I will fight you." Let them all go!”
He spoke arrogantly, but in his heart he secretly regretted that he had said the wrong thing.
He prides himself on being an amazing drinker. He was knocked to the ground by Fang Jun not long ago. He drank so much that he became confused and confused. From then on, he no longer dared to brag about his drinking capacity in front of Fang Jun...
This black boy butler is really good at drinking!
Thinking about Fang Jun's drinking capacity, Liu Renyuan's heart trembled...
No one paid him any attention, and they all ran down the mountain ridge quickly and walked directly into the dock.
The four sailboats are all of the same model, about forty meters long and thirteen to fourteen meters wide. The length of the keel is three times the width of the ship.
Several people boarded the deck and looked around.
The sailors on the ship were all shipbuilders. When they saw Liang Renfang leading a group of officers on board, they all came out to see him.
At this time, a white-haired old man strolled out of the cabin. As soon as he saw Fang Jun, he immediately said "Ouch", bowed slightly and saluted, and said with a smile: "Mr. Fang... look at me, this old fool." , now I have to call the General Manager. I am old and see the General Manager. I haven’t seen him for a long time. The General Manager is more elegant than before. He is walking like a dragon and walking like a tiger, and he is full of energy.”
It turned out to be Zheng Kunchang, the former head of the Water Department of the Ministry of Industry...
Why is this old man here?
Fang Jun quickly took two steps forward, helped Zheng Kunchang up and said, "Why are you here too? Aren't you hurting me? You are an old man. If one day you are confessed in Huating Town, your children and grandchildren will come." If you ask me to compensate you, I will go bankrupt..."
Zheng Kunchang laughed loudly and said: "The General Manager is the famous God of Wealth in the Tang Dynasty. How many copper coins is this old man worth? This is our last effort to help our children and grandchildren, and we are extorting a few coins from you to give them." Enjoy it!”(End of Chapter)