Buzz…
Hearing the weight of the hemp rope reported by Wang Chengen, Chongzhen's head buzzed instantly.
Based on a 450-meter safety rope, the weight of the rope alone is 450 kilograms. What’s the point?
Before crossing, I had ridden in a few hot air balloons in the scenic area. I heard from the staff that the hot air balloons in the scenic area can bear about 300 kilograms, and the military ones can bear about 600 kilograms.
But those are high-tech products from later generations. Balloons and burners are not comparable to today's simple conditions...
"Damn, you really don't need to use your brain to read those time-travel novels, it's just fun..."
After a while, Chongzhen complained in his heart.
Then he threw the pen aside. This was the first time he wanted to make something shocking with his own hands, but the result was aborted, which made him very hurt.
Wang Chengen on the side was a little confused. He didn't know what was wrong with his prince. He was so ambitious just now. Why did he become discouraged as soon as he heard his report?
He is also a smart person. After thinking about it carefully, he knew that it must be caused by the hemp rope, bamboo basket, etc. he just reported, and it must be related to the weight.
So after secretly looking at the emperor's face, he gently placed the brush on the pen holder and said cautiously: "Your Majesty, one person can gauge the shortcomings, and two people can gauge the strengths. It is easy to discuss things with three people.
If these materials don't work, then call together skilled craftsmen to come up with a solution. Our Ming Dynasty is rich in resources and has many strange people, so maybe we can solve it. "
Huh……
Listening to Wang Chengen's consolation, Chongzhen chuckled: "Daban, what you said is very good!"
"I feel that what your Majesty just said to Mr. Yuan Ge and the others is right. The research from generation to generation will eventually be realized. If you just want to stop doing it, it will never be realized."
"Hahaha, you are serious!"
"This slave has been following the emperor for so long. No matter how stupid he is, he has been enlightened by the influence of dragon energy!"
After listening to his big companion's flattery, Chongzhen chuckled lightly, picked up the teacup and drank the tea in one gulp. He suddenly felt heroic and washed away the decadent energy just now.
"My dear friend, please arrange for someone to go to the Ministry of Industry to screen all kinds of ropes, fabrics, etc. according to the requirements I just gave you, and give me the results."
"Your Majesty, I will leave this matter to you, I will go and watch it myself!"
Wang Chengen's face became serious, and then he said: "Your Majesty, the craftsmen from the Banking Supervisor, Dyeing and Weaving Bureau, and Needlework Bureau are waiting outside Qianqing Palace."
"Well, the craftsman from the silver supervisor comes in. Let the other two go back first. I think this is too simple. I will find them when I am ready."
After half a stick of incense, the craftsman from Yin Zuo Supervisor entered the Dongnuan Pavilion tremblingly. Chongzhen handed over the drawing. The middle-aged craftsman looked at the drawing with a confused look on his face. He really couldn't understand the curved lines.
Chongzhen opened his mouth, but he really didn't know how to explain it. He didn't know some professional terms, and it would be more troublesome to explain it once he knew it.
After thinking about it, he took a candle, and then took a knife and slowly moved it. As the knife moved, candle crumbs flew into the air.
In just a few seconds, a rifling with a length of ten centimeters appeared on the candle that was about a foot long.
Chongzhen handed the candle over: "Just follow my demonstration just now and find a kind of material to carve. Let's carve six candles first..."
For a full quarter of an hour, Chongzhen explained the Yin line, Yang line, width, winding distance, etc.
Although it was the first time for the middle-aged craftsman to come into contact with the emperor, and although he did not know what the emperor wanted to do, he could still do it with his rich experience.
Chongzhen had no doubts about the ability of craftsmen. A craftsman who could make jewelry for the royal family would definitely have excellent craftsmanship, and there would be no problem making a model.
If there are any problems in the future, they can only be studied by the Firearms Research Institute. He really doesn’t know the rest.
After the craftsman who was the bank supervisor left, Chongzhen moved around for a while. After resting for a while, he returned to the dragon case and looked at the drawings with a pen: "Everything can be calculated. I don't believe it. I can't handle this hot air balloon."
Lines of data and strange characters are displayed on the paper.
The rice paper was changed one after another... Without a calculator, he could only calculate the cube root again and again, which made Chongzhen feel dizzy.
It took a full hour, when Chongzhen's wrists were sore, to finally get the result.
If the weight of the hot air balloon balloon and bamboo basket is 400 kilograms, and if the weight of the burner, fuel, soldier weight and twenty thunderbolts is 600 kilograms, then the radius of the balloon is three meters and three meters.
If the weight of the safety rope is added, the radius of the balloon is 4.8 meters, which is larger than a house.
In addition to these two, he also calculated from the weight of one hundred kilograms to five hundred kilograms, and every fifty kilograms was divided into ten or twenty pieces of rice paper.
"Good guy, it's really not easy..."
Chongzhen picked up the tea cup and drank water while admiring his masterpiece. He was very satisfied. This proved that his nine years of compulsory education had not been returned to the teacher. He also thanked the country for its compulsory education. Otherwise, he could only practice a little bit. .
Now, in addition to waiting for the data from Wang Chengen, Chongzhen also needs to get the burner of the hot air balloon, which is the key to determining whether the hot air balloon can fly.
After thinking for a while, Chongzhen stood up and searched on the bookshelf on the side. After a while, he took out a memorial.
"Daming Stone Lipid Distribution and Output Statistics"
This is the name of the memorial, and the person signing it is Yuan Keli.
This memorial was written when the sergeants burned corpses with stone grease during the Battle of Longjingguan last year. Chongzhen suddenly thought that this stuff would be the oil of later generations.
After returning to Beijing, Yuan Keli wrote such a memorial after making statistics. He was too busy at the time and had no place available, so he didn't pay much attention to it. Now it is time to develop it.
Because this is the best fuel for hot air balloon burners under today's conditions, bar none.
Opening the memorial, Chongzhen slowly read through it again. This memorial started from the records of oil and ended with the application of oil in the Ming Dynasty.
Li Daoyuan of the Northern Wei Dynasty, in "Shui Jing Zhu", called petroleum "water has fat, like meat juice, and burns extremely brightly."
During the Song and Yuan Dynasties, people's exploitation of this substance changed from open-pit oil extraction to deep-dig mining, and stone candles, solid-state lighting products made from petroleum as raw materials, appeared.
During the Ming Dynasty, oil was exploited on a large scale in Gongchang Prefecture of Shaanxi (Gansu) and Sichuan. Local residents used it for lighting and even installed it in bamboo tubes as lanterns for traveling at night.
It is also used as axle lubricant and as a preservative for some appliances. Asphalt is also used to repair cracks in buckets and wine tanks.
Such as fuel for boiling salt, making ink ingots, removing parasites from livestock such as cattle, horses and sheep, and used as medicine to treat skin diseases such as scabies, cold and heat, convulsions, vomiting and other symptoms in children.
These Chongzhen just looked at it briefly, and then fixed their eyes on a page in the memorial, which was a strange pattern.
