In fact, in Lin Pingan's concept, the sheepskin used to make hot air balloons should be thin and tough, but he did not consider that in this era, the production of this kind of sheepskin is very cumbersome and most importantly expensive.
So when Liu Yiyi placed the hot air balloon drawings drawn by Lin Pingan in front of Liu Chengzhi, Liu Chengzhi was stunned.
He couldn't help but take a breath of cold air and cursed directly in his mouth:
"Grandma, why are you trying to help? This guy is just robbing!"
Liu Yiyi opened her big eyes and asked curiously:
"Dad, does this cost a lot of money?"
Liu Chengzhi grimaced and uttered a sentence with difficulty:
"I guess it can't be done without tens of thousands of taels of silver."
At this moment, Liu Yiyi's little cherry mouth suddenly opened wide, her eyes widened, and she murmured:
"But Dean Xiaolin said this is a small thing and won't cost a few dollars."
Silly girl, your brain is probably sold by that kid, and you still have to count the money for him... Looking at his daughter's appearance, Liu Chengzhi let out a series of hehes, even though he got the money. Come out, but it is not a small amount after all. The relationship between my daughter and that boy is not clear, which is really painful!
Things have come to this, and we can't give up halfway. If it really doesn't work out, not to mention Liu Yiyi will become a joke in the academy, and there will be no place for Liu Chengzhi's old face!
"It seems that girls who are outgoing will have to pay for it."
He sighed inwardly, waved his hand to the housekeeper, and gave the order.
Lin Ping'an naturally didn't know that during the conversation between Liu Yiyi and his daughter, the production of the balloon had been solved, and the next thing to be solved was the combustion system.
In fact, this is not difficult. If you want to use a simple version, then use an extra-large iron pot, put wood in it, and burn it directly. The heat generated will naturally carry the balloon to the sky.
It's just that this is a bit too rough and not safe enough.
If the fire is too strong when flying in the air and encounters strong winds, directly burning the hanging rattan, it will be over.
Or if it rains or other reasons cause the flame to go out, then he will definitely fall from the sky and become a meat dumpling.
Therefore, for the sake of safety, Lin Ping'an designed a closed combustion furnace with an air inlet below to ensure the oxygen required for combustion, and an air outlet above to direct the heat flow directly to the balloon.
When taking off, open all the air inlets. When you want to land, you can gradually close the air inlets through the pull rod to reduce oxygen entering the combustion furnace, so that the entire hot air balloon can slowly land to the ground.
As for fuel, in this era, only coal and wood can be used.
Lin Pingan drew all these things on paper. Now he has to go to Fenglei Pavilion to ask Lei Zhen for help. An ordinary craftsman may not be able to meet his requirements.
In Fenglei Pavilion, Lei Zhen carefully read all the drawings one by one, then raised his head, patted his chest, and said proudly:
"No problem, I promise to get these things done within ten days."
Lin Ping'an nodded and immediately felt relieved. The core components of the hot air balloon were here. If Lei Zhen said there was no problem, then the hot air balloon would basically be successful.
All that was left was to hang a hanging basket for carrying people under the burning furnace. According to Daming's current level of craftsmanship, such a hanging basket was not difficult, so at Su Meier's initiative, he hung the hanging basket again. The making of the basket was handed over to Su Meier.
After listening to Lin Ping'an's arrangement, Jiang Xingzhou and the other two fell into silence.
"The co-author academy made this hot air balloon without spending half a tael of silver. The dean is really terrifying!"
The admiration for Lin Pingan in their hearts suddenly deepened.
"After the fifteenth day, I will personally demonstrate the hot air balloon carrying people into the sky. Then you can watch it."
Lin Pingan said confidently to the four of them, with a little excitement in his heart.
.
Liu Chengzhi was very capable, and his position as Minister of the Ministry of Justice was not free. He quickly bought the light, thin, and tough sheepskin, and also hired a group of craftsmen who specialized in sewing sheepskin, working overtime. Make it quickly.
Liu Yiyi wanted to sew with her own hands several times, but there was really no way. Her small hands could handle the embroidery needle, but it would be a bit difficult to use such a large needle, which is specialized in sewing sheepskin.
So she could only watch the whole process, filled with anticipation.
At the same time, the back garden of Su Liangyong's house, the Minister of Household Affairs, was also a lively scene at the moment.
The hanging basket designed by Lin Ping'an is very large. It can even accommodate an Eight Immortals table, let alone a few people.
When Su Liangyong saw the drawing for the first time, his reaction was exactly the same as Liu Chengzhi's.
At that time, his eyes were widened, his mouth sucked in cold air, and his teeth hurt.
But there was nothing he could do. He was the Minister of Household Affairs, and he had to save face, so he could only grit his teeth and order the housekeeper to handle the whole process. This extra-large hanging basket must be produced within fifteen days.
So Su Meier supervised the whole process and felt very happy because she finally found something that could equal Liu Yiyi.
Not surprisingly, the news that Lin Ping'an would personally demonstrate a manned flight of a hot air balloon in the fifteenth day spread instantly throughout Kyoto, and everyone was eagerly awaiting the arrival of this day.
In Kunning Palace, Zhu Youxiao was very excited. He was pacing back and forth like a child in front of Zhang Yan, and kept mumbling to himself:
"Good boy, you can think of this thing, but why do you use a bamboo basket? That thing is so tasteless. You should at least ask me to build you an octagonal Feixian Pavilion!"
At this moment, he was like a raging lion, complaining in his heart that Lin Ping'an didn't let him participate in the production of this novel thing.
Zhang Yan's eyebrows were picturesque, and a smile appeared on her elegant and elegant face. She glanced at Zhu Youxiao who was walking back and forth, and said softly:
"He is just doing a test flight this time. When the thing is really successful, Your Majesty can build a Flying Immortal Pavilion with your own hands. I will accompany you to fly into the sky and overlook the entire Kyoto."
Upon hearing this, Zhu Youxiao was immediately happy. He took Zhang Yan's hand, looked at that beautiful face, and said with a smile:
"I would like to put another bed up there. What does the queen think?"
Zhang Yan's pretty face turned red immediately, she was so beautiful that she looked around anxiously, stamped her feet and said coquettishly:
"Your Majesty, what are you talking about?"
Zhu Youxiao laughed loudly and seemed to think this was a very interesting thing. He nodded frequently and said:
"Yes, it's settled!"
.
Suning Mansion!
Wei Zhongxian anxiously walked back and forth in the living room like an ant on a hot pot, the wrinkles on his face bunched up like dried orange peels.
He had not slept well for several days. Sun Chengzong asked for money again, this time it was a full five hundred thousand taels.
He believed in Sun Chengzong's character, and even more believed that the other party would not personally send people to his house unless it was absolutely necessary.
The Ministry of Revenue can only provide 200,000 taels, not even one tael more!
Such a big gap really made him a little embarrassed.
Since its implementation, the industrial and commercial tax has indeed brought a lot of revenue to the court, but for the entire Ming Dynasty, it can only be a drop in the bucket.
And during the entire implementation process, it was naturally met with collective resistance from the Jiangnan nobles. Wei Zhongxian even used Jin Yiwei and adopted bloody methods to reluctantly implement it.
It is said that distant water cannot quench near thirst, and Daming's frail body cannot recover in a very short period of time.
For a country, five hundred thousand taels of silver is nothing, but for this country at this moment, it is a big problem.
"Old Man Sun, Old Man Sun, you are trying to skin our family!"
Wei Zhongxian murmured in his mouth that the last time Sun Chengzong took 500,000 taels of silver with him when he went to Liaodong, the Ministry of Household Affairs only took out 300,000, and the remaining 200,000 was borne by Wei Zhongxian. Could it be that we still count on him to solve it this time?
Wei Zhongxian shook his head. Although he was nine thousand years old, he didn't have that much money!
"what to do?"
He asked himself again in his mind, his eyes suddenly lit up, and he shouted in his mind:
"Yes, how could I forget this kid?"
Thinking of this, he hurriedly walked out of Suning Mansion and went straight to Lin Ping'an's other courtyard.