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Free Web Novel,Novel online - All in hlnovel.com -> Historic -> Xiao Ge Lao Chapter 370 The first human flight
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- ????????????????????????????????????????????: The branches are blooming everywhere, and there are piles of beautiful brocade.
In Yuyuantan, tens of thousands of cherry blossom trees are in full bloom, looking like a sea of ??pink.
When the breeze blows, countless petals fall down one after another, like a rain of flowers.
However, no one had the intention to take a look at the stunning and beautiful cherry blossoms. Their eyes were completely attracted by the huge colorful ball.
¡°Wow, it¡¯s so big!¡±
"So beautiful!"
"Am I dreaming?"
The girls also forgot about their image and screamed excitedly on the carriage.
"Nothing else is needed, just this beautiful big colorful ball will completely conquer their hearts."
The boys were even more excited and yelled, riding their horses and rushing to the colored ball.
When they came closer, everyone looked up at the huge ball covered with silk and satin, and they all opened their mouths and were speechless.
Words cannot express their shock at this moment.
After a long while, Liu Side finally uttered a curse word:
"Big, so damn big"
Many people looked at Zhao Hao and became convinced.
?????????????????????????????????????????????????????????????????? Just to come up with such a super big thing is not something that ordinary people can do.
Actually, Zhao Hao was also shocked.
Although it was designed and manufactured under his own hands, Zhao Hao was also deeply shocked when a hot air balloon with a diameter of nearly three feet actually appeared in front of his eyes.
The disciples had already been busy at the scene. When they saw Master coming with the audience, they quickly put down their work and came to welcome him.
In fact, most of them only came to help today.
The real heroes who created this behemoth are Zhang Jian and Zhao Shizhen.
This thing took them two full hours of effort.
At the Lantern Festival temple fair more than two months ago, Mr. Zhao used an exaggerated performance to prevent the adultery between his father and the eldest princess from being exposed in public.
Later, in order to smooth things over, he made a bet with a group of bachelors and ladies to carry a manned Kongming Lantern.
After returning home, he used some time before seclusion to draw a sketch of the hot air balloon and threw it to the two talented engineers.
Of course, Mr. Zhao will not admit that he is making a childish bet, but declares that this is a great and epoch-making scientific experiment - it will be the first time in human history that a person will be sent into the sky!
So, no matter how good the concept is, it all depends on the packaging. Zhao Shizhen and Zhang Jian were fired up as soon as they heard it.
What a dreamy scene this is. Who has never dreamed of flying into the sky?
Letting humans soar in the sky like birds is definitely a temptation that all engineers cannot resist!
So the two put down all the work at hand and went all out to conduct hot air balloon experiments.
First, they placed a silk bag on the burning charcoal basin, and sure enough, they saw the bag gradually filling up in the heat, and floating in mid-air without any help from anyone.
This shows that the scientific principle taught by Master is correct - the density of hot air is smaller than that of cold air, so the same volume of hot air is lighter than cold air and creates buoyancy. As a result, the hot air will rise above the cold air!
Of course, the two handicraft maniacs have made countless Kongming lanterns since they were young. In fact, they have been vaguely aware of this for a long time.
It¡¯s just that when they understand the scientific principles involved, they know what to do.
Make it bigger, bigger. As long as it is big enough, an elephant can send you to the sky!
They continued to increase the size of the hot air balloon according to the formula taught by their master. From design to model, then miniaturization test flight, animal test flight, step by step to today, each step has gone through rigorous demonstration and review, and only then did we have this super large aircraft with bamboo strips as the keel and double-layer satin as the skin. hot air balloon.
The fly in the ointment is that the hot air balloon itself cannot provide heat and relies on an external fire source to generate updrafts.
This is because the two people discovered during the experiment that if the master's original design-a brazier mixed with pine and animal fat was suspended above the hanging basket, it would easily cause a fire.
After all, the entire hot air balloon is made of flammable materials. When encountering turbulence in the airflow, just a little spillage of a basin full of flaming grease is enough to turn the balloon into a fireball.
On this point, the two have some differences of opinion.
One person thinks that success is the most important thing in experiments. But the other one is absolutely unacceptable, an experiment that will kill people.
So he went into retreat for the second time in Zhao Hao.??, the two asked Zhao Hao for instructions on this issue.
Zhao Hao naturally cannot let his performance appear dangerous, and it is unrealistic to produce water and gas refill bottles in a short time.
It seems that the road still has to be walked step by step, without skipping a step.
He had no choice but to modify the design drawing, canceling the internal fire source, changing the hanging basket into a hollow ring shape, and redesigning it according to the appearance of the first manned hot air balloon in human history.
That¡¯s what everyone sees now.
??~~
"Can such a big thing take off?"
Although they were shocked, few people believed that such a huge thing could fly into the sky.
After all, the rattan hanging basket itself weighs one or two hundred kilograms, right? Coupled with the keel and silk skin, three to four hundred kilograms is definitely possible.
"A person weighing a hundred pounds or so can't fly. How can something weighing three to four hundred pounds reach the sky?"
"Hey, Brother Zhao Xian, I'm not criticizing you." Xu Yuanchun shook his head and sighed: "It is really a waste of people and money, and it is too big and unnecessary."
"This is the dream of all mankind, and it is appropriate to spend a little money." Zhao Hao smiled lightly.
"That's right, I, Brother Zhao, make my own money and can spend it however I want."
Li Mingyue jumped off the carriage, ran to the shelf, looked at the hot air balloon in dazzling amazement and said, "Can it really fly?"
"Of course." Zhao Hao pointed to the rattan hanging basket and said, "Two people can sit on it. Who dares to ride with me?"
"Me, me!" Li Mingyue immediately volunteered.
Seeing that she was getting carried away with herself, Zhang Xiaojing quickly reminded her in a low voice: "Lady, lady"
It was only then that Li Mingyue remembered her character, and quickly returned to her ladylike appearance. She lowered her head and muttered: "I don't dare."
The disciples had already received the order, and they all acted as tools without saying a word.
Xu Yuanchun and others were intimidated and did not dare to risk their own lives.
Qiaoqiao is afraid of heights, but Ma Xianglan is eager to try it, but as a secretary, she will not steal the limelight at this time.
????????????????????????????????????????????????????? When no one else dares, this secretary will risk her life to accompany the young master again
Zhang Xiaojing licked her lips a few times, looked at Li Mingyue, and finally held back.
"Then let me give it a try?" The young prince was happy to see Liexin. Although he was a little apprehensive, based on his understanding of Zhao Hao. Since the other party dares to say this, it should be safe.
Before he finished speaking, he felt a sinister gaze cast from the side.
You don¡¯t need to look at it to know that it¡¯s my sister who is exerting her power.
Li Chengen said with a bitter look on his face: "I'm too heavy, so let's let Mingyue and brother go together, she's light."
"Brother said so." Li Mingyue smiled in her heart, walked to Zhao Hao and said: "Then I will give it a try"
"Are you not afraid anymore?" Zhao Hao reminded with a smile: "It can fly very high, it is quite scary."
Li Mingyue is afraid that she won¡¯t be able to fly high. The higher she is, the happier she will be!
"As big brother is here, don't be afraid." Li Mingyue mustered up her courage and looked up at Zhao Hao.
"Okay, let's go up." Zhao Hao took the lead in climbing the bamboo ladder and entering the hanging basket.
Then he reached out and pulled Li Mingyue, who had climbed up, into the hanging basket.
The disciples lit the fuel pile under the bamboo frame, and the flames burned brightly, pouring hot gas down the chimney and into the balloon continuously.
As the balloon continues to inflate, the upward buoyancy becomes greater and greater, pulling all four tethering ropes straight and tight.
Zhang Jian, who had been paying close attention to the inflation process, shouted: "Cut!"
The four senior brothers swung their axes at the same time and cut off all the mooring ropes.
The big balloon filled with hot air slowly took the two people into the sky amidst everyone's exclamations.
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