An afternoon has passed, Zheng Chengxiu skillfully made more than a dozen hot air balloons, if it weren't for the lack of raw materials, it is estimated that he would still be able to stay up late to catch up with work.

In accordance with the principle of splitting accounts in five or five, Director Kuang Ye gave Brother Ha 30% of the design cost and Zheng Chengxiu 20% of the production and guidance costs, and Zheng Chengxiu was so happy that he couldn't find the north.

"Xiao Zheng, what are you going to do when you have the money?" Brother Ha looked at Zheng Chengxiu and asked casually.

"Of course it's chic" Zheng Chengxiu said as a matter of course: "I want to buy a luxury car, a horse, a bodyguard, and a bunch of beautiful clothes for the goddess......"

Brother Ha interrupted Zheng Chengxiu and asked tentatively, "Is this the first money you made?" ”

"Hmm" Zheng Chengxiu nodded, he used to ask his family for money, but this is really the first time he has made money.

Brother Ha thought for a while, and said quietly: "If I make the first money, I must give it to the family first, but it's a pity that Daha's mother is no longer there." ”

Zheng Chengxiu was stunned, and then instantly realized that he only cared about personal enjoyment and forgot about his family, which really shouldn't be.

"Master, I understand" Zheng Chengxiu bowed deeply directly to Brother Ha, and then turned to leave.

The three brothers of the Bai family blinked their eyes, looked at Brother Ha with some astonishment, and asked incomprehensibly, "Master, what did Zheng Chengxiu do?" ”

"Hehe" Brother Ha shook his head with a smile and said inexplicably: "Learn to be a man." ”

"Learn to be a man?!" The three brothers of the Bai family are completely confused, do they still need to learn to be human? Aren't we born human?

Ha Ge smiled and said nothing, of course you need to learn to be a human being, otherwise you will easily become an animal if you are alive. No one is born a good person, and no one is born full of evil, and everyone needs a correct guide to avoid going down the wrong path.

The three brothers of the Bai family can't understand it now, but they will soon know what should be done in life and what cannot be done in life, people never live only for themselves, and those who care about themselves and those who care about themselves.

At dinner, Jiang Jia'an came over, and he first praised Brother Ha for getting an invention so quickly, and secondly, he also discussed the role of hot air balloons, and finally said the real purpose.

"Disciple Sun, I think this hot air balloon can be transported by air, if this kind of thing is equipped with various armies, can it greatly reduce the pressure on logistics?" Jiang Jia'an said with a serious face.

"No" Ha Ge shook his head and said frankly: "Hot air balloons can only move with the wind, and the carrying capacity is limited, so it is not suitable for large-scale material transportation. ”

Jiang Jia'an did not dare to agree: "The hot air balloon moves with the wind, then we will find a group of wind attribute monks to manipulate the wind direction, the carrying capacity of the hot air balloon is limited, then build a batch of larger ones with strong carrying capacity." ”

"That's it" Brother Ha was stunned, in this world, the experience of the previous life has more possibilities, for example, the aircraft in the previous life could not control the direction of the wind, so most of them were installed with devices with propulsion and control of the flight state, but in this world, there are wind attribute monks.

"How?" Jiang Jia'an asked tentatively, because he was a novice in the hot air balloon, so it was best to ask Brother Ha's opinion.

"It's not proper, it's not proper" Brother Ha still shook his head, and said in thought: "A wind attribute monk can manipulate the direction of the wind, but there is a time limit, and they can't transport it long distances at all." ”

"Hiss" Jiang Jia'an woke up in an instant, if he was engaged in transportation, he was all some low-level personnel who were not strong in combat power, even if they had wind attributes, it was estimated that they would not last long, and they would reach the sky for dozens of miles.

Jiang Jia'an's brows furrowed, if the problem of power source cannot be solved, the transportation of hot air balloons is estimated to be a fantasy, and it cannot be put into practice at all.

"Master, in fact, there is a way" Brother Ha recalled and said very seriously.

"Oh" Jiang Jia'an will be suspicious, he has only seen a hot air balloon for so many years, a device that can go to the sky, what else can he do?

"An airship, a lighter-than-air flying machine, it has a power source, it can be transported over long distances, and it doesn't even need a wind-type monk," Hago said with certainty.

"Really?" Jiang Jia'an couldn't think of this structure for a while, but since Brother Ha said it, there should be nothing wrong.

Hago nodded, and then quickly drew the structural diagram of the airship on the paper, airbags, auxiliary airbags, pods, propulsion devices......

Jiang Jia'an didn't know much about it, but his intuition told him that this airship should be able to adapt to long-distance transportation, but the only problem was how to get the lighter-than-air gas.

Brother Ha saw Jiang Jia'an's doubts, and smiled confidently: "Master, don't worry, give me a few thunder attribute monks, I can use water to make hydrogen, and that thing can rush into the air bag, it's very simple." ”

"Huh?!" Jiang Jia'an was confused, what is hydrogen? Why can it burst into an airbag? What is this? Can a Thunder Monk make hydrogen?

Brother Ha didn't continue to explain, anyway, there was no evidence, and the explanation was useless, so it was better to make the finished product, so that everyone would know the scene.

Jiang Jia'an was still a little worried: "Apprentice grandson, is the airship you said really that simple?" ”

"There really is" Brother Ha said confidently, although the production of oxygen by electrolysis of water in the previous life could produce extremely high purity hydrogen, but the cost was too large, so it was not popular, but in this world, there is no such concern, because there are thunder attribute monks, they can continuously produce hydrogen.

"Okay" Jiang Jia'an nodded helplessly, this is too embarrassing. The simpler Brother Ha said, the more sad Jiang Jia'an's heart became, why is he, a teacher, not as smart as a dog's head?

However, Hago is not aware of this stubble, and he is still immersed in the design of the airship.

You know, if the airship is filled with hydrogen, it can stay in the air for a long time, and with the power source of the propulsion unit, it can sail freely.

Moreover, compared to hot air balloons, airships are not easy to imitate, at least Ha Ge does not announce the production method of hydrogen, and the world doesn't even know what hydrogen is.

When the time comes, the military transportation of airships is one thing, and civilian transportation is also one thing, and the market potential is huge.

After all, for this newly invented thing, Ha Ge has full personnel rights.

Haha, a dog has attained the Tao, and everyone ascends to heaven, and I am a big brother.