Datang: God-level Choice

"Congratulations to the host, you have successfully completed the god-level selection task!"

"The host's choice is to insist on carrying out the imperial examination reform, the reform effect is judged to be perfect, and the reward will be two god-level gift packages!"

"Congratulations to the host, you have successfully obtained the first-class hot air balloon making technology!"

"Relationship host, successfully obtained special steel"

There was a hint of surprise on Qin Huaidao's face.

The principle of the god-level hot air balloon technology is actually very simple. It is actually the same as the Kongming lanterns that were often released during the festivals of the Tang Dynasty. The air is heated by the cupping to make the air lighter and reach the large airbag opening above, so as to achieve a rising air. Effect

Qin Huaidao asked the Academy of Military Sciences to start researching, but with Datang's current technology, it is definitely not an easy task to come up with an airbag with excellent airtightness and fire resistance.

The airtightness is not good, it is easy to leak, and it can't fly at all

The fire prevention is a little bit worse. Once there is a strong wind and an accident occurs, the hot air balloon will turn into a super big fireball. It is self-evident that the pilot above will end up.

Moreover, this kind of hot air balloon is very troublesome to operate horizontally. It can only travel with the wind, and follow the wind in different directions through the change of height.

The god-level hot air balloon technology rewarded by the system not only provides a solution to the airbag airtightness and waterproofing problems with Datang’s current technology after system optimization, but also provides a training manual for hot air balloon operators, as well as a training manual for hot air balloon operators. How to make a small wind speed and wind direction measuring device on a balloon

With these technologies, the Academy of Military Sciences can make a batch of hot air balloons in a short period of time.

At that time, it can be used to shock those Romans, Dashi and Tianzhu country bumpkins who are about to arrive in the Tang Dynasty.

And the special steel craftsmanship that came out of the second gift package made Qin Huaidao overjoyed.

The biggest factor restricting the number of cannons in the Tang Dynasty is not the lack of qualified gun steel craftsmanship, which leads to the use of urgent and expensive copper to make guns.

And this special steel process perfectly solves this problem

And this kind of special steel, as long as the current steelmaking plant of Datang is transformed to a certain extent, after a small blast furnace ironmaking plant is proficient, the output of special steel in one month is enough to reach more than [-] tons, which is enough to create two hundred tons for Datang. steel cannon

And the price can also be reduced to about [-] per door: if mass-produced, it can be reduced again

Qin Huaidao's plan for a cannon and giant ship can finally be realized

Whether it is the Caliphate Empire, the Eastern Roman Empire, or Tianzhu, they all have vast coastlines, and the richest areas are also on the seaside or the edge of rivers.

And a fleet with dozens of small treasure ships, equipped with hundreds of artillery pieces and carrying [-] marines is enough to bring disaster to a prosperous coastal city.

Especially with the technological progress of special steel, the higher the chamber pressure that can be tolerated, the farther the shells can be shot, and the greater the power.

Qin Huaidao's plan of going from sea to land and using sea to control land can be truly realized.

The importance of sea power has already been fully verified

Without Qin Huaidao's large voyage plan and a huge fleet, it would be at least dozens of times more difficult for the Tang Dynasty to achieve a stable rule over Persia, which is like an enclave thousands of miles away.

The reason why the Eastern Roman Empire was able to defend the capital of Constantinople in the Persian offensive decades ago, and now block the Cannibal offensive, is also due to the fleet.

Historically, the reason why the Eastern Roman Empire was able to exist for more than a thousand years, survived for [-] years under the offensive of the Caliphate, and perished two hundred years later than the Caliphate, the powerful fleet was definitely the first factor.

And the Greek fire that the Eastern Roman Empire fleet relied on, although it was extremely easy to use to bully Persians and Cannibals, was actually just a petroleum product. In front of Tang’s artillery, it was completely slag.

The cannon and giant ship is the absolute symbol of sea control!: I have caught a cold these days, my head is dizzy, my state is very poor, and the writing is not good. I also ask readers to give more advice and comments

chapter

Chapter [-]: Father-in-law, do you want to fly?

? (The third update! Please complete the order!)

In the scientific research institute, Zhou Xin and Mo Yi are already in a state of frenzy.

The technology of special steel has definitely solved the biggest problem of the scientific research institute at present. Although the process is a little more complicated, once it is formed, the mass production of artillery can be officially launched.

And the craftsmanship of the hot air balloon made the two well-informed people completely shocked.

Although the principle is simple, it is very difficult to operate in practice

The reason why Kongming lanterns are only allowed to fly in designated places is that the fireproof performance of the material is not good enough, and it will turn into a fireball if you are not careful. If you are unlucky, it will be a fire.

It is too difficult to be airtight, fireproof, and durable materials

The several large Kongming lanterns currently trial-produced by the scientific research institute not only have poor load-carrying performance, but also have low safety. The blueprint provided by Qin Huaidao perfectly solves the problem of "seven, eight, seven"

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Moreover, the design of the entire hot air balloon is also very delicate, whether it is the airbag, the hanging basket, the three parts of the heating device, or the various strategic wind direction and wind speed devices attached to it, all of which are eye-opening for Zhou Xin and Mo Yi.

"Okay, don't worry about it, how long will it take you to get your first hot air balloon out?"

Qin Huaidao interrupted the two vice presidents who were still admiring.

"Most of the materials required on the drawings are ready-made. Only the composite fireproof glue and fuel need to be pre-configured. It can be completed in three to five days."

Zhou Xin thought for a while.

In today's scientific research institutes, there is a collection of various materials that Datang has discovered so far, including the black oil oil used as the fuel for hot air balloon value devices, and there are a lot of stocks.

As long as you follow the method given on the drawing, you can simply refine and purify the crude oil.

The real trouble is the configuration of a layer of composite fireproof glue brushed on the outside of the airbag

The configuration of these things requires delicate glass instruments to carry out chemical reactions, and it is difficult to speed up the first configuration

And after brushing the glue, it has to be placed outside for a period of time to blow off the odor.