Wu Yanzhi's science is mining engineering, which is a very simple matter to make holes and install funnels, of course, measurement technology will be very important.

It is easy to do without a level, but without a theodolite, it is impossible to ensure accurate penetration.

As for machines, such as diesel engines, they know the principle, as long as there is suitable steel, it is not difficult to develop diesel engines.

Diesel engines are internal combustion engines. And I happened to study metallurgical engineering with a master's degree, and this smelting is very familiar.

Although the internal combustion engine technology was inspired by the steam engine, there is a big difference between the two. In fact, it is much simpler to build an internal combustion engine than a steam engine.

Although the steam engine came out first, it was more difficult and troublesome than the internal combustion engine, such as high-pressure boilers and gas supply systems.

After Wu Yanzhi finished speaking, he heard that Zhang Dajiang and a number of officials who would be the prisoners and Han Jiacang City were extremely shocked. Unexpectedly, this Wu Yanzhi actually listed all the possible plans.

In the end, what else did Wu Yanzhi say, what kind of "machine", what is this thing?

The master Zhang was also puzzled, so he asked, "Wu Lang, the 'machine' you just talked about at the end seems to be very powerful, what is it?" ”

Wu Yanzhi said lightly: "That thing is extremely powerful, you must know that the prime minister of Shu once made a 'wooden ox flowing horse', right?" This machine is a hundred, a thousand times more powerful than that thing!

But it will take some time to build! The main reason is that there is no suitable steel and some other necessary fuel.

And it also needs to be redesigned, and when I build it someday, I'll give you a demo! ”

When everyone heard him talk about this "wooden ox and flowing horse", they seemed to understand what he was going to build, and they were full of anticipation.

"Can this machine be faster than that wooden ox and flowing horse?" Zhang Dajiang asked.

Wu Yanwu shook his head, it's not the same thing, how can it be compared together? The machine must be added with a transmission system, a transmission system, a walking system, etc., before it can be turned into a means of transportation.

If it becomes a car or a train, how can the speed be compared with a wooden ox and a flowing horse?

He smiled slightly: "Wooden cow flowing horse? If this machine were to run, it would be many times faster than that of the Maxima! ”

In the eyes of everyone's incomparably surprised, Wu Yan said: "Zhang Gong, let's go!" It's time to go home......"

……

In the evening, the Taoist temple.

Zhang Dajiang and others drank a lot of wine together, and he was in a very happy mood.

The windows are ajar, and the breeze blows a few strings of wind chimes! Wu Yanzhi lay on the bed, not sleepy at all.

He looked at the wind chimes that were blown by the breeze, and suddenly remembered the building machine he had talked about in the afternoon.

Nima! Could it be that you have obsessive-compulsive disorder? Why is it that you don't finish a thing, and you always think about it in your heart?

Ay! Obsessive-compulsive disorder is obsessive-compulsive disorder.

Why is he also a winter official, and he is also the chief official of Shang Fangjian, who is in charge of the country's handicraft industry.

If you make a few things that can be used in industry, your status in the eyes of your colleagues and the emperor will be different, and your status among the children of the martial arts family will be different.

However, at this time, good steel is scarce, and the price is very expensive, and it is quite difficult to get a machine.

Not to mention the most difficult internal combustion engine, even the "chain hoist" is not easy. In the case of steel, it will take at least one or two years from design, drawing, processing, and improvement.

Moreover, you have to find a few craftsmen who are good at making these strange things, such as locksmiths.

Of course, for himself, finding someone is a matter of effort---- and all the rosters of skilled craftsmen in the country are owned by Shang Fangjian.

Thinking of the manual hoist and the locksmith, several novel things popped out of Wu Yanzhi's head: jacks, clocks! By the way, there are also gunpowder, muskets.

With my own theoretical knowledge, it is not difficult to make these things, but it takes time, materials, and manpower.

Speaking of time alone: mechanical jacks up to half a year; Hydraulic jacks for up to one year.

Clock? When I was a child, I disassembled a mechanical clock, and this thing actually relied on the elastic force of the spring to drive the hands of the clock to keep time.

The principle is simple, and it may not be a big problem to make a bell in two years.

Muskets! This thing must first have gunpowder, I studied mining as an undergraduate, and I studied the course "Blasting Engineering", so it is very simple to make simple gunpowder.

However, to make high-quality gunpowder and explosives, it is very troublesome and requires trial and error.

By the way, black powder has a very poor sensitivity, and there is no problem with the propellant and explosives used as a gun, but it cannot be used as a primer, and there must be mercury thunderate (also called mercury thunder).

I only remember the chemical equation for the development of this thing, and it is estimated that it will take a month or two to a year.

With gunpowder, it does not mean that you can make a qualified musket.

It is not difficult to build a smoothbore gun, and with the craftsmen of Shang Fangjian, it will be a few months at most.

However, rifled guns, this thing needs good steel, otherwise the probability of exploding the rifle will be very high. Of course, as long as each gun is tested for charge before it is officially used, any explosion can be completely avoided.

There is also rifling, although it can be pulled by hand, but it is too slow. Of course, with more people, rifling is not a problem! Maybe hand rifling is better than machine-drawn rifling.

Also, how to control the standard degree of pipe diameter, the pipe diameter can not be large or small, the difference is too large, which must be accurate mold, or lathe to process and produce.

It is estimated that a few rifled guns for experimental purposes will be built, and it will be possible in a few months.

Finally, he thought of the most technologically complex internal combustion engine.

This thing is actually much easier than the steam engine in terms of principle, and without the gas supply device of the high-pressure boiler, it actually saves a lot of trouble.

Of course, I only know how a four-stroke machine works. To build this thing, it is difficult, one is steel, the second is the lathe, and the third is the fuel.

Fuel is not a problem, ordinary oil can be tested first, and alcohol can also be used.

Of course, it ultimately involves the smelting of gasoline and diesel, and of course, the smelting of ordinary gasoline and diesel is not a big problem.

My own group company also received an oil refinery! I know how to smelt gasoline and diesel, and it's just an ordinary distillation method.

Of course, the control of oil quality is a problem.

It is estimated that three years is enough to make a sample of an internal combustion engine that can run autonomously, maybe two years is enough.

However, it will definitely take 5~10 years or even longer to build an internal combustion engine that can be industrially produced.

Thinking about it, in fact, these things actually need three of the most critical things: one is high-quality steel, the second is talent, and the third is money.

For steel, this is their old business, as for talents, one is to find skilled craftsmen all over the country.

The second is to cultivate some talents who understand basic physics and basic chemistry.

As for investment, this is very easy to do, still using the old method, looking for big businessmen to invest in shares, you know, once this thing is manufactured, it is a million profits.

Thinking of this, he secretly decided: it seems that he should take the opportunity of copper and iron to set up a "new machinery research and development office".

I also had to ask Sun Heng and them to copy a list of craftsmen from all over the country.