Haider walked into the restaurant, looking at the luxuriously decorated restaurant, his eyes lit up, but he didn't pay much attention to it, turned to look at McGonagall and said with a smile: "Boss Mai, thank you for taking the time to talk to me." ”

"You may be seated, I'm actually quite interested in these things." McGonagall smiled, put the glass of water in her hand on the table beside her, went into the kitchen and poured another glass of water, gently placed it in front of Hyder who had just sat down, pulled out a chair and sat down in front of him.

When it comes to steam engines, McGonagall claims to know everything about it, after all, he independently completed an improved design of a two-stroke reciprocating piston internal combustion engine for his graduation project, although this improvement proved difficult to apply in the final experiment, but in theory it can improve the thermal efficiency by three percentage points, and with this graduation thesis he got an excellent graduate with a limited number of places.

This is also the only thing he did seriously in the four years of college, and in this process, he also studied the steam engine, internal combustion engine, and steam turbine by the way, and he still remembers the structure and principle clearly, and even remembers a few classic parts and models.

Of course, it is unrealistic to let him make these things by himself, but if he is asked to draw a few drawings and explain the principles, there is naturally no problem at all.

To put it simply, as long as he is given a good blacksmith who can make accessories that meet the standards, he can make a steam engine by himself and kick the world into the age of steam.

However, McGonagall didn't have much interest in doing this before this, whether it was Thomas Seville and Thomas Newcomen, who invented the steam engine, or Watt, who improved the steam engine, they only left their own names in the history of the steam engine, and he didn't have much interest in going down in history, but he was still quite curious about the mechanical level of the world.

"Thank you." Haider put the water cup aside, opened the cloth bag in his hand, took out a few drawings from it and put them on the table, looked at McGonagall and said with a serious expression: "That's the case, we have been studying how to convert water vapor into kinetic energy for many years, and then use it in production and life, so as to replace animal power and improve production efficiency." And now, we have successfully converted it into kinetic energy, although the output is not very stable, but we already have the idea that it is he tends to stabilize, and now the problem that needs to be solved is how to transfer this energy to other objects to make this energy useful. ”

"Very bold and interesting idea." McGonagall glanced at the rough drawings on the table, her eyes lit up, and she looked at Heider with a little respect, unlike him, Heider didn't have the shoulders of giants to step on, and it was already a very genius idea to think of using steam, and it was an admirable spirit to insist on doing it.

McGonagall still admires the scientists who are immersed in scientific research and invention, and their whimsical ideas and years or even lifetimes of research continue to push human society forward.

From the industrial revolution to the modern world, in just two hundred years, it can be said that a steam engine opened the prelude to this great era and accelerated the development of human society.

And the man in front of him is almost about to do this.

The drawings of fine charcoal are a little rough, but the overall structure is arranged very clearly, single-cylinder design, steam pushes the piston in the cylinder, and then through the external pouring cooling method to form a low-pressure state in the cylinder and push back the piston, forming a reciprocating motion, connecting the connecting rod of the piston can obtain a certain kinetic energy.

This model of the steam engine is very similar to the Newcomen steam engine, and as Heider says, they have succeeded in turning steam into kinetic energy.

However, there is still a distance of about one watt from the use of this kinetic energy in production and life.

But to be able to do this from scratch, McGonagall already has a lot of admiration for Haider and his team.

After all, in this world of swords and sorcery, people still worship knights who can control the griffin to soar into the sky, and machinery can be said to be a new and unpopular profession, if you tell people that one day ordinary people can also fly into the sky, and the speed on land can be faster than that of a leopard, probably only be considered crazy, right?

"Thank you." Heidell looked at McGonagall and said with some gratitude, he heard the approval in McGonagall's eyes and words, different from the perfunctory expressions of ordinary people, and even the undisguised ridicule, these things he had experienced a lot in the past twenty years.

From a bushy black hair to a balding appearance, no one knows what kind of pressure he and his team have endured for more than two decades.

Others envy their high wages and subsidies, but a few people know that for this project, these core members of their core members have put almost all their savings into it, and he and his wife still live in the old house allocated by the school more than 20 years ago, and walk to class every day just because they are really reluctant to hire a coachman and raise a horse, which is enough to make another model in a year.

And these things, except for his wife, who has lived a poor life with him all his life, even the two children can't understand it, and even only go home once a year.

"You're welcome, but I'm curious why you want to look into this?" McGonagall smiled and looked at Hyder and asked, McGonagall Alex's memories were almost all about sword training and fighting.

"After a hundred years of relatively peaceful development on the Norland continent, commerce has developed greatly, and there have even been many trading houses across the entire continent.

Manpower and animal power have begun to be somewhat unable to meet the needs of production, although magic is a very powerful existence, but the high cost limits the use of magic by workshop owners, of course, in some expensive fine products, the application of magic is still very common.

Therefore, we believe that the world urgently needs a low-cost, energy-efficient power plant, and this idea has been recognized and supported by the Castle Lord's Mansion, which is why this project, which has not produced any effective results, has been able to persist until now. Heider replied earnestly.

"Well, it's the best of times." McGonagall nodded, according to Heider, capitalism had been developed to a certain extent on the continent of Nolan, and people were beginning to urgently need something that would effectively improve production efficiency.

At this time, if a mature steam engine can come into being, it will definitely be able to be promoted and applied in a short period of time, which should be the reason why the City Lord's Mansion has the patience to support a money-burning project for more than 20 years.

"At this pace, in another twenty years, the first industrial steam engine will not be available." McGonagall looked at the drawing, thinking with some pity in her heart, when suddenly a flash of inspiration and her eyes lit up, "How much can a perfect steam engine blueprint sell?" ”