"Dean Lynn, can you tell me what these things are for?" Orlando asked curiously.

"Craft several weapons for a war that may be coming." Lynn explained.

Orlando's expression became solemn, although news of the war was still circulating within the council, many wizards had already guessed the clue from the council's recent big moves.

"By the way, I also plan to continue to expand the Iyeta Academy, and recall the wizard apprentices who have left the school, and even the official wizards, to Iyeta so that they can continue their studies." Lynn suggested again.

Orlando was stunned, and it took him a long time to react, "But what should we teach?" ”

The wizard apprentices who were expelled from the academy were all over thirty years old, and had basically learned everything they could teach, but they couldn't be promoted due to lack of talent.

Not to mention the graduating students, who are also official wizards, they can't teach if they want to.

"Chemistry, physics, and math Olympiad, of course!" Lynn said categorically.

"Chemistry? Physics? Orlando paused, he understood the Olympiad, but what were these two subjects.

"You can also understand these two new disciplines as the principles of magic, or the laws by which things work!"

Lynn gave a simple explanation, and finally asked Orlando to compile a list of alchemists, especially those who had some research on steam engines, and invited them all to the academy!

……

At noon the next day, in the alchemy laboratory of the Iyeta Academy.

More than twenty wizards rummaged around several large sheets of white paper, on which were drawn a very strange machine, the components were very complex, and it was difficult to see, but the exquisite structure still attracted everyone's attention at the first time.

Darren and the others were also invited, but they were all crowded outside, not daring to compete with the wizards for the drawings, only Lydia moved a high chair without hesitation, and even wanted to climb onto the table to look.

"Dean Lynn, what is this?" An alchemist looked at Lynn in confusion, and then suddenly said in disbelief as if he remembered. "Could it be the blueprint of the alchemy steam engine?"

Hearing this speculation, the wizards present were all shocked.

The Alchemy Steam Engine is the highest achievement of the Alchemy Society, and it is claimed to be a magical invention that can change the world!

They were naturally very interested in this thing, and some people even dismantled the alchemy instruments placed on the ship, secretly researched them behind the scenes, and made some achievements over the years.

However, the structure of the alchemy steam engine did not seem to look like this, and they even wondered if the dean had taken the wrong drawings.

"No, it's an upgraded version of the steam engine, I call it an internal combustion engine!" Lynn explained with a smile.

Upgraded? Philip and the others looked at each other.

"Is there any difference between it and a steam engine?" The other witch asked curiously.

"It's more than ten times more efficient than existing steam engines!" Lynn replied in the affirmative.

He had already checked the steam engine made by the Alchemy Association, and the thermal efficiency was between three and five percent, which could only be described as very inefficient.

Steamships powered by this power were no faster than sailboats on the sea, and airships could only maintain a cruising speed of a measly fifteen kilometers per hour.

Of course, this does not prevent the steam engine from being an epochal invention.

"How much? Ten times? The alchemists gasped, looked at Lynn with a monster-like gaze, and then looked at the drawings in front of them, their eyes becoming much more eager.

"Can it be placed on an airship?" Lydia asked excitedly.

"Of course, no problem, it can increase the speed of the airship from fifteen kilometers per hour to more than seventy kilometers per hour!" Lynn said a number that was as conservative as possible. "It can also be used to drive a ship or whatever you want it to move!"

"Seventy kilometers? Wouldn't it take you half a day to get from Iyeta to Greenrier? Philip said in amazement.

It's also too fast.

Is it really that fast?

Lynn smiled, then took the drawings and explained the working principles of steam and internal combustion engines and their differences with the alchemists and halfling craftsmen like Darren.

The steam engine is essentially boiling water, so that the water in the boiler boils and converts into steam, and then sends it to the cylinder to push the piston to do reciprocating motion.

To put it simply, it is to convert the chemical energy of the fuel into the thermal energy of steam, and then convert the thermal energy of the steam into mechanical energy, thus generating a steady stream of power.

As an upgraded version of the internal combustion engine, it reduces the number of steps, converts thermal energy into mechanical energy, and generates a high-temperature and high-pressure air flow through the rapid combustion of fuel to promote the piston movement, and the efficiency is naturally much higher.

As for the question of its fuel.

The most primitive internal combustion engines used coal gas as fuel to provide energy.

Coal resources are still available in the Wizard's Lands.

In fact, Lynn prefers to use hydrogen directly as fuel, which can not only improve the thermal efficiency to more than 50%, but also be very environmentally friendly and pollution-free.

This idea was proposed as early as the eighteenth and nineteenth centuries, but hydrogen fuel is very expensive to extract, store and transport, compared to fossil fuels.

However, for wizards, the production of hydrogen is not so difficult, which makes hydrogen-powered internal combustion engines possible.

In this way, not to mention allowing the airship to reach a speed of 70 kilometers per hour, even if it is 200 kilometers!

It's just that the almost zero industrial level of the port of Iyeta gives Lynn a headache, and he can only hope that these alchemists can think of a way to solve various technical problems with magic and make an alchemical internal combustion engine that combines technology and magic!

Although Lynn explained the principle of the internal combustion engine in great detail, the large number of terms mixed in between made the alchemists ponder for a long time, and after a period of argument and discussion, they began to start the process of transformation.

For example, to improve the cylinder's ability to withstand high temperature and high pressure, and how to burn the alchemy formation into the internal combustion engine, so as to continuously manufacture combustible gas without being damaged by the internal high-temperature environment......

Lydia and the others were not involved in the study of magic modifications, but were instead interested in a thing called a gear in the internal combustion engine.

Several gears of different sizes fit together and turn to transmit power, which is very magical, although she has seen similar things on steam machines before, but it is far from so elaborate......