"Dean Lin, can you tell me what these things are used for?" Orlando asked curiously.
"Make some weapons to deal with a possible war that may be coming." Lin En explained.
Orlando's expression became solemn. Although the news of the war was only circulated within the parliament, many wizards had already guessed a clue through the recent major actions of the parliament.
"By the way, I also plan to continue expanding Yieta College and recall those wizard apprentices and even official wizards who have left the school back to Yieta so that they can continue their studies." Lin En proposed again.
Orlando was completely shocked, and it took him a long time to react, "But what should we teach?"
Those wizard apprentices who were expelled from the academy were all over thirty years old. They had basically learned everything that could be taught, but they were unable to be promoted due to their lack of talent.
Not to mention the graduating students. As official wizards, they cannot teach even if they want to.
"Of course it's chemistry, physics, and mathematics Olympiad!" Lin En said firmly.
"Chemistry? Physics?" Orlando paused. He understood Mathematical Olympiad, but what were these two subjects?
"You can also understand these two new subjects as the principles of magic, or the laws by which things work!"
Lynn gave a brief explanation, and finally asked Orlando to compile a list of alchemists, especially those wizards who had done some research on steam engines, and invite them all to the academy!
…
At noon the next day, in the alchemy laboratory of Yieta College.
More than twenty wizards gathered around a few large pieces of white paper, turning them over and over. On them was drawn a very strange machine with very complicated components, making it difficult to understand. However, the exquisite structure immediately attracted everyone's attention.
Darren and others were also invited, but they were squeezed outside and did not dare 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 take a look.
"Dean Lin, what is this?" An alchemist looked at Lin in confusion, and then suddenly seemed to remember something and said in doubt. "Is it the blueprint of the alchemical steam engine?"
Upon hearing this speculation, all the wizards present were excited.
The alchemical steam engine is the highest achievement of the Alchemy Association and is said to be a magical invention that can change the world!
Naturally, they were very interested in this thing. Some people even dismantled the alchemical instruments placed on the ship and studied it secretly. They have also achieved some results over the years.
However, the structure of the alchemical steam engine did not seem to be like this. They even suspected that the dean had taken the wrong drawing.
"No, to be precise, it is an upgraded version of the steam engine. I call it an internal combustion engine!" Lynn explained with a smile.
Upgraded version? Philip and others looked at each other in bewilderment.
"Is there any difference between it and a steam engine?" another witch asked curiously.
"Its efficiency is more than ten times that of existing steam engines!" Lynn replied affirmatively.
Steam ships powered by this were not much faster than sailing warships when sailing on the sea, and the cruising speed of airships could only be maintained at a pitiful 15 kilometers per hour.
Of course, this does not prevent the steam engine from being a groundbreaking invention.
"How much? Ten times?" A group of alchemists took a deep breath and looked at Lin En as if he were a monster. Then they looked at the blueprint in front of them and their eyes became much more eager.
"Can it be put on the airship?" Lydia asked excitedly.
"Of course, it can increase the speed of the airship from 15 kilometers per hour to more than 70 kilometers per hour!" Lin En said the most conservative value. "It can also be used to drive ships or anything else you want to move!"
"Seventy kilometers? Wouldn't it take half a day to get from Yieta to Greenrail?" Philip said in astonishment.
This is too fast.
Is it really that fast? Lin En smiled, then took the blueprint and explained to the alchemists and halfling craftsmen like Darren the operating principles and differences between steam and internal combustion engines.
A steam engine is essentially a process of boiling water, which converts the water in the boiler into steam and then sends it to the cylinder, pushing the piston to do reciprocating motion.
Simply put, it converts the chemical energy of the fuel into the thermal energy of steam, and then converts the thermal energy of the steam into mechanical energy, thereby generating a continuous source of power.
As its upgraded version, the internal combustion engine reduces the steps, converts thermal energy into mechanical energy, and generates high-temperature and high-pressure airflow through the rapid combustion of fuel to drive the piston movement, so the efficiency is naturally much higher.
As for its fuel problem.
The most primitive internal combustion engine uses gas as fuel to provide energy.
There are still some wizard lands with coal resources.
In fact, Lin En would rather use hydrogen directly as fuel, which would not only increase the thermal efficiency to more than 50%, but would also be very environmentally friendly and pollution-free.
This idea was proposed as early as the 18th and 19th centuries, but the cost of extracting, storing and transporting hydrogen fuel is very high, so it is more cost-effective to use fossil fuels.
However, for wizards, the production of hydrogen is not that difficult, which makes hydrogen-powered internal combustion engines possible.
In this way, let alone letting the airship reach a speed of 70 kilometers per hour, even 200 kilometers is possible! However, the almost zero industrial level of the Yieta Seaport gave Lin En a headache. He could only hope that these alchemists could think of ways to use magic to solve various technical problems and create an alchemical internal combustion engine that combines technology and magic! Even though Lin En explained the principles of the internal combustion engine in great detail, the large number of terms in the middle still made the alchemists ponder for a long time. After a dispute and discussion, they began to work on the transformation process.
For example, how to improve the cylinder's ability to withstand high temperature and high pressure, or how to record the alchemy array into the internal combustion engine to continuously produce combustible gas without being destroyed by the high temperature environment inside...
Lydia and others did not participate in the research on magic modification, but were very interested in something called gears in the internal combustion engine.
Several gears of different sizes fit together and transmit power through rotation. It is very magical. Although she has seen similar things on steam engines before, they are far from being so sophisticated...
(PS: Please support me for the third update...) (End of this chapter)