Oil has been mined as early as the Western Han Dynasty by the great Chinese people to replace firewood, but because this thing is inconvenient to carry, coupled with the technology does not allow, it has not been widely promoted.

And at that time, it was not called this name, but it was called Shi Qi, and I knew that a science and engineering boss named Shen Kuo in the Song Dynasty named it oil in Mengxi's pen talk, and made a divine prophecy:

This thing will be in the world!

The Mining Department of the Faculty of Engineering also included a course on oil extraction for this purpose, and although this made the teachings feel inexplicable, three of the first batch of Faculty of Engineering disciples who went out to prospect for mines were in charge of oil.

"But my lord, oil is not as powerful as gas, and it produces a lot of impurities and black smoke, and the machine will be scrapped in a very short time." Song Yingxing said bluntly.

As a master of engineering in the Ming Dynasty, Song Yingxing certainly knew about oil, and he also considered using oil as fuel, but it turned out to be unworkable.

"Of course, crude oil can't be used directly, it needs to be reprocessed, and the specific method will be handed over to you when the king goes back and summarizes it." Liu Hong gradually frowned and said.

As a young man of the five good generations, he certainly knew that oil refining depends on the difference in boiling point, and after distillation, the first refining of crude oil can be refined into gasoline, kerosene, light and heavy diesel oil, and asphalt.

If the technology allows, all kinds of refined things can also be refined twice, and more than a dozen different substances such as methane, ethane, paraffin, and lubricating oil can be obtained through heating and catalysis.

It's just that how to do this, I'm sorry, he has to go back and flip through the book!

He doesn't have the super-divine memory of other time-travelers, and he is so supernatural that he can even remember the content of a county's county chronicles, but fortunately, he has a book to make up for it.

There is no need to think about the secondary refining, and the technology cannot be completed in a short period of time, but the simple distillation separation is not difficult.

After Liu Hong finished speaking, the young Sun Yunqiu's eyes widened.

In the two years since the opening of the School of Engineering, Sun Yunqiu has only seen the number of times the mountain chief himself has seen a handful, and in his impression, the mountain chief is just a layman, who would have thought that what he said just now gave him a heavy slap.

Where is the mountain elder a layman, obviously a well-informed engineering master, it must be the matter of the court and the middle of the mountain to divide the heart of the mountain chief, otherwise the mountain elder will definitely leave a name in the history of engineering in the Ming Dynasty, Sun Yunqiu thought.

Song Yingxing has long been accustomed to Liu Hong's earth-shattering remarks, and he knows that since Liu Hongjian said it, he will definitely be able to solve the fuel problem, and what he has to do is to realize it.

And Song Yingxing knew that Liu Hongjian would never just talk.

"This is the drawing of the internal combustion engine, the principle, Song Lao can be very thorough, must be developed as soon as possible, this is too important for Daming." Liu Hong was stunned for a moment, and tore off a few chapters about the internal combustion engine from the heavy industry base inside the ring and handed them to Song Yingxing.

Although Sun Yunqiu's conception is ingenious, the real internal combustion engine is much more complex than the steam engine.

The strange machine in the house was at best a half-finished product of a stroke, and the most suitable for an internal combustion engine to be more efficient was a four-stroke, which was later known in Europa after decades of trial and error.

Now Liu Hong gradually let Daming skip this painful process, and directly told Song Yingxing the result, although he didn't know if this kind of seedling pulling and boosting progress was good, but he couldn't control it so much.

Song Yingxing took the drawings and didn't ask where they came from, he directly put on his reading glasses and looked at the window, and Sun Yunqiu on the side was curious.

After a while, the two of them muttered and discussed by the window, sometimes marveling at the ingenuity of the drawings, and sometimes frowning and puzzled.

On the contrary, Liu Hong gradually became an idler and couldn't interject, he knew that this was a common problem of science and engineering men, and quietly left the steam engine research room after handing over the drawings to Song Yingxing.

The fuel for the internal combustion engine is not enough, and the ignition problem is also very serious, unless he can get the generator out and use electricity to ignite, he can't think of any other way in the short term.

After wandering around the ordnance institute for a while, Liu Hong gradually transferred to the firearms research room.

The firearms laboratory is located at the very edge of the wall, and there are no other buildings around it, also considering that gunpowder research is too dangerous.

Five or six craftsmen in the research room were lying on the table and doing their own experiments, and when they saw someone coming in without knocking, they couldn't help but turn their heads in surprise to take a look.

"Lord Wang...... The little one has seen the prince! Seeing that it was Liu Honggradually coming, several people left their seats in flattery.

"No need to be polite, continue your experiments, I'm just here to see." Liu Hong smiled and nodded.

The huge long table in the research room was filled with all kinds of glass test tubes, black gunpowder, all kinds of indescribable liquids and powders, as if the glass test tubes were a companion of chemical progress.

"Is there any progress in primer research?" There was a sour smell in the research room, and Liu Hong gradually frowned unconsciously.

"Back to the prince, it's ...... Not yet. A craftsman stammered.

At that time, Song Duantou only told them that the primer could use thundermercury as a material, and thundermercury needed to be neutralized by mercury and acid, and these days they had tested almost all the acids they could think of, but still did not create the extremely sensitive thundermercury.

"Don't be discouraged, this king believes that you will definitely be able to make it, in this way, this king will give you a month, if anyone can develop mercury thunderate, this king will personally reward 10,000 taels of silver, and report to His Majesty to ask for merit for him!"

Liu Hong gradually felt that these craftsmen were a little depressed, and couldn't help but cheer.

When several craftsmen heard this, their eyes lit up, they didn't dare to think about what a lot of wealth 10,000 taels of silver was, but since the prince said this, he naturally wouldn't deceive them.

It's just that what they value more is the sentence of reporting to His Majesty for merit, and there are several people in the Ordnance Institute who have been awarded martial arts by His Majesty for inventing useful firearms.

Unlike 10,000 taels of silver, 10,000 taels of silver may be a lot, but Wuxun means glory and their status.

"Lord Wang, I will stay in this research room from now on, if I can't develop thunder mercury for the prince, I won't go down to this West Mountain!" A craftsman's urn sounded, and he gritted his teeth.

The rest of the people also made up their minds, and Liu Hong gradually saw that these craftsmen had finally regained their confidence, and left the armory with a few words of encouragement.

On the way back home, Liu Hong gradually had a lot of worries, grenades, the flowering bombs he had in mind, when would they be able to be assembled on the battleships of the Ming Dynasty, there was a long way to go!

However, there was not much time left for peace in the Ming Dynasty, and after the naval battles of Taiwan and Palawan, Liu Hong gradually did not think that the Dutch would give up.

How could this rookie of Europa, who had defeated the Spanish Armada, tolerate the loss of Taiwan, or the death of two governors at the hands of the Ming people, and how could the Dutch be happy to hand over the agency of silk and porcelain to Franco?

Perhaps, the next time I meet the Dutch, I will never die, Liu Hong gradually thought to himself.

When he returned home, Liu Hong gradually locked himself in the study, took out the heavy industry foundation and began to read it, he directed the eyes of the Ming Dynasty to the ocean, he must take the helm, all the pressure will eventually gather to him......

Time flies, and in a blink of an eye, it's September.

On this day, Liu Hongjian was reading a book in the study, but saw the British public Zhang first breaking in without notification.

"Lord Wang, our fleet has returned from Southern Melica!"

……