Li Yuanjing came, Li Yuanjing left, and at this time, I couldn't help but think of a joke that used to be, taking the cleaner's salary and the president's heart.

Gin and turn the page!

Perhaps, it's time to get your mind right......

On the way back, Li Yuanjing kept recalling the method of making penicillin by himself back then, and seriously thought about every step.

However, due to the fact that too much time has passed, and there has been no further in-depth research after the failure of that year.

To put it bluntly, it's an idle guy who hurts, and at the moment of a whim, a fucking idea suddenly pops up, and then after failure, he feels that he really hurts.

Li Yuanjing couldn't help but regret a little, why didn't he study hard back then?

But fortunately, some of the basic materials are still about to remember, and it's a big deal to test them a few more times, and if you do small-scale experiments, it shouldn't cost much, right?

"Your Highness! Your Highness! Li Yang, who had disappeared for many days, was standing in front of the palace waiting for him at this moment, and when he saw Li Yuanjing coming back, he immediately waved his little hand excitedly.

It's good not to see this product, but now why does Li Yuanjing always feel that he has a stomach full of anger?

Said to go back and consult the classics, and then there was no follow-up?

Li Yuanjing not only had a dark face, but said bluntly: "You'd better give this king an explanation!" ”

"Your Highness, isn't this a lowly thing to engage in, after all, no matter how much you say, it's better to see it with your own eyes, don't say it, I really found a lot of useful things under this investigation!" The more Li Yang said, the more excited he became, and the reason why he didn't rush over immediately after finding the information was completely to come over after getting the real thing.

As for the headquarters of Qianzhuang, several large warehouses are suspended first, and houses and walls are built first.

Only then did Li Yuanjing notice that Li Yang was holding a small porcelain vase in his hand, about two catties or so.

"At present, the earliest record that can be found and is well-documented should be the "Book of Han. In the Geographical Chronicles, Gaonu County has water that is combustible. This is followed by the Book of the Later Han Dynasty. According to the records under the Yanshou County chapter of the County Chronicles, there are mountains in the south of the county, and the stone springs are as big as that, and the burning is extremely bright, not edible, and the county people call it stone paint.

In the "Naturalist Chronicles" written by Zhang Hua of the Jin Dynasty, it is mentioned that Jiuquan County has stone paint, which can be used to plaster cars. There is a similar record in the Northern Wei Dynasty's "Notes on the Book of Water". However, seeing these records, the humble office suddenly thought of another record, the "Book of Changes" recorded that there is fire in Ze, and the upper fire is lower than Ze, and the humble speculation may be the earliest record of stone paint. Li Yang Balabala told Li Yuanjing about the results of his research.

Li Yuanjing was confused when he heard it, what kind of stone paint is as inedible as water, let you find something that can be used as a lubricant, what are you telling me so many allusions?

Is it to prove how hard you work? Does this need to be proven?

Li Yuanjing directly took the small porcelain bottle in Li Yang's hand, and when he opened the plug, he smelled a choking smell, and Li Yuanjing, who was stimulated by the strong smell, couldn't help but cover his nose.

looked at Li Yang with some anger, if this thing is used as lubrication, make sure that the people who work will not be stinky to death?

Due to the haste to cover his mouth and nose, the bottle in his hand was not able to hold it steadily for a while, but it did not fall to the ground.

But there was some liquid spilling down the bottle, black and slimy......

Well?

Seeing this thing, Li Yuanjing couldn't help but be stunned, isn't this crude oil?

Lubricating oil is also refined from crude oil, so if you use crude oil directly, although the effect may not be very good, as long as you take good measures, it should not be a big problem.

"Why didn't this king think of it?" Li Yuanjing slapped his head suddenly, how could he forget about oil?

However, I subconsciously reacted, not that I forgot this thing, but that I made the mistake of empiricism, and subconsciously thought that the ancients had no technology and could not extract oil from the ground.

However, not all oil is buried deep underground, although these exposed oil reserves may not be too much, and it is not known how long it will last before disappearing.

But if it's just used for lubrication, it's still not a big problem.

As for refining oil, sorry, this one is really powerless.

"Where did you find it?" Li Yuanjing asked directly, this is a big treasure, even if it doesn't have the ability to develop more uses for the time being, it can be used to study slowly, and direct use can also support it for a while.

"Yanzhou, there is more than a section of Weishui, but after it flows into the Yanhe River, it is not easy to find, and it is floating on the water!" Li Yang said.

Yanshou County or something is better for the time being, the Tang Dynasty is not capable of hitting there now, with the fall of the Sui Dynasty and the establishment of the Tang Dynasty, of course some remote areas will have some ideas.

"Isn't it Gaonu County?" Li Yuanjing frowned slightly, could it be that Li Yang's memory was out of order? What I said just now, isn't it Weishui in Gaonu County? How can you forget it in the blink of an eye?

"Your Highness...... Yanzhou is Gaonu, no, about 400 years ago, Gaonu County has been abolished, and now you can probably still find some small dirt slopes......" Li Yang couldn't help but explain helplessly.

"Liu Hu! Take someone to Yanzhou with Li Yang, how many of these things you want, and try your best to transport them back! Li Yuanjing pretended not to be embarrassed at all and ordered.

Anyway, if there's something good, it's shipped back first.

However, it is estimated that the quality of these will not be too high, and they are all floating on the surface of the river, who knows how much essence has been lost?

Li Yang looked at Li Yuanjing with some confusion, not only did he not be able to make himself idle with such dedication, but he also had to go to Yanzhou?

Li Yang, who wanted to cry without tears, could only follow Liu Hu and silently draw circles in his heart, even Liu Hu was sent out, what else could he do?

Li Yuanjing didn't care too much about Li Yang's thoughts, the use of oil is indeed a big problem, first of all, there is no way to refine, this thing is still flammable, there is no special storage place and equipment, the danger is extremely high, once it catches fire, Li Yuanjing can almost imagine the consequences, he can only wait for it to be extinguished naturally, and there is no possibility of extinguishing it at all.

"Go to Yang San, ask him to partially close the gears, pour these into and turn them to see how it works!" Li Yuanjing directly handed the oil to a guard.

It's better to decide to get the excavator right first, this has nothing to do with the imperial court.

It will be used to build a money village by himself, and it will be used to dig rivers and engage in real estate later, if it is easy to use, Li Yuanjing even thinks that he can consider expanding the scale.

However, the top priority at the moment is to engage in penicillin, but there is a problem that has plagued Li Yuanjing for a long time.

Due to his lack of academic sophistication, Li Yuanjing's understanding of the history of Fang Er is limited to the four words of the green hat king.

What I'm most afraid of now is that if there is a second room in history, wouldn't my current operation be tantamount to a misdiagnosis? What should I do if everything is done and I leave the house behind?

To cut or not to cut?

Forget it, let's do penicillin first, if you don't have penicillin, you don't dare to cut it......