"Chang'an? Oh, isn't that the place where our Majesty lives? How can I live in a place like that!"
"Hey, just tell me if you want to get a book for your child?"
Li Sheng complained directly.
I'm feeling a little unhappy. I don't know what's going on lately, but the price of books has gone up ridiculously.
There is no stock market in this era, so it couldn’t have been caused by hot money, right?
No matter how you think about it, some big shot is deliberately causing trouble...
Li Sheng lived in the countryside and had some understanding of the political structure of the Tang Dynasty, as well as internal and external problems. He even understood some key events.
But when it comes to the various names in the court, except for Du Ruhui, Fang Xuanling, Wei Zheng, Qin Qiong, Cheng Yaojin... these are the stars, and he doesn't know the others.
Although he knew that the interest groups headed by various aristocratic families in this era were very powerful, he didn't know which group was where and whose surname was it, and who was the most powerful person.
As a commoner, Li Sheng could only scold Li Er.
No matter who caused the price increase, if you, Li Er, don't care, then your job as emperor will be in vain.
But think about it, Li Er didn't want civil war, so he could only submit a letter.
I don’t know if the idea I gave Lao Li has reached the palace.
It is impossible for Li Sheng to know this.
However, he would ask Ying'er to help buy books in Chang'an from time to time, so he had some knowledge of the market.
For example, the prices have skyrocketed some time ago, and some books have become sky-high prices. Merchants insist that they have goods but say they don't have them...
Also, it seems that several new bookstores and paper and ink shops have opened in Chang'an recently.
The paper, books, and other quality inside are all top-notch.
The most outrageous thing is that the price is so cheap.
Not only is it cheaper than other books on the market that have increased in price, it is even far cheaper than the books before the price increase.
A book used to cost two or three taels, but now...it has become more than two hundred copies.
It is said that such bookstores appeared one after another in all major states and counties throughout the Tang Dynasty...
It is said that the imperial court has recently issued an edict to build official academies of the Tang Dynasty in all major states and counties, and all books can be read directly for free...
Although Li Sheng was curious, he was too lazy to think too much.
the reason is simple--
He doesn’t plan to take the imperial examination!
I bought some books just to read all kinds of information out of boredom, to replace the strange mentality of always thinking about playing with mobile phones after I have been free from work recently...
I bought these books to play on my mobile phone and get some information from time to time.
As for more news, Li Sheng was not interested.
because……
At this time, almost a month had passed since Lao Li was last a guest.
It’s equivalent to knowing Lao Li for two months.
While this "Old Li" was busy, Li Sheng was not idle during this period either.
The reason for the busyness is naturally the several carriages of saltpeter and sulfur that Lao Li helped him get...
That's right, Li Sheng wants to experiment and prepare fire medicine!
…
In the memory of the previous life, the formula of Black Fire Yao was not complicated——
If it was really complicated, it wouldn't be so widely spread, otherwise most people wouldn't know so many chemical formulas.
Of course, the black fire yao made by Li Sheng is not that superficial.
From the purification of saltpeter and sulfur to the precise mass ratio obtained based on chemical formulas, this is much more advanced than the black fire medicine that was born in the Song Dynasty.
The power is naturally extraordinary!
Of course, this is just Li Sheng's expectation at the moment, and theoretically the power should be extraordinary.
But Li Sheng was not satisfied with this, he wanted to do something stronger.
It is also a derivative of Black Fire Yao - Compressed Black Fire Yao!
Compressing the same amount of black fire yao to half of its original size will double the density of the compressed black fire yao.
But in fact, doubling the density will increase the power far more than twice, but four to five times!
That's what fire yao is, a small increase in some basic attributes can lead to a substantial increase in final strength.
Not to mention the density doubled.
But the formula of this compressed black fire yao is different from ordinary black fire yao.
The recipe needs to add something else.
Not only that, the compression work itself is definitely a technical job.
If it fails, it will at least fail to detonate, or its power will be greatly reduced, which is far inferior to the original ordinary black fire yao, and is almost equivalent to a misfire.
More importantly...
Think about the brothers and uncles of Nobel, the great master in the field of chemistry...
Therefore, Li Sheng must make thorough preparations and cannot start lightly.
Furthermore, Li Sheng also needs to try the additional materials needed to compress the black fire yao - how could he know about this kind of thing in his previous life? It would be good to have an impression after hearing about it.
After this period of time, Li Sheng tried repeatedly, first ordered several materials, tried various configurations one by one, and finally came up with a formula that passed the test.
This material is high-purity iron powder. Although it is extremely difficult to obtain, fortunately, it does not require so much. Li Sheng contacted the best blacksmith in Youzhou City and paid a lot of money to give him a booklet on the forging method.
It took the blacksmith a full month of work around the clock, and he finally got a few kilograms.
On the way, Li Sheng improved the charcoal in the village and used better methods to obtain higher quality charcoal.
Toner upgrade, formula upgrade!
Compression, process specification upgrade!
On this day, Li Sheng finally made more than five kilograms of compressed black fire yao...
I took it out to prepare for the experiment, and happened to meet Lao Liutou.
The two exchanged pleasantries for a while, and then Li Sheng continued to go out to find a place to experiment.
but……
At this moment, Li Sheng was about to lift his legs and leave to find an uninhabited wasteland to test the five kilograms of dangerous objects, when he heard a call from behind him.
"Master, Master, please slow down!"
"Ah?" Li Sheng turned around in surprise, "Mian'er? What's the matter?"
After I became a member, the house basically resumed its function as a house—a place for living.
Although I have been working on this scientific research project on compressing black fried yao recently, but...
This thing has been brought out by myself, and the surviving ones in the house are wrapped in oil paper and dropped into a dry well to prevent accidents.
Generally speaking, nothing happens at home.
Mian'er was suddenly so anxious...could it be a fire?
Li Sheng frowned and turned around to approach, Mian'er also ran over.
"What's wrong? But there's a fire at home?"
"Wait a minute, aren't the Turks coming to plow the valley again? I'm ctm..."
"No, haha... Young Master, you got distracted. It's Mr. Li and the others who are here!"
Mian'er had a smile on her face and was panting.
Li Sheng then remembered that Lao Li hadn't been here for a while.
Since there are guests coming, the explosive test can naturally be slowed down. Li Sheng nodded, "Then let's go back quickly. We haven't seen them for a long time."
Li Sheng also wanted to ask them if they knew any good craftsmen so that he could get some pure iron for himself!
After a while...
Li Sheng returned to the door of the house, and saw Lao Li and others standing in front of the door waiting in the distance.
Different from the sad faces when they came last time, this time Lao Li and others all had smiles on their faces. When they saw Li Sheng, their faces were full of smiles, just like children celebrating the New Year!