Before Chen Lin's birthday, Chen Zhi sent a thousand catties of iron to King Xu's mansion.

Of course, he also took five coal stoves from Han Shan, and also got ten "briquette machines" that came with it for free, but after weighing the weight of each coal stove himself, Chen Zhi was particularly upset.

He thinks too highly of this so-called coal stove!

Originally, I thought that since the lion opened his mouth, would the king make the coal stove for himself more exquisite and larger, but after getting it, Chen Zhi found that this thing was about thirty catties, and the iron material used was only twenty catties at most, which was a big loss!

Even if he knew the reason, he couldn't stop Chen from joining the army......

……

"To put it bluntly, the technology is still too bad!"

also saw the coal stove newly built by the blacksmiths, and Li Yuanjia was also a little congested.

Too thick and too heavy!

He still remembers the kind of coal stove he used when he was a child in his previous life, small and small, saving place and briquettes, but in the seven years of Zhenguan, the coal stove built by the blacksmiths of the palace is much larger, not to mention, the iron sheet is also thick and heavy, wasting at least twice the amount of iron!

"Therefore, the popularization of this coal stove has a long way to go!"

Thinking of the pitiful pig iron production and price in this era, and then thinking about the income of ordinary people in a year, Li Yuanjia couldn't help but sigh secretly. Not to mention more than a dozen catties and twenty catties of iron, even if it is one or two catties of iron, whether the people at the bottom can afford it, or whether they can buy it is another matter.

After all, now Datang only produces a few hundred tons of iron a year, which is average to everyone......

Li Yuanjia was congested here, but Han Shan next to him didn't understand this kind of worry, so he just asked in a low voice: "Wang, these coal stoves, as well as those tables, chairs, and willow charcoal...... I'm sending someone to the King of Wei now? ”

"Well, send it!"

Nodding, Li Yuanjia said lightly: "By the way, send someone who knows how to go over and help King Wei install the coal stove!" This substance is easy to be carbon poisoned if it is not used properly, and it must be explained clearly to King Wei, and you must not be careless! ”

"Yes, King!"

After understanding what Li Yuanjia meant, Han Shan responded respectfully.

This King of Wei is not the famous Wei King Li Tai in history, but Li Yuanjia's half-brother Li Lingkui, the King of Wei, Li Yuan's nineteenth son. Li Yuanjia, who is not very good at history, was also taken aback at the beginning, and then thought that Li Shimin was going to have a big rotation of the princes in the future, maybe it was at that time that the current Yue King Li Tai became the King of Wei, and the current King of Wei Shu Yu became a king who didn't know.

However, for this younger brother, Li Yuanjia really likes it.

Although the kid is four years younger than himself, he has shown talent in music and calligraphy since he was a child, and he is good at cursive and official calligraphy, and his musical talent is quite high......

In other words, Li Yuanjia has already discovered one point, that is, these people in the old Li family seem to have quite artistic cells.

Li Yuanjia himself is good at calligraphy and painting, his younger brother Li Lingkui is also good at calligraphy and music, and Emperor Li Shimin is also good at calligraphy. In addition, as far as Li Yuanjia knows, at least half of his brothers and brothers have an "artistic atmosphere", and the level is not low!

Talent is one thing, but more important is the environment in which these princes grew up.

Since I was a child, I have been guided by famous teachers with all my might, and I never have to worry about the constraints of my teachers, and I don't have to spend time helping my family work......

Well, that's a long way off.

Nearly a year after coming to Luzhou, Li Yuanjia received a letter from Li Lingkui, which finally reminded him of his brother, who had a good relationship. So he immediately ordered the housekeeper to pack up a bunch of good things and send them to Li Lingkui, who was far away in Chang'an.

Although he had already sent a few copies to the Emperor Taishang and the imperial concubine, and vaguely guessed that Li Shimin had already obtained these things, Li Yuanjia knew that even if the emperor would copy them in large quantities, he would definitely not be able to take his brother's turn in a short time, so he simply sent him one.

But......

"Alas......"

After Han Shan was ordered to leave, Li Yuanjia stayed in place for a long time and sighed heavily.

In the family letter of his brother Li Lingkui, the situation of his mother Yuwen Zhaoyi was mentioned without accident - the condition was good and bad, but it was obviously difficult to get better. In the past half a year, three of the six months have been lying in bed, and the rest of the time can only be taken care of by the palace maids, day by day.

As for the relatives around the concubine......

Don't talk about it, the emperor will definitely not care about an imperial concubine, and Li Lingkui, who is in Chang'an, wants to see his mother, I'm afraid it's not an easy thing.

Thinking that after the relationship with Li Shimin eased a little in the previous two years, the cheap father became wider again, and began to mix in a group of beauties every day, and even added a future bastard brother Li Yuanying to himself two years ago, Li Yuanjia didn't have any hope.

"As soon as you enter the palace gate, it is as deep as the sea......"

Thinking of the amiable face in his memory, but often looking out the window in a daze, Li Yuanjia sighed deeply, took out a pen and paper, and began to write a reply to his brother Li Lingkui......

……

"It's all the things from before, and they've been sent to King Wei."

While carefully following behind the emperor, Li Jian reported carefully: "In addition, there are some gifts for the imperial concubine, which are all trivial things that are filial piety, but there are no unusual objects, just ......"

After a pause when he said this, Li Jian continued: "After writing the reply to the King of Wei, the King of Wei has not eaten for more than a day!" And this time, he didn't even take a sip of water. ”

"Huh?"

When he heard this, Li Shimin's brows suddenly wrinkled: "I haven't eaten for more than a day?" What's going on? ”

After swallowing and smearing, Li Jian immediately replied: "Back to Your Majesty, King Yu should still be worried about the imperial concubine's condition." In the letter written by King Wei, there should have been a mention of the illness of the imperial concubine, which is why King Yu was so sad. ”

After saying these words, Li Jian immediately closed his mouth tightly.

The emperor's concern for the king of Yu who was far away in Luzhou, he became more and more incomprehensible. If it is because of Qu Yuan plough, in fact, Li Jian is understandable, after all, that thing is really important to the Tang Dynasty, but when King Yu sent the last batch of Qu Yuan plough, the emperor actually asked Li Jian to pay attention to the news in Luzhou from time to time, and occasionally ask in person in his spare time, which made him a little difficult to understand.

There are several princes out of the cabinet, and I haven't seen the emperor care so much about anyone!

After standing for a moment, the Emperor finally lifted his feet and walked on. It's just that while walking forward, Li Shimin sighed in a low voice: "Yuanjia is pure and filial, this is pitiful......"