At the end of the day's training, Ren Baqian dragged his tired body back to Pingle Yuan with the "treasure knife".

"You should be given a name. "Ren Baqian pondered it, the Ruyi Golden Hoop Knife?

Ren Baqian grinned, this name is good, if it can grow and grow, it will be called the Immortal Knife.

Ren Baqian felt that he needed a physics laboratory, and this knife would definitely not be able to be sent to the pharmaceutical laboratory. It's a pity that he doesn't have money now, he doesn't have to think about the physics laboratory, how can he not build it with 20 million by himself, even if he can, he is not ready to spend all the money, for the time being, as long as he knows how to use this knife, and then consider studying this knife when he has money after it is listed.

The next morning, Ren Baqian went to the imperial dining room with great interest to find the counselor, and then went to the next hall.

The imperial dining room is divided into two parts, one is the upper hall where he always goes to the empress's meals on weekdays, and now his meals are also in charge here.

The other part is the lower hall that is responsible for the meals of the maids, female officials and guards.

It is also there that the animals that need to be slaughtered in the palace every day.

When they got there, they saw two giant sheep ready to be slaughtered, a wild boar and a scimitar-horned ox. The world calls the wild boar the black-faced king, and the scimitar is similar to the buffalo, which is smaller than the horned cow and is not as good at running as the horned cow.

"Kill with this knife" Ren Baqian handed the broken knife to the person who was about to kill livestock, and the other party looked Ren Fucheng Are you kidding me? This knife doesn't even have a knife tip, and it's so short......

In the end, he was stabbed and slaughtered with a knife that specializes in killing livestock, and Ren Baqian soaked all the broken knives into the blood basin.

The blood of four animals was sucked clean by it in an hour, much to the surprise of the others around it, who used to have a large pot of blood from one animal, but now it was all gone.

Ren Baqian didn't explain a word, he returned to Pingle Yuan with the knife, and as he thought in his heart, "long and long", he saw that the knife was from half a foot long to six feet long, that is, two meters.

Ren Baqian held the long knife and pointed upwards diagonally, and suddenly felt like Sephiroth, with long flowing hair and a leather trench coat.

Not to mention, this knife looks a bit thick when it is a short knife, but when it becomes a long knife, it looks a bit like a horse chopping knife.

However, this time Ren Baqian also found a problem, that is, the knife sucked the blood of four livestock, and the length was not satisfactory.

You must know that the blood you spilled at the beginning made it directly three feet long.

And the blood of the four livestock was all released and absorbed only six feet, if this is the case, the effect does not seem to be as great as I thought.

Could it be that only the effect of human blood is good? Could it be that only the effect of one's own blood is good? Thinking of this idea, Ren Baqian was taken aback.

Think about it carefully, the usefulness of this knife is indeed a bit chicken, slaughtering four livestock in the palace in a day to six feet, at least you have to leave a foot to continue to use next time, five feet of the blade, Ren 8000 in the hand to weigh it, it is about ten catties, more than 3,000 catties a year, better than nothing.

Unless you send it to a slaughtering and processing plant, but there is no slaughtering and processing plant in this world, it is all slaughtered in private. Do you want to build a processing plant outside the city?

If you really want to play the role of this immortal knife, you can only do that.

Another question is that if the knife is not cut, it will shorten after a period of time, I don't know what the reason is, is it really because the blood absorbed by the blade disappears with time? Or is it actually an increase in other aspects of the blade, such as hardness.

Ren Baqian felt that he could try.

The knife is shortened, and the blade becomes half a foot long, and the weight is also decreasing, which is about the same as the weight when the knife was broken before, which is simply magical, and it does not conform to the law of conservation of mass at all.

However, the blade seems to be a little longer than it was before the bloodsucking.

Ren Baqian gestured with his fingers, and it seemed to be a little longer, about a centimeter.

It seems that with the blood sampling, this knife can grow back even if it doesn't take the broken knife back. I just don't know if it will be kidney deficient if it has been cut off for so long.

After some experiments, Ren Baqian carefully put the knife away, and received news that the bricks had been burned, and His Majesty sent him to the Heart Cultivation Palace.

When Ren Baqian arrived at the Heart Cultivation Palace, there were already two people standing there, one was Tong Zhenye, and the other had never seen it, and only then did he know that it was Gongcao Si Shaoqing. The bricks and cement were first intervened by the Ordnance Division, after all, the Jingtian furnace was also under the management of the Ordnance Division, and now the firing of cement and clay bricks is under the responsibility of the Gong Cao Division.

In front of Tong Zhenye, there are several street fighting artifacts - slab bricks.

"Ren Fucheng, do you think this is right?" Tong Zhenye said after Ren 8000 salutes.

Ren Baqian looked up at the empress, and then looked at the bricks with a happy face, the feel was very good, the surface was smooth, and the weight was also very heavy. It's not as rough as modern red bricks, and that's because there's no soot in it. Although it is more troublesome to fire in this way, the quality is the best, and it will not be bad for hundreds of years.

When I smashed the bricks, I saw that the inside was also very dense, unlike the red bricks with soot that were black on the inside.

Ren Baqian carefully inspected it before laughing: "That's it, it is much easier to fire bricks and build them with cement masonry in this way than to mine and polish rocks." ”

Several others nodded as well, and that was indeed the case.

"So be it. The Ministry of Industry seized the time to burn this kind of bricks and cement to build a glass factory, and if there was anything that did not understand, it would go to Ren Fucheng. The empress nodded.

All of them were commanded.

Ren Baqian went back to Pingle Yuan again, took out the drawings of the earth kiln and handed them to Tong Zhenye, the current kind of earth oven burning bricks and cement is too slow, and the number is too small.

If it weren't for the fact that Da Yao was now completely relying on wood for burning, Ren Baqian would have preferred to make a rotary kiln, which would greatly increase the speed of burning bricks and cement.

"It's better to keep the kiln farther away, it's a good place to take the clay. Ren Baqian admonished.

"Why?" asked Tong Zhenye curiously. It was much easier to transport clay than bricks, and most of the artisans would have to live there, and it would have been a little more labor-intensive to transport food and other supplies.

In this way, the consumption of materials and manpower is much greater.

"Otherwise, in a few years, a large amount of burned floating debris will be suspended in the air, and you won't even be able to see the stars when you look up. Ren Baqian spread his hands. It's almost time to shout the slogan that everyone has a responsibility to protect the environment and leave a clear blue sky for future generations.

He didn't want to live for more than ten or twenty years, and every day he woke up in a haze, like a fairyland.

However, it is still difficult for Tong Zhenye to understand, after all, people in this world have never seen what air pollution is.

"Do as Ren Fucheng says. The empress decisively said that Ren Baqian had much more knowledge than them in this regard.

Only then did Tong Zhenye nod in response.

Then Tong Zhenye looked at Ren Baqian with an extremely strange gaze, which made Ren Baqian furious.

"What's wrong?" Ren Baqian didn't know.

"The old man of Ren Fucheng heard some of what Tonglan said, and Ren Fucheng's shamelessness is quite the style of the old man back then. Tong Zhenye stroked his beard and said, with a look of appreciation. But a fool can see that his eyes are full of contempt.

A few days ago, His Majesty recruited Tonglan into the palace, saying that it was a sparring partner, and Tong Zhenye didn't think much about it. Don't look at Tonglan's young age, but it's no problem to hit three or five Ren Baqian with one hand.

But when Tongfu was eating, he asked casually, and when he heard Tonglan say what happened in the afternoon, he sprayed directly.

Not to mention him, even the rest of the Tongfu was shocked.

In front of His Majesty, he was still facing a ten-year-old child, and he was so shameless. Not only did he dare to mention Qinglou, but he could also threaten by saying things like not paying back the money, which was simply an eye-opener.

"Where, Xiaguan is still far inferior to Lord Tong. Ren Baqian immediately looked humble.