Li Chengqi knew how to use gunpowder, in addition to making a large sky monkey, he could also throw it in a catapult.

During the siege, the oversized catapults were erected, and the enemy had to use bed crossbows against the same catapults.

"Brother Yi, make a big bag, put iron pieces and ceramic pieces in it, calculate the time to throw it up, and pour a piece with a bang."

Li Chengqi didn't need Li Yi's introduction, he had already thought of it himself.

"The defense was advantageous, and I designed a small catapult that could turn, called the Whirlwind." Li Yi said and turned around.

Qing Song took out a few pieces of paper from his satchel and handed them to Li Chengqi.

The Whirlwind Cannon is a small catapult capable of rotating 360 degrees, with a wheel underneath.

When defending the city, it is condescending, and the range is longer than throwing it from the bottom up.

The Whirlwind Cannon fires quickly, and it is easier to calibrate the direction and distance at the same time, making it easy to use siege weapons against enemies.

This is not the whirlwind cannon that was invented by rotating centrifugal force during the Three Kingdoms period.

He was a mobile unit that was studied to deal with the enemy during the Song Dynasty.

Especially the cavalry, the stationary catapult cavalry did not go there.

"This catapult is good, the back is not a spoon, it is a pocket, if it is missed, you can find the position by turning it slightly."

Li Chengqi admired the drawings, which were simply a work of art.

At dinner in the evening, Li Longji came back a little late, and there was a fragrance on his body, so he went to take a shower first.

The main dish tonight is called flower chicken, Zhuangzi kills a batch of chickens, and if he doesn't kill them, the meat will not taste good.

The summer is too wilting, and the egg production is not as good as that of the chickens of the companions, and it is on the list of 'gods and goddesses'.

This kind of stewed chicken has less moisture and is not as hot as a roasted chicken.

Zhuangzi did not adopt the method of pouring wine alive, and put spices or something in the wine to become cooking wine.

Then the chicken is poured down, and the chicken is drunk, and at the same time, the blood circulates and the seasoning is easier to absorb.

Instead, they killed as usual, bled out, and kept chicken blood and chicken offal.

The head and feet of the chicken are not put together, and the tip of the chicken is removed.

Then put the seasoning in the belly of the chicken, smear it with wine, and wrap it in mud with lotus leaves.

Next, it is slowly heated with charcoal in a large earthen stove, without digging a pit and burying it.

The one that dug the pit has to be burned for a long time before it is cooked.

A chicken called Hua smashed open, and the incense came out, and Li Longji tore off two wings and a chicken thigh for Queen Wang.

Queen Wang didn't take chopsticks, she grabbed them directly and took a big bite.

"It's delicious, it's the first time I know it, and I can cook with chicken wrapped in mud." The queen was full of praise.

"This year, a lot of lotus leaves were harvested, all of which were dried in the shade, and some green vegetables were made into plum vegetables.

This year, the people of Chang'an have a lot of income, and it is written in the newspaper that everyone is asked to collect more vegetables, dry them in the sun and in the shade.

The price of salt this year is very low, and it will not rise in the future. People elsewhere, let's talk about it later. ”

Li Yi knew that many people did not have time, and time was thrown into the ground.

There is a problem with the distribution of fields, one person gives so much, he can't plant it, and he has to collect rent according to the acre.

If there are cultivators, seeders, combine harvesters, and pesticide planes, 10,000 acres can be planted.

"Third brother, Brother Yi took out good things today." Li Chengqi didn't want to think about what life the people lived, he couldn't help it.

"Good stuff?" Li Longji repeated.

Li Chengqi took out the drawings and showed them to Li Longji: "Make a bag of gunpowder, and put a circle of sharp things on the outside." ”

"Okay, can you put a wheel down there? It is easy to move, able to drag and run, and cooperate with the movement of troops.

Even if the infantry encounters the enemy's cavalry, it has the power to fight, and if it cooperates with the cavalry, it is even more powerful. ”

Li Longji read it quickly and had his own thoughts on this.

The wheels are installed under the cyclone cannon, and it can be disassembled, and it is a car that pulls its own car.

If you pull it with livestock, you can also bring some grain and grass.

One or two can't embody the effect, but hundreds or thousands are different.

"There is a lot of saltpeter in Shudi, and we must increase mining efforts. There are also places for livestock pens, latrines, and manure, and they take soil and boil saltpeter. ”

Saltpeter has a large proportion in black powder and consumes a lot.

If the people all go to help collect nitrate, there can be a lot.

"It's a good way, I go to the book, the court buys it from the people, and the war is to make money." Li Longji finally said a famous sentence.

Gunpowder is easy to use, but it also costs a lot of money.

"Brother Yi, don't sell firecrackers and fireworks yet, keep them and use them in the war."

Li Longji also talked to Li Yi about the issue of strategic reserves.

"Well, the guns are not sold, and the Zhuangzi is not short of this money." Li Yi agreed.

It's a shame to have a beautiful firework in exchange for the life of an enemy.

Black powder is actually a transitional product in Li Yi's opinion, and he can get nitroglycerin out now.

As long as he wanted, he could make most of the gunpowder in the hospital with the help of equipment.

But it didn't make much sense, it was enough in the Black Powder War, and the rest was going to be used for mining and road repairs.

The role of road construction is not only for trade, but also for the stability of the country.

From Chang'an to Leizhou, the road conditions are good, and the cavalry can arrive in half a month, which is not at all the same as the situation where the army cannot reach in three months.

Li Longji couldn't imagine that his Yi brother was so good at saving people, as powerful as killing people, and he had a lot of skills.

He was in a good mood, thinking that a large number of weapons of war would be sent to the border gates.

Some were used in the city to guard against the Turks, and more were carried to fight Tibet.

The queen was also interested, wiped her hands, and took it to see.

"Oh, this little catapult, operated by a few people, uses gunpowder, and is much more powerful than a bed crossbow.

Bed crossbows only have a long range, cannot be equipped in large quantities, and are not easy to transport, especially arrows.

For this arrow, the range and flight stability are the most important, and it is even better if it can hit the enemy and pull it out. ”

Queen Wang is worthy of being from a family of military generals, and she ponders this thing all day long.

Li Yi was stunned for a moment, and then said: "There is a kind of arrow with wood as a feather, and in the middle is a thin iron bar at the front end, which is very pointed.

Because it is a balance wing made of wood, it flies farther and enters the body with the front end after hitting a person.

The back falls off and breaks off as soon as it is pulled out, and the front one is still in the body, so it can only be cut and clamped out with pliers. ”

He said something from another Song Dynasty, Mu Yu Arrow.

The body of the wooden feather arrow should be three sections, with a metal section in the front, a bamboo in the middle, and a metal one in the back, with small wooden wings.

If the back is too light, the arrow will sink and it will not be easy to fly.

In the middle is bamboo or wood, and after shooting the person, follow up to go to the part.

It was put on top of the front and back, pulled outward, and detached, and the metal in the front was in the body.

The arrows are thin, the head is hard, and it can pierce armor.

"Uncle, you draw it, let's take a look." The queen didn't want to eat.

Li Yi had no choice but to find an empty table and sit there to draw the structural drawing.

There are four parts in total, the front, middle and back of the arrow shaft, plus the small wooden wings next to it.

This is the ancient armor-piercing bullet, all the useless places fall off after the fight, and only the last place is left to pierce in.

Li Chengqi saw it and muttered: "This, this is too yin, good, good thing." ”

Li Yi drew another one: "In fact, this wooden feather can be made into a spiral rising shape, flying out to rotate faster and more stable, and hitting the target to increase penetration." ”