Wang Hao handed over the matter of the large rocket to the carpenter, and as for whether he could successfully develop it, to be honest, Wang Hao did not have a score in his heart. Pen % fun % Pavilion www.biquge.info

Before there were no rockets, Hwaseong was either an enhanced version of the Ba Niu crossbow or a later Ba Niu crossbow. On the ground-to-air journey, it was a little weak.

Although powerful enough, the angle and rate of fire are always the biggest weaknesses of these giant crossbows.

The creatures soaring in the sky, their feathers can't be said to be strong, but at least they can't be broken by ordinary bows and arrows.

Although the Tiens did not have feathers on his body, when the Tiens fought against the original sky overlord of Hwaseong in order to compete for the airspace of Hwaseong, he would occasionally bring back some bird feathers from his claws or beak.

When treating the wounds of the Tiens, Wang Hao found that those hostile bird feathers were not only huge, but also very hard.

Ordinary people in the Great Wilderness need a lot of effort to break it.

Such hard bird feathers are superimposed on the body of the bird layer by layer, and the protective ability formed is naturally conceivable.

Of course, this bit of protection ability is naturally not worth mentioning in front of the eight-bull crossbow or ballista.

However, whether it is an eight-bull crossbow or a ballista, it takes a long time to aim.

If the prey is on the ground, it is possible to calculate the amount of advance according to the direction and speed of the prey, and aim in advance.

However, it is too difficult to aim at birds that are erratic in the sky and can change direction and altitude at any time when they are flying around.

In the past, Wang Hao had always wanted to deal with high-level birds with the Tianshi. Now that there are rockets, if ordinary rockets can be strengthened so that they can shoot to a height of thousands of meters, then Hwaseong will have another means to deal with high-level birds.

Although the rocket is not precisely aimed, the approximate hit range is predictable.

If a large rocket is developed, it will be completely possible to carry out cluster attacks at that time.

Hundreds of large rockets ignite together and shoot at the same area, even if the head is not accurate, they can be shot indiscriminately.

The development of a large rocket was left to the carpenter.

There is a specialization in the art industry, anyway, carpenters and gunpowder inventors are almost the same, Wang Hao can only provide a small amount of theoretical knowledge at most in this regard, and there are not many places that can really work, it is better to let carpenters play freely.

The Great Migration is a major event in Hwaseong, but it is not the most important thing in Hwaseong.

The reason why Hwaseong is called Hwaseong is precisely because of the Hwaseong that Wang Hao is building at the moment.

The Great Migration is a method that Wang Hao came up with in order to increase the speed of construction in Huacheng. So, even more important than the Great Migration was the cultivation of black ironwood.

In order to pursue the solidity of Hwaseong. A large part of Hwaseong's walls will be made of concrete.

Because the smelting industry has just started in the Great Wilderness, the technology is not mature, and the smelting of steel bars is not only slow, but also the quality is not up to standard.

Therefore, the steel bars in the concrete are replaced by the hardest black ironwood in the Great Wilderness.

If all the black ironwood on the Li Village side was collected, it would only be enough for a small half of the amount of black ironwood needed in Huacheng.

Therefore, Hwaseong had to plant black ironwood to meet future needs.

Unlike the planting method of arrowwood, the propagation of black ironwood depends on seeds.

The seeds of black ironwood look somewhat like pine towers, but they are slightly harder than pine towers.

The root system of black ironwood is very developed, and the interval between two black ironwood trees should not be less than ten meters at a minimum.

If it gets too close, there will inevitably be a black ironwood slowly withering.

It is precisely for this reason that the cultivation of black ironwood has increased many difficulties out of thin air.

Under Wang Hao's guidance, the carpenter's apprentices made a primitive syringe from hollow thorns, bamboo tubes, the thick skin of the monitor lizard king, and gum.

Mature black ironwood is so hard that hollow spines can't pierce its bark.

But when the black ironwood is still a seed, it is much easier to pierce it.

The tribesmen who planted black ironwood were in groups of three, usually two people and two savages.

The ordinary clansman carried a large bamboo basket on his back, and inside the bamboo basket were fist-sized black ironwood seeds.

The clansman took a step by step, and after taking ten steps, he stopped.

The two wildlings would take the shovels from the cart and dig a one-meter-deep pit where the tribesmen had stopped.

After the pit is dug, fill the pit with half a meter of fertilizer.

The chemical fertilizer used to grow black ironwood is mainly composed of refined bone meal, guano and soil from the Black Forest.

When all this was done, the tribesman would use a syringe to plunge into the seeds of black ironwood and inject half a bamboo tube of oxytoxin into it.

When all this is done, the seeds are placed on top of the fertilizer, and then on top of the seeds, cover with a half-meter-thick layer of soil.

After doing this, black ironwood, which often needs to be buried in the soil for half a year to germinate, now only takes three or four days for black hard buds to emerge from the soil.

The cultivation of black ironwood lasted for two months.

From after the summer flood, it is planted until midsummer.

One-fifth of Hwaseong's territory was covered with black ironwood.

The rest of the place, in addition to grain, is also planted with arrow wood and hollow bamboo.

In the past two months, both Hwaseong and the Western Wilderness have made full preparations for the great migration.

The road from the Western Great Wilderness to Huacheng has been run countless times by the Black Armor Army in the past two months.

On this road, in the past two months, the Black Armor Army has killed a total of sixteen second-level creatures, encountered third-level creatures four times, and fought three times.

Although it has an absolute advantage in weapons, it also has the evolved giant claw dragon as a foot force.

But this group of black-armored troops who were invincible in a hundred battles still caused a loss of fifteen people.

In the past two months, Tiens has made great contributions to Hwaseong.

The Tiens killed a total of three second-level birds of prey and expelled four. The two-month battle has made Tiens grow more than a notch.

Even during the battle, Tiens understood the purpose of its scorpion tail. One of them was a bird of prey, which was stabbed through the head by the scorpion tail of the Liens.

The road leading from the Western Great Wilderness to Hwaseong can be said to be a bloody road.

It's just that Hwaseong shed less blood.

In order to deal with possible accidents on the road, forty black-armored soldiers spent a whole month on the way to dig a cave in a stone mountain.

Then they spent another seven or eight days in this cave, storing enough food for 50,000 people to eat for a day.

If something happens on the way to the migration, this cave may be a lifesaver.