The date of the beginning of the Great Migration has been set. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

What made Wang Hao happy was that ten days before the date of the Great Migration was set, the carpenter finally developed a large rocket.

The shafts of large rockets were made of black ironwood. The arrows, on the other hand, are still metal arrows, mainly because metal arrows are relatively sharp and can easily penetrate enemy defenses.

This large rocket, after testing, is three meters long, weighs 15 pounds, and has a range of more than 3,500 meters for flat shooting, but if it is fired directly into the sky, the firing distance cannot be counted. However, it is conservatively estimated that within 1,500 meters, it can penetrate the defenses of high-level creatures.

This kind of enlarged rocket was independently designed by carpenters.

In the beginning, if the gunpowder was overstuffed, the bamboo pipe filled with gunpowder would explode.

But if there is too little gunpowder and the arrow shaft is too heavy, you can only fly out of ten or twenty meters away with the arrow shaft.

Later, after determining the maximum dose of gunpowder, the carpenter came up with a solution, which was to tie three gunpowder tubes to the shaft of the arrow in a three-legged shape.

And three gunpowders, when ignited, will produce thrust at the same time.

The results of the test were encouraging, and the thrust produced by the three powder tubes was not the result of one plus one plus one equaling three.

Its power is stacked several times over.

In that test launch, the big rocket flew four or five hundred meters at a time.

After seeing this method in action, the carpenter's mind was opened.

What can't be done with one powder tube, you can use three by yourself.

So what can't be achieved by three gunpowder tubes, does it mean that you can accomplish it with six, or even nine?

Later, the carpenter tried to tie six or even nine powder pipes to the shaft.

It's just that as the number of gunpowder tubes increases, so does its weight and volume. Naturally, the wind resistance it is subjected to is multiplied.

In the next test firing, the distance shot by six or nine powder tubes is not as good as that of three powder tubes.

The results of several shots by the helpless carpenter were like this, and Wang Hao, who later learned the news, made a point based on the experience of the multiple ignition of rockets flying to outer space on the earth, in this case, why not divide the number of ignitions into two or three times.

Three rows of gunpowder pipes were tied to the shaft.

The first to ignite were the three gunpowder tubes at the bottom.

When the gunpowder in these three tubes is burned, the lead is ignited and then falls off on its own, reducing the weight.

At this point, the three gunpowder tubes tied to the middle of the rocket will be ignited and continue to provide the rocket with forward power.

And so on, when the three gunpowder tubes in the middle are burned, the top three gunpowder tubes will be ignited.

After more than a week of testing, the carpenter who listened to Wang Hao's suggestion was like an initiation, and finally made a rocket that could fly thousands of meters.

And after testing, the carpenter found that when the gunpowder tube on the rocket was nine three layers, it flew the farthest.

If it is six, the rocket is not powerful enough and can only fly flat for kilometers.

If the number of gunpowder tubes exceeds nine and reaches twelve, the weight of the rocket will be too heavy, and the final shooting distance will be less than the distance shot by nine rockets.

Since the large rocket has been successfully developed, the next step is mass production and put into use.

Large rocket cars, because of their size, cannot launch 400 rockets at a time like small rocket cars. It was tentatively set to launch forty rockets.

Before the Great Migration began, ten large rocket carts, plus eight hundred rockets, were driven out by carpenters.

This is also the reason why the wooden sheds of more than 60 villages have been made, and the carpenters of Hwaseong have their hands free.

Otherwise, the two sides will start construction, and these 800 large rockets will not be able to be produced in any way.

The stakes of this great migration are very important, except for the construction of Hwaseong, the rest of the things are not as important as it.

As the most powerful combat power in Huacheng at present, Gu Mu handed over all the government affairs in his hands, and together with Wang Hao, accompanied by the first batch of black-armored troops who transported grain, according to the agreed day, he went to the vicinity of the snake cave to meet the tribes that migrated from the Western Great Wilderness.

In the middle of summer, the sun is scorching. The sun in the sky is extremely scorching. In the air, you breathe a heat wave.

On the back of the giant clawed dragon, there are two wooden frames that are like scales. On top of the wooden shelf, a large number of pancakes are piled up.

Fortunately, Hwaseong's Megalocosaurus is a Megalocosaurus that has evolved from eating super thatch.

Ordinary clawed dragons, in such a hot weather, carrying such a large pile of things, I'm afraid they can't walk.

In order to reduce the burden on the Giant Clawed Dragon, the Black Armor Army all walked on foot, trotting to follow the Giant Clawed Dragon.

Even some of the black-armored soldiers, in order to reduce the burden of the giant clawed dragon, even carried drinking water on their backs.

The biocarapace has a certain ability to protect against the sun and heat. However, black color has a strong ability to absorb heat.

The black armor on the black armor army really makes them love and hate at this moment.

When they walked unobstructed in the scorching sun.

The black armor on his body is like a red-hot iron plate, and the hot person is unbearable.

However, if you pass through a mountain col or a small forest, in the shade, a light wind blows, and the temperature of the black armor can drop by more than ten degrees in an instant.

Under such a hot and cold situation, fortunately, it is the black armor army whose physique has been strengthened to an inhuman state, and if it is replaced by ordinary people, it has to be sick.

Before leaving, Linglong may have sensed that Wang Hao was going to leave for a while.

This time, no matter what, it will follow Wang Hao.

It's just that the current Linglong has grown to the thickness of a bucket, more than ten meters long.

With such a huge body, Wang Hao can no longer take it out of the house as he did at the beginning.

Snakes prefer shade, and if Linglong can't hold on to it and is unwilling to move forward on the way, it will be troublesome.

I don't know if it's because it's too young, Linglong hasn't evolved its language system yet.

The four Gollums struggled to convey Wang Hao's meaning to him.

It's just that this time Linglong is determined to go out with Wang Hao.

In desperation, Wang Hao could only bring Linglong this time.

Although her body has become larger, Linglong's ability to change color has not disappeared.

After being exposed to the sun for a while, Lingling cleverly turned her body transparent. Even its bones, its flesh, had become transparent.

Then, the sunlight can only penetrate its body, and cannot retain heat in its body.

Although Linglong's growth rate is amazing, this does not change the characteristics of being a cold-blooded animal.

After the body became transparent, the temperature on its body was more than ten degrees lower than that next to it.

The hairball naturally discovered this for the first time, and lazily lay on Linglong's body, cooling down with the help of Linglong's body temperature.