Chapter 667: Liquid rocket technology

Qin Guo not only developed radio technology, but also made a new breakthrough in technology.

Qin Guo had already used rocket technology as a weapon when he used gunpowder, but at that time the main purpose was military, not aerospace. But with the development of Qin's astronomy, some scientific researchers have begun to explore a technology that can be ascended into space.

However, with the understanding of the atmosphere, some flying enthusiasts and astronomers initially thought that Qin could reach the moon directly with airships and planes. This kind of thinking is simple, but innocence means mental attachment. The maximum ceiling of the aircraft is only more than four thousand steps, and it is a specially modified aircraft. The high-altitude ice prevents the aircraft from reaching higher places. In addition, the engine stalled because the high-altitude oxygen became thinner, and the aircraft could not reach it. Then you can only use hydrogen airships. The airship is too bulky, so the lighter hydrogen balloon is used as a research vehicle for the atmosphere. Persistence is more than just courage. Sometimes you have to pay a price.

Astronomers simply believe that space can be understood as long as there is unlimited lift-off. This directly led to their reckless launch. Even though Shangwen and explained the distribution of the various atmospheres, they still hope to tell each other through their intimate knowledge. The hydrogen balloon eventually lifted into the sky more than 10,000. The two scientists who lifted off at that time had lost consciousness, but a mechanical device recorded their last high altitude record. Finally, the hydrogen balloon burst. The two together with their scientific instruments, The flight log book all fell to the ground. Qin State used an army of tens of thousands of people to search for their remains as much as possible, but in the end they were not found. In the end, only the two things mentioned above were found.

Research always has a price of one kind or another. After that space exploration, Qin's researchers finally realized some preliminary analysis of the space atmosphere based on the final records of the flight log. It was this blood lesson that made Qin's researchers learn to study patiently.

On the other side, Qin's weapons researchers are worrying about one thing, that is, the development of rocket technology has encountered an unprecedented bottleneck. At present, Qin State has been equipped with artillery of various calibers. The range of these artillery has greatly exceeded the range of rockets. On the contrary, the rockets cannot increase the range again because the rockets still use gunpowder as a propellant. At the same time, there was a big disagreement in the selection of the rocket body material. Qin's military requested the use of a cheap and lethal projectile as the rocket material. But the actual effect is that the propelling effect of gunpowder is not very good. The main reason is that the combustion control of gunpowder is not easy to master, and the choice of missile body materials is too heavy. Cast iron materials are used, and lighter aluminum materials are used in aviation aircraft. Therefore, the display of rocket technology has stagnated.

In Qi, the craftsmen of Qi developed a large-scale offensive weapon for the Qi army. The Qi Army has a large amount of guns. However, there is a serious lack of artillery. On the issue of firepower, Qi Jun has been suppressed by his opponents, although Qi Jun has devised many ways to make up for the lack of artillery. For example, to develop the simplest "wooden cannon." But in fact, the actual offensive effect of this kind of "wooden cannon." is not very obvious. The power of wooden guns is not great, and the firing range is very limited, usually ranging from five hundred to seven hundred. This distance is within the rifle shooting range, which can easily be shot by opponents. In addition to wooden cannons, artisans of Qi State also produced bronze artillery, but since no pressure casting method was adopted, the weight of the bronze artillery usually required two cows to pull.

But the Qin State newspaper gave Qi State craftsmen another way of thinking, that is, rockets. This kind of one-time densely fired surface weapon made Qi State craftsmen ecstatic. They think they have finally found another weapon of destruction.

However, the results of the experiment were somewhat unsatisfactory. The craftsmen of Qi State boldly chose a paper tube as the rocket's projectile. The front was made into a cone shape and the rear was a square mouth. The gunpowder was compacted in a circular paper tube and then ignited and launched. It’s worth mentioning that the rocket spout craftsmen did not notice. They have not seen the entity of Qin State's rocket. Therefore, it is not known that Qin's rockets used a tapered nozzle technology. The application of this technology enabled Qin's rockets to reach a longer range, but the people of Qi did not know.

Just when the people of Qi were starting a relatively primitive rocket development plan, the people of Qin made significant progress. Like the people of Qi, the people of Qin also use gunpowder as a propulsion device, but the chemical reaction of gunpowder as a solid fuel is really difficult to control, which has caused great obstacles to rocket technology.

Since the solid fuel reaction is too intense, can you find another fuel that can control its combustion reaction?

The answer is yes. Bai Ge, Qin State's first scientific researcher to propose liquid rocket technology. He has an extremely fanatical fascination with rockets, and he is also an astronomy enthusiast, and his ideas are somewhat wild. Compared with conquering the land, he is more willing to conquer the vast universe, because the astronomical telescope can clearly see the existence of Mars, Jupiter and other celestial bodies.

But how can mankind board these celestial bodies, this is his concern. The shortcomings of gunpowder rockets are obvious. Especially after mastering the combustion chamber technology, Qin State is already very dissatisfied with this backward rocket technology.

As chemical reactions are usually carried out in liquids, he thought of using liquids as rocket propulsion.

Combustion requires fuel and oxygen. Qin’s liquid oxygen technology only exists in laboratories, hospitals, and large steel chemical companies. But just a few are enough to start research progress. The cost of Qin’s rocket research system will be supported until the experiment is successful.

The rest is fuel. Qin’s cars are becoming popular step by step, and the price of gasoline is also very cheap. This is definitely a rocket fuel cheaper than gunpowder.

The experiment began. Bai Ge carefully crafted a rocket engine, using various metal tubes and metal nozzles, and two tanks filled with gasoline and liquid oxygen were exposed. He used a large iron frame as support.

Since liquid is used as the propellant, the rocket can be ignited using electronic ignition.

"Three, two, one. Ignite." Bai Ge excitedly pressed the electronic ignition device.

The fuel is quickly ignited by jetting and igniting the electronic lighter. Then remotely control the valve size. The rocket ejected a "whoop" sound. The tested strength meter showed that thousands of stones of thrust were generated instantly. It succeeded.