"What? Compass? Gunpowder? Your Majesty, what kind of weapons do you think these are? I have been in the army for many years, but I have never heard of them!"

At this time, Li Qing felt that there was no secret to hide for the generals under his command, so he simply told the matter of the compass and gunpowder.

After he said it, he didn't mean that these two things were almost done, but gave Zhang Chong and the others a reassurance.

Especially gunpowder plays a huge role in promoting the entire historical process.

The gunpowder of China has advanced the process of world history. Li Yan, in his previous life, knew that Engels highly praised China's first role in the invention of gunpowder. Gunpowder shook the feudal rule of Western Europe. The knight class, which once relied on cold weapons to show off its power, has gradually declined! The invention of gunpowder has greatly promoted the process of historical development and is one of the important pillars of the European Renaissance and Reformation.

"You have never heard of it, but you should have heard of the rumors that I admire the Taoist priests after the peace in the Tang Dynasty in recent years?"

As soon as Li Yi said this, the people below immediately stopped saying a word. Indeed, in recent years, Li Yi had sent people to collect some Taoist priests from all over the world to Tai Chi Palace, but he didn't say anything about it. So there were indeed some rumors in the officialdom of Chang'an City. They had actually heard of it, but when they went to see Li Yi, they did not see the so-called Taoist priests, so they could not persuade them.

Now it seems that they are tacit about this matter.

Taoism was always at a relatively high level before the Tang Dynasty or the Tang Dynasty, which led to the popularity of alchemy in China. Alchemy gradually developed, which also reflects the health preservation methods of ancient people.

Alchemists believe that under certain conditions, after one substance is processed and combined with another substance, the advantages of the two substances can be automatically transferred to the newly refined substance.

If mortals take this new drug, they can get the effect. So they want to use alchemy to refine some non-corrosive minerals such as gold and platinum into pills, and then absorb them into the body after taking them. They may absorb their non-corrosive properties into the human body. In order to achieve the legendary immortality.

Although these theories seem to be absurd from the perspective of later generations, they were unable to judge whether they were harmful to human bodies due to historical conditions. However, since the Qin Dynasty to the Sui and Tang Dynasties, alchemists have believed in this. Their alchemist existence catered to many nobles and emperors who wanted to live forever at that time.

In such a big context, the problem that alchemists need to solve is how to make iron ore smaller and softer, and to remove the toxicity in iron ore, and to make it into pills and be easy to swallow. It has become the main content of alchemists' alchemist.

Sulfur in ores is one of the most commonly used drugs by alchemists. It is because sulfur can make the ore area smaller, and saltpeter is a drug used to dissolve metal substances. These two drugs are not essential in the alchemy process. During the alchemist, it is easy to mix these two items together and throw them into the stove, causing flames or even explosions.

After many times this happened, the alchemists concluded that mixing a certain amount of saltpeter and sulfur together in the fire may cause an explosion. The power of gunpowder explosion is very powerful and may injure people.

Ge Hong, a Taoist priest in later generations, wrote in his book "Baopuzi. Fairy Medicine" that the method of using realgar to eliminate the oil and rosin from the pig intestines to make elixirs. Realgar contains a lot of sulfur, while saltpeter is a strengthening agent. Pig intestine oil and rosin contain substances such as carbon glaze, and saltpeter and carbon fire are the basic ingredients of gunpowder. This alchemy formula is actually a basic formula for gunpowder. However, in the Tang Dynasty, this formula has not been truly summarized by alchemists of this era, so Li Wen recruited those Taoist priests, and what he wanted was to see if this step could be done.

In the history of previous lives, Taoist priests had a Taoist priest named Qingxuzi in the late Tang Dynasty. He discovered some artifacts in the making of gunpowder.

The book "The Essentials of Zhenyuan and Miraculous Dao" written by Qingxuzi records the "Fuhuo Alum Method". Its formula is 2 taels of sulfur, 2 taels of saltpeter, and 3 and a half cents of charcoal. Put all these medicines in a jar, burn the charcoal red, and put it in the jar, and smoke will rise.

In his previous life, the "A Brief Introduction to the True Yuan and Miraculous Dao" records that the sulfur realgar and saltpeter are placed in a closed jar and then burned in a fire. The power generated by the explosion may destroy the house.

It can be seen that people at that time could already use the performance of gunpowder to serve humans. In fact, the people of China were there. But gunpowder was rarely used at that time. Although people knew the effectiveness of gunpowder and could explode items, few people used it. Because people at that time were more concerned about alchemy and ignored the effect of gunpowder.

However, in the late Tang Dynasty in his previous life, gunpowder had been used for military purposes. In the previous life, Yang Xingmi's army besieged Yuzhang in the first year of Tianyou of Emperor Zhaozong of Tang Dynasty, and used gunpowder. It was called "flying fire" and "cannons" at that time.

This kind of "cannon" is made into a ring with a thread on it, and then ignited and thrown out with a stone caster. The "rocket" puts a gunpowder ball under the arrowhead, ignites the lead line and shoots it out. During the Song Dynasty, the scope of use of gunpowder became wider. The war turmoil in the Song Dynasty promoted the rapid development of gunpowder, and gunpowder workshops appeared at that time. The use of gunpowder was used to create highly explosive weapons such as "thunderbolt cannons" and "sky-shocking thunder".

In the Southern Song Dynasty, a large bamboo tube was used to load gunpowder into the production of a "surge musket".

By the Yuan Dynasty, "Bronze Generals" were created. These were wars driven by gunpowder, and gunpowder showed its powerful power in the war. In the 12th century, gunpowder was transmitted from China to India, and from India to Arab countries. Then from Arabia to Greece, Europe and the entire world. The Greeks learned about gunpowder by translating Arab books.
Chapter completed!