It’s good to have magic, but Li Xian no longer needs help from others. He easily made several simplified versions of the lights. Of course, there are many problems with such simplified versions.

For example, if it is ugly, the air in the light bulb is not clean.

"Fortunately, using stainless steel as filament can be used for at least a few hours, and experiments are enough, just to show the local bullies that they are rare. With jade lamps, it is difficult to have a market for electric lamps for the time being."

When Li Xian returned to the laboratory with a few electric lights, he was stunned. What did Li Xian see? He saw two wires that were thick and thin together! Yes, Li Xian is sure that it was the wire, but it was not the worst quality linen, but the most advanced silk.

Two thick "wires" extend out from a one-meter-sized "Sixiang Generator", and are buried in two large pits, one in the south and one in the north - or in the mine.

The wires are thicker than the "generator", which is a big eye!

Even so, these "researchers" were far away from the wire and dared not get close to each other.

I... am convinced! Li Xian just felt that crows were flying all over the sky, covering the sky and the sun; if you were afraid of lightning, the cultivators were definitely the best. But it was strange that you were afraid of being like this.

"Everyone comes here, come here, I'll spread the knowledge about electricity for you!"

Needless to say, Li Xian began to explain the relevant knowledge, common sense, etc. of electricity, electromagnetic induction, electromagnetic eddy current heating, voltage, safety voltage, current, and resistance; of course, electric lights are indispensable.

But Li Xian also encountered a problem. What units should the voltage and current and resistance be expressed in? Obviously, this unit cannot be copied directly, and the definition of voltage and resistance are also different.

In the end, Xu Ren made a suggestion that could barely be accepted by everyone. Voltage is represented by 'thunder'; resistance is represented by 'flash', and current is of course "electricity".

Regulations: The voltage of the first successful four-synon generator is set to 100 voltages, the energy output is equivalent to 100 currents, and the resistance is 100 resistors; the rest is just like this. (These two sections can be omitted)

With electricity, everyone immediately made a simple model of an electromagnetic eddy current heating furnace, and used an experiment to heat a little iron block through electromagnetic induction; the results shocked everyone.

"It's so amazing. There is no spiritual fluctuation at all. The iron block actually melts!"

"Is this electromagnetic force? No wonder the young master asked us to swear to keep it confidential."

"This electric light is also amazing. Electricity is really amazing. Master, can electricity replace spiritual energy to practice? And if you use electricity to practice, do you not have to be afraid of the punishment of heaven?"

This is a good question! Li Xian also had to admire this person's association ability. Everyone looked at Li Xian again, with expectations in his eyes: Yes, if you use "electricity" to practice directly, of course you don't have to care about heavenly tribulations such as thunder punishment; and thunder punishment accounts for almost 70% of the heavenly tribulations.

Li Xian smiled bitterly: "Don't look at me, I don't know, but I'm looking forward to it too; everyone can study it if you have time, but be careful, don't encounter the 'Heaven Tribulation' in advance."

Li Xian's teaching lasted for more than five days. After understanding the basic problems, everyone was ready to start studying the first "ultra-high temperature, melting furnace that imitated the sky fire". Everyone's enthusiasm for work was extremely high, and their expectations for the future were unprecedentedly strong. The concept of using electricity to practice directly was laid down!

For a moment, the entire Qingyun Valley was filled with joy like colorful clouds.

"In 30 days, overcome the wire problem!" This is the slogan of the laboratory hanging on the wall.

While everyone was studying the wires, Li Xian finally took a break from his busy schedule and thought of gunpowder - or Li Xian had thought of gunpowder for a long time, but he had been busy studying the wires some time ago, and he couldn't take care of it. Now he finally has time and is ready to put gunpowder on the agenda.

Although there are practices and magic in the Immortal Realm, the power of gunpowder cannot be underestimated. At least sniper rifles still have a fatal threat to the Foundation Establishment Stage and a considerable threat to the Golden Elixir Stage; flying with swords and killing people from afar are magical means of the Golden Elixir Stage, but they are not as good as shells. Therefore, after repeated calculations, Li Xian felt that if he had a gun and cannon army, he could almost run rampant in the Daxia Kingdom and even the eastern part of Yingzhou.

Gunpowder is very simple, Li Xian completed it quickly, and the explosion is very powerful.

But Li Xian always felt something was wrong, but he couldn't say anything wrong. After thinking about it, he finally found Xu Ren for advice and even brought some finished products he made.

"This gunpowder technology must not be developed!" Xu Ren cut off Li Xian's idea at the first time. "Think about it, it took only how long you made the colorful lanterns, and someone imitated it.

And the ingredients of your gunpowder are clear at a glance. The monks in the Foundation Establishment stage will understand the ingredients after a simple study. After understanding the ingredients, your guns and cannons will soon be imitated. After all, the ingredients of gunpowder are everywhere!

What should you do then?"

"Ah!" Li Xian finally realized, Damn, I forgot this. Yes, gunpowder technology is easy to imitate, so gunpowder technology must not be developed. There are still some troubles in the world of cultivators!

However, Li Xian did not give up the idea of ​​sniper rifle; gunpowder is not good, there are also chemical explosives such as TNT, *******, chewing gum explosives. However, it will take a long time to wait for the current industrial system to be complete before we can let go of our hands and feet to develop chemical matters.

But Li Xian had too many things in his mind, in addition to gunpowder, there was also...

"Sir, I have another thing here, called concrete, which is an item developed from dust from the earth lung outlet (crater)."

As he said that, Li Xian told him about the concrete situation.

Finally, Li Xiancai asked, "Sir, I think everyone uses magic to build walls. Do you think this concrete has a future for development?"

This time Xu Ren finally looked ecstatic, "Good thing! Young Master, think about it, what are the characteristics of the walls of Wuyang City and the walls of Anyang border? What are the characteristics of the walls built with magic?"

"Features? Well..." Li Xian thought hard and finally thought about it. The city walls and military fortresses were all "old", and the city walls were all made of huge rocks. On the other hand, the walls built with magic seemed smooth and very new.

One is very old and the other is very new, which is obviously different and problematic.

Seeing Li Xian's sudden enlightenment, Xu Ren smiled slightly: "Thinking of it! The wall formed by spells is very short and is easily destroyed by spells. When the power of spells is exhausted, the wall will collapse.

It is only because the spells are built quickly and costly, so they are widely used, but they will only be used for low-level construction.

Important buildings, such as borders and palaces, are still built with huge stones. Moreover, the city walls built with huge stones can also be attached to defensive formations; while the walls built with spells cannot continue to be attached to the formations.

If you can really make concrete, it will definitely be very popular. Not to mention anything else, just saying that concrete can be poured at will, you can bury many defensive formations directly in the wall to make the formation stronger.

Moreover, concrete can also add steel bars, fill gaps, repair old city walls, bind stones, and use them anytime, anywhere.

I can tell you with certainty that concrete will inevitably sell well. Even if it is not done well, it will cause great trouble!”

Li Xian's eyes became brighter and brighter, and finally he continued: "The ingredients of gunpowder exist in nature and are easy to crack; but the concrete is fired, and the ingredients are mixed and difficult to crack!"

"Yes. So, hurry up and act."

"good!"
Chapter completed!