Great Tang princess

It is easy to say that it is easy to artificially manufacture magnets, but it is not that simple.

The next afternoon, Li Yuechen came to the Engineering Academy. Under her command, the craftsmen worked together to make an arm-length iron ingot and a few meters long copper wire.

After finishing it, he held it in his hand and looked at it, then nodded in satisfaction.

Whether it will be successful or not, we can only wait until after the experiment. Since we can't find a satisfactory natural magnet, we can only make it artificially in the end.

Seeing Her Royal Highness nodded in satisfaction, an academician asked, "Your Highness, is it that simple?"

"It's not over yet, remember to paint it, and then wind the copper wire up like I did..." Li Yuechen explained and demonstrated to them.

Geng Yunqiang at the side felt strange, why did he ask himself to come over for such a simple thing?

The craftsmen were also puzzled, and everyone came to look at it for a whole afternoon just because of such a thing. Could it be some novelty that they couldn't understand?

After the demonstration, Li Yuechen put the wrapped iron ingot on the table: "Just follow this, and make more."

"May I ask Your Highness, how much do you want?"

"Say less than fifty!"

Li Yuechen's words made the craftsmen unable to react, and they all froze in place, wondering why they needed fifty of these things.

In fact, there is no way to do this. After all, there is no way to control such things as thunder. If you only make one, no one can guarantee that you will be able to hit it.

Then he turned his head and gave an order to Geng Yunqiang: "After finishing, wrap these iron ingots around wooden sticks and insert them at the highest point of the surrounding mountain tops. On weekdays, people should be guarded, and no other people or wild animals can be allowed to approach. Remember, Once there is a thunderstorm, the people around must immediately withdraw fifty meters away, and if this object is struck by lightning, remember to take it back..."

After roughly explaining the function, Geng Yunqiang quickly agreed, and his expression became obviously solemn.

Although this gadget looks inconspicuous, but now that it has reached the step of attracting thunder, it may be some kind of weapon that is more powerful than artillery.

In fact, there were rumors in the palace in the early years that the princess could make Thor obey orders, but after following the princess for so long, Geng Yunqiang also began to move closer to the direction of materialism, and the first thing he thought of was to make weapons.

In fact, Li Yuechen is not a complete atheist, after all, there are indeed many things in this world that cannot be explained by science.

Not to mention, there are many cases of miracles in the circle of athletes.

An athlete was injured during a competition. After various diagnoses such as X-rays, the doctor said that the fracture was broken and he could no longer participate in the competition, and there was even a risk of disability.

However, the athlete was unwilling to give up easily, so he continued to train despite the injury. During the pre-match physical examination, he found that he was completely healed.

There are not many cases of this kind, but it does happen occasionally, whether it is their own genetic problems or the result of praying to God and worshiping Buddha, but at least it can show that there are still some mysterious abilities in this world.

Having said that, it is not only Geng Yunqiang, most people in the army are gradually changing their thinking towards materialism after education. …

With knowledge, the ability to distinguish many things will naturally become stronger, which is a natural result.

……

After leaving the engineering institute, Li Yuechen was thinking while walking on the playground. It is the second half of summer, and then autumn will come. There should be no less rain. If everything goes well, you can try to make other parts of the generator now. equipment.

If the artificial magnet can be made by then, the generator experiment can be carried out before this year.

But there is still a problem, what form should power generation take?

Judging from the current era, it is obvious that human power generation is the easiest to appear. After all, there are still so many captives who can be used to do such tedious physical work.

But this idea was rejected by Li Yuechen as soon as it popped up.

No matter whether it is human or animal power, as long as it is a living thing, it is impossible to work non-stop all the time. It always has to sleep and rest, so it is still necessary to consider other aspects.

Hydropower...no major rivers nearby, don't consider it.

Thermal power generation... no.

The only thing Li Yuechen can think of now is wind power generation.

Especially since it is located by the sea, the sea breeze is blowing all year round. If some large fans can be placed on the nearby hills, wind power generation is indeed possible.

Anyway, now that the bearings are available, the fan can still be made. The only downside is that there is no machine tool, and it still depends on manual grinding, which is really inefficient.

Thinking about it carefully, they should try to make a machine tool, even if it can replace some of the most basic handwork. She never expected to be able to make any complicated machine tools in this era, but at least this concept can be first Proposed.

Fortunately, the Academy of Engineering has also learned a lot from her over the years, and made some new gadgets.

For example, the blower, the people from the Academy of Engineering have completely improved it, and made the gear in half, so that a push-pull piston bellows can be made to heat the blast furnace.

There are other similar improvements. All in all, Li Yuechen is gradually stimulating the creativity of these craftsmen.

Instead of finishing their work every day and waiting for the next order, they would gather together to chat about the differences between different types of work while drinking tea.

Occasionally, I can get some inspiration from other craftsmen and solve the problems I encountered by the way.

So now the craftsmen of the Academy of Engineering like to meet and communicate very much, because maybe they can make new objects tomorrow, so that Her Royal Highness can also be happy.

No matter where they are, they all hope that the leader can be happy. After all, when the leader is happy, he is also happy.

The princess likes to study strange skills and ingenuity, so these craftsmen are now using their whimsy ideas almost every day, thinking about what they can make.

Now they are all technical officers, maybe when the princess is happy and promoted to a military rank, the salary will also increase, right?

……

Compared to other people's thoughts, Li Yuechen is now focusing on the problem of the generator. …

The engineering institute in Dongdu is still studying the problem of the steam engine, but there is still no effective solution to the sealing problem.

Therefore, it is better to focus on electricity at present. As long as this problem can be solved, I believe that the country will undergo earth-shaking changes.

The next day, Li Yuechen stayed in his office, called all the people from the engineering institute, and explained the prototype of the generator to them while drawing pictures.

"In short, I want a hundred feet long enameled wire, and then wind it up like this... If the magnet is successfully made, it will be like this..." Li Yuechen explained to them what he wanted to do while writing and drawing on paper. What the hell.

There is no way, the main reason is that her painting skills are a bit horrible, and the pictures alone may not be able to make these craftsmen understand.

Fortunately, after years of cooperation, through her explanation, the craftsmen could understand what she meant, so they immediately got up and went back to prepare to start making.

As for iron ingots and copper wires, they are relatively simple and can be completed by handing them over to apprentices.

……

In the blink of an eye, it took another half a month, and by mid-July, fifty iron ingots had been made, and Geng Yunqiang sent people to insert them at the highest points of the nearby mountains.

In order to ensure the success of the lightning induction, several nearby trees were cut down, and then people were sent to take turns on duty at twelve o'clock to prevent people or wild animals from approaching and knocking them down.

On July [-]th, Geng Yunqiang came to report. According to the judgment of the fishermen, there is a high possibility of rain tomorrow.

Li Yuechen nodded and asked them to warn those responsible for guarding the lightning rods again that if it rains heavily tomorrow, no matter whether they hear thunder or not, they must withdraw fifty feet away.

The voltage of lightning is generally not lower than 1 million volts. If a person is hit, the chance of surviving is very low.

The princess has always attached great importance to safety issues, Geng Yunqiang immediately agreed, and then went to inform everyone.

Early the next morning, Li Yuechen had just opened his eyes. Although the sky was not yet bright, he could already see thick clouds through the window, which were very low.

When I started to practice, the big raindrops had already "crashed", and then I could see the frequency of the rain gradually increased. Looking from the room to the outside, the rain curtain gradually became more dense.

After practicing the exercises, I saw a silver-white light flashing in the sky, which disappeared in a flash, followed by a dull explosion.

There is lightning, there is thunder, waiting for this moment!
After breakfast, Li Yuechen sat by the window, and Wang Wuqiong made a cup of tea and put it beside him: "Your Highness, can this thunderbolt hit those iron ingots placed on Zhongshan?"

"Looking at luck, I can only say that the odds will increase a lot."

Li Yuechen didn't dare to make a [-]% guarantee. After all, lightning is uncontrollable, and he didn't dare to say that he would definitely hit it.

……

During the downpour, the entire barracks were completely submerged by the rain. In order to reduce the danger, Li Yuechen usually did not let the soldiers not go out for training at this time. They just practiced their physical fitness on the playground and cultivated their will.

In the office, Li Yuechen kept looking out the window, staring in the direction of several nearby hills.

As long as there are lightning lights in the sky, look for their landing point. …

But because the rain was too heavy, the thick rain curtain blocked a lot of sight, and the sky was so dark that it was basically impossible to see what was going on outside. Until after lunch, I didn’t see exactly whether any tears hit me. installation.

In desperation, I had no choice but to go back and continue to do my own thing.

Generally, the rain in the north doesn't last too long, but this rain still lasted until the next morning, and it didn't clear up until Shen Shi.

In the afternoon, Geng Yunqiang sent people to the mountain to check the results, while the army started training as usual, and cleaned up the water on the playground by the way.

There is no need for a plastic playground in the cement playground. With stagnant water, it is almost impossible to wait for the sun to dry it. Soldiers took brooms to sweep away the stagnant water and tried to make it dry as quickly as possible.

After lunch, Li Yuechen returned to the office and had just sat down when he heard a knock on the door.

"Come in!"

Geng Yunqiang pushed the door open and came in, and took out a few slightly deformed iron ingots in his hand with a look of anticipation: "Your Highness, it's done!"

There is still some soil on these iron ingots, which are attracting each other at this time.

Li Yuechen took it over and looked at it, and when she pulled it away, she felt an obvious resistance with her strength.

No need to do a test, just from this point you can feel that the magnetic force is much greater than those of natural magnets!
"Okay! Not bad! Go, go to the Engineering Academy!"

Li Yuechen was very happy when the experiment was successful, and immediately brought Geng Yunqiang to the engineering institute, handed over the batch of artificial magnets to the craftsmen, and asked them to install them on the first-generation generators that had already been completed.

In fact, it is not too much trouble, it is nothing more than a bracket wrapped with a coil, and then the magnet is placed on the connecting rod in the middle, plus two painted copper wires.

Including some transmission devices, with the current strength of the Engineering Institute, it is very easy to make it.

In fact, it is just two pedals. At that time, someone needs to step on the pedals to make the magnet in the middle of the coil rotate quickly through several gears, thereby generating current.

Li Yuechen, who was looking forward to it, felt a little nervous again when he faced this moment.

Don't look at it as just a coil and magnet, but this thing did take a lot of effort to make.Even if the experiment is successful, there are not many places where it can be used today.

After all, it appeared too early. This is not the era when generators should exist, and they can't even make a light bulb by themselves.

It's not that it can't, but it can't be done.In this era, there is no vacuum equipment at all. Even if you know how to make a light bulb, you cannot make it in this era.

Not to mention the problem of filaments. I read Edison’s articles in elementary school and knew that tungsten filaments can be used to make filaments, but where can I find such things in this age?

I heard that bamboo can also be used as a filament, but the problem is that there is no vacuum equipment, and the filament will burn up. It is not bad if it can be lit for two or three seconds at most.

So in this era, even if a generator is produced, its function is too small. It is the greatest invention of this era to realize what Li Yuechen said, and to realize instant communication between the two places.

Under the gaze of everyone in the Engineering Institute, Li Yuechen waved his hand, and the person sitting next to him immediately stepped on the pedals frantically. After passing through a few gears, the magnet in the middle of the coil began to rotate rapidly.

Li Yuechen held the ends of two enameled wires in his hand and looked down.

It is said to be enameled wire, but the varnish is still quite thick, which is also to ensure the insulation effect. After all, she does not know how much voltage this thing can emit.

Under the night, everyone present looked at Li Yuechen in front of them, expecting her to explain the principle and function of this thing.

However, she just raised her hands slightly, and let the ends of the thread held by both hands collide with each other lightly.

"Zi~"

At the moment when the two threads collided, a dazzling light flashed from her hands.

Since ancient times, the power that has been regarded as a god has been born in the hands of human beings today.