It wasn't that Yun Chao was angry, it was mainly that Xiao Yuzhu's actions were too dangerous.
The thing Yun Chao inserted with the stick was not an ordinary liquid, but dilute sulfuric acid.
The stick inserted with sulfuric acid is not an ordinary stick, it is a zinc rod.
Yun Chao improved the method used by the Wu Dynasty people to extract zinc. He put calamine, which is zinc ore, in a sealed container and heated it with coke to vaporize the zinc in the ore. After condensation, zinc was obtained.
The reason why Yun Chao was so angry was that he was researching how to extract zinc on the one hand, and making light bulbs on the other.
That's right, the candle wick covered with a glass cover that the girls saw was actually a small light bulb made by Yunchao.
In order to make this light bulb, Yunchao also failed many, many times.
However, compared with Edison and the group of scientists who invented the electric light, Yun Chao was much more relaxed. After all, he stood on the shoulders of giants and did not need to take so many detours.
The glass cover outside the light bulb is blown out by a glass craftsman.
The filament inside is carbonized bamboo filament fired by Yun Chao himself.
Yun Chao knew that the incandescent filament of later generations was not bamboo filament, but tungsten filament.
Unfortunately, he didn't know how to refine tungsten, so he could only use carbonized bamboo silk instead.
Put the carbonized bamboo filaments in transparent glass, and then pump out the air, and you can make a Wu Dynasty version of the backward light bulb.
Don't ask how to extract air. Ancient people have been cupping for a long time, using the principle of negative pressure.
When a zinc rod and a copper rod are inserted into dilute sulfuric acid at the same time, an electric current can be generated.
Connect copper wires to both ends, and the other ends of the two copper wires are connected to the positive and negative poles of the light bulb, and the light bulb will naturally light up.
However, Yun Chao was very dissatisfied with the brightness of the light bulb. It was almost the same as an ordinary oil lamp, and could not even match the brightness of later flashlights.
Even so, in the eyes of all the beauties, Yun Chao's tricks can be called a miracle.
You can make a "candle" spontaneously ignite without lighting a fire. What else can it be but a magical trick?
After showing the girls the simple DC battery he made, Yun Chao sat behind another table.
The table was large, with a device similar to later bicycle pedals placed underneath.
"Beauties, the time to witness the miracle has come again!"
Yun Chao stepped on the pedals with both feet and pedaled hard.
After a while, a "candle" on the table also lit up!
A group of girls circled around Yun Chao for a long time, but did not notice that he had a stick in his hand. Only then did they realize that Yun Chao used his feet to light the candle this time, not his hands.
Seeing the admiration in the girls' eyes, Yun Chaoyue pedaled harder and harder.
"You know, it looks like I'm riding a bicycle, but actually I'm riding on the future of mankind!"
Well, Yun Chao started to show off again.
Coming to this strange era alone, Yun Chao felt so lonely inside.
He wants to talk to people about computers, mobile phones, animation, and things that will be known to everyone in the future.
It's a pity that no one in this era can understand it.
Even the simple batteries and simple generators that junior high school students in later generations would make, no one in this era knew what they were.
It seems that Yun Chao is showing off to all the beauties, but in fact he is venting his frustration.
Making a simple battery is enough for Yun Chao.
Making a hand-operated generator, Yun Chao's liver damage was even greater.
Whether it is a generator or an electric motor, the first thing to make is the coil.
A small coil sounds simple, just wrap a few more turns of copper wire.
In fact, a coil made of copper wire doesn't work at all.
Because in the Dawu Dynasty, there was no such thing as enameled wire.
Anyone who has received nine years of compulsory education knows that the reason why a coil is called a coil is that the wires must be insulated.
If it is just wrapped with copper wire, it is just a lump of copper and is not called a coil.
In order to put an insulating layer on the outside of the copper wire, Yun Chao did not know how many experiments he did.
There was no rubber in Dawu Dynasty, and Yun Chao had no way to get the plastic out in a short time.
After repeated trials, Yun Chao finally chose raw lacquer.
Raw lacquer, also called lacquer, is the sap of the lacquer tree, a milky white gelatinous liquid.
This is the lacquer that the ancients used on furniture.
If it is not dyed, after the raw lacquer dries, it will be black, so there is an idiom called pitch black.
Yun Chao is a quasi-doctorate from the Agricultural University and knows something about raw lacquer, so he singled it out among various natural resins.
Raw paint has the properties of acid resistance, alkali resistance, high temperature resistance, corrosion resistance, rust prevention, moisture resistance, radiation protection, insulation and other properties.
It has a wide range of uses and is called the king of paints.
Raw lacquer is anti-corrosive, heat-resistant, and durable. It can not only be used in lacquered handicrafts, wooden furniture, and ancient buildings. In industry, it is also an indispensable coating for submarine cables and enameled wires. It is also widely used in shipbuilding, petroleum, chemical, and metallurgical industries. Anti-corrosion coating.
Yun Chao said that what he is pedaling now is the future of mankind, which is actually not an exaggeration.
Once human society enters the electrical age, it will definitely undergo earth-shaking changes.
Of course, from when Yunchao made a simple pedal generator to when humans entered the real electrical age, we still don’t know how many difficulties and obstacles we have to go through in between.
However, now that the first step has been taken, it will be easy to take the second step. As long as Yunchao can cultivate enough talents, I believe that the day of using electric lights for lighting will not be too far away!
Compared with using electric lights for lighting, Yunchao pays more attention to the application of electricity in machinery.
Once Yun Chao invents various electric machines, the Yun Family Army will really take off!
In fact, what Yun Chao wanted to build most was a steam engine.
With a steam engine, there is no need to rely solely on hydropower, and it can also drive many machines that use steam power.
Science and technology are primary productive forces.
Only when productivity increases, people will not have to worry about eating and clothing, and will have more energy to devote to construction, business, and invention...
Yun Chao started the manufacturing of steam engines long ago.
He drew drawings, found a group of craftsmen, and was studying in secret.
Now that there are generators, if electric machinery can be manufactured, the precision can be greatly improved, and the time to create a steam engine should not be far away.
After playing with the girls for a while, Yun Chao sent them back to work.
Yunchao is now looking for someone to build a power station. Of course, it will be an extremely small one.
Why did Yunchao build a dam on Wolong Valley from the beginning? In addition to using water power to drive it, it was to prepare for the construction of power stations in the future.
Therefore, Yunchao not only built a dam on Wolong Valley, but also had dams built on rivers with rich water resources.
Not too far away, there is a dam near Dongping Mansion.
Although the height of the water flow is not very large, it is still enough to build a small power station.
After all, it is still in the experimental stage, and the probability of failure is very high, so Yun Chao is reluctant to waste too much.
…
Just when Yun Chao was leading a group of craftsmen to tinker with the hydropower station, San Razi from Dengzhou sent an urgent report!
