After breakfast, the three of them moved to the desk. Mr. Zhao explained the design principles to the two disciples in the design drawings that he had been rushing to make overnight last night.

In fact, the disciples of design structure have long been clear-headed. What Mr. Zhao can do is just to remind them of some design points to avoid detours.

For example, it is best to add an appropriate amount of electrolyte to the water to enhance the conductivity of the water and speed up the reaction speed.

For example, the reaction rod inserted into water is preferably an inert electrode, such as a carbon rod, rather than a metal rod. Because electrolysis is a very strong redox reaction, metal will participate in the reaction.

And it is best to make a hook-shaped carbon rod, which can facilitate the bamboo tube to collect air...

After listening to the key points introduced by the master, Zhao Shizhen and Zhang Jian spent an hour breaking the sketch into part drawings and giving the specifications of each part.

Looking at the stack of drawings that were almost standardized in front of him, Mr. Zhao couldn't help but sigh secretly, maybe this is the difference between genius and mortals.

He became more and more determined, and tried his best to stop in the future, so that he could keep his stupidity.

The head can be broken and blood can flow. Teacher Zhao’s glorious image cannot be lost!

Mr. Zhao asked someone to go to the county to collect the corresponding materials last night.

Fortunately, the materials needed were not rare, and when they finished the drawings, Xiwa came to report that everything was packed.

They then moved to Jiangnan Hospital with drawings and materials and occupied a medical laboratory.

The first step is to make enameled wire. Only with enameled wire can the coil be wound and an electromagnetic effect can it be produced.

The enameled wire consists of conductor wire and insulating layer.

Generally, the wires are copper, but Mr. Zhao couldn't find such thin copper wire for a while.

Fortunately, in the high-end embroidery of the Ming Dynasty, gold and silver thread fabrics were used in large quantities. Therefore, even Kunshan has shops that specialize in making gold and silver threads, with all kinds of gold and silver round and flat.

Mr. Zhao finally chose silver wire because silver has the best conductivity, which is not that he is reluctant to use gold wire.

As for the insulating layer, it will be a little more troublesome. Mr. Zhao has not yet lit up the scientific and technological tree of resin materials, so he can only use the oldest oil-based enameled wire... that is, repeatedly brushing tung oil on the wire.

However, the wear resistance is too poor and cannot be used directly on the winding. It also has to be wrapped with a good fine cotton yarn.

This was what Faraday used back then.

This is a meticulous job. Not to mention Mr. Zhao, even the two inventors with skillful skills cannot do it well at the beginning.

Fortunately, there is the surgeon master Li Lunming, and Director Li's hands are really three points more skillful than the embroiderer.

I saw him pull out the thin silver thread from the coil, quench it and bake it softly, and then carefully paint the silver thread with tung paint with tung paint using a fine brush smaller than a toothbrush.

Then put the painted silver thread on a copper fire tray covered with a thick cloth and slowly dry it.

After drying, brush the tung oil again and then dry it. If so three times, you can wrap the cotton yarn.

In that room, the two inventors were not idle either.

Zhang Jian followed the drawings to make a wooden box and a square wooden frame.

Zhao Shizhen dismantled several lead-stained refills, mashed them with bamboo silk charcoal, sieved them, and then used an appropriate amount of fish bladder glue as adhesive to make a curved umbrella handle-shaped rod blank.

After drying, it is then put into the boiler, and after a long period of high temperature, it forms a ceramic-like texture, and it is used together.

Fortunately, the hospital has a boiler room with a bellows, otherwise it would be really hard to do.

In the afternoon, the enameled wire was completed.

Under the command of Mr. Zhao, Li Lunming evenly wrapped the wires outside the square wooden frame, and each turn was wrapped very closely.

Zhao Hao took the wooden frame from him and nodded with satisfaction: "Like artwork, Director Li is really a good craft."

"Can you send electricity by relying on this thing?" Li Lunming looked unbelievable. He always felt that it was something that Lei Gong and Dian Mother could do.

In other words, Mr. Zhao, who has already brought many miracles, told him that he would use these simple things to send out electricity, and he designated that he would curse himself.

"I'll open your eyes to you!" Zhao Hao ordered, and Zhang Jian held a wooden box and placed it on the table.

Li Lunming saw that in the wooden box was an iron shaft with a shaking handle, and a paperweight stone was tied to the iron shaft.

This is certainly not the best design, but the simplest verification design to be made.

Time is life.

Zhang Jian took the wooden frame and put it in the box.

With a bang, the slit was stuck in the notch reserved on the inner wall of the wooden box... The inventor's craftsmanship in this era was his meow.

You can't become an inventor without craftsmanship.

Then he picked up a bowl of lard and brushed a layer of oil to lubricate the iron shaft and the wooden holes with a brush.

At the same time, Zhao Shizhen led out the two ends of the silver thread from the small holes reserved at both ends of the wooden frame and wrapped them on two carbon rods as thick as chopsticks.

"Pull the curtains!" Mr. Zhao ordered, put on thick Eucommia Glue gloves, and his heart was thumping with excitement. He thought to myself that I hadn't built a steam engine yet, but I had already created a generator first.

"Shake it!" Zhao Hao ordered loudly.

Zhao Shizhen was also wearing gloves and slowly turned the handle of the iron shaft. The stones tied to the iron shaft slowly turned.

"It's time to witness the miracle!" In the dim room, Zhao Hao held up a carbon rod with one hand and slowly approached it.

Everyone stared wide, holding their breath, not knowing what would happen next moment.

Just when the two carbon rods were one inch away, a blue electric spark suddenly pulled out between the tips of the rods, which scared everyone present!

"Success!" Zhao Shizhen and Zhang Jian cheered.

But the two were not too excited, because they didn't know what this arc meant to humans at this time.

"Lightning!" Li Lunming knelt on the ground, shocked so much that he was extremely shocked: "Young Master actually created lightning!"

As he said that, he bowed to Zhao Hao and said, "No wonder the young master is so magical. It turns out that Lei Gong has come down to earth!"

"I'm still an electric mother. Get up quickly and don't show my eyes." Zhao Hao rolled his eyes and didn't bother with him.

Because Mr. Zhao was in a very good mood at this moment, the world's first DC generator was born in his hands.

Sorry, Comrade Xiao Fa. The capacitor unit will be ‘Zhao’ in the future…

Uh, it sounds so ugly, forget it and then talk about it later.

After the test hand-crank generator was working properly, Mr. Zhao struck while the iron was hot, asked the guard to pull the curtains and lift a water tank.

The warm boiled water was filled in the jar, and Mr. Zhao brought a mask and directed the command.

Zhang Jian carefully added Glauber's salt to it, and Zhao Shizhen slowly stirred it with a wooden stick.

When precipitation gradually appears in the water and the water temperature completely cools down, scoop the water into the porcelain basin.

Two carbon rods were fixed on a thin wooden board and sent them to the basin with a big head facing down, just like fishing.

Then put two bamboo tubes on the two carbon hooks, and put a pig urine bubble on the other end of the bamboo tube, and tie it tightly with a rope.

After shaking the generator's shaker, a slight grunt sound quickly came out from the bamboo tube, just like water was boiling.

The two shrunk pig urine bubbles gradually filled up.

The one on the left was obviously inflating much faster and produced a strong lift. If Zhao Hao had not held it in time, he could have brought the thin wooden boards on the edge of the basin to fly.

The master and apprentice smiled happily, and they knew that the electrolysis had also succeeded.

ps. The Ming version of the collection of seven major units of measurement is named. Let’s start with the length today.

If you agree to use the current size, size, and size, please choose 1, and if you agree to change to metric system, please choose 2, (of course it is not necessarily called rice, centimeter).

The voting period is three days.
Chapter completed!