"Young master, Xiaoxi brought your change of clothes!"

Li Zexuan returned to Zuifeng Xuan, and about a quarter of an hour later, he didn't wait for Fu Bo to deliver the materials, but waited for Xiao Xi to deliver the clothes.

"Well, it's hard work, Xiaoxi, you can go back by putting these clothes in the back room!"

Li Zexuan crouched on a few cases, and said while recalling the relevant knowledge of physics and chemistry in his previous life.

"Young master, Madame is worried that you will suffer here alone, so I told Xiaoxi to stay here and take care of you these days! Your three meals a day, Xiaoxi will go back to bring it to you! ”

Xiao Xi hugged the burden she brought over, turned around and said.

"Huh~? That's what my mother said? ”

Li Zexuan raised his head and asked.

"Of course..... Yes, Xiaoxi went to clean up the room for the young master! ”

Xiao Xi replied with a slightly red face, then hurriedly turned around and went to the inner room with the package.

In fact, after Sanbao sent back the news that Li Zexuan was going to stay in the workshop for a few days, Mrs. Li really didn't expect to send a maid over to take care of her son's diet and daily life.

Thinking of the meaningful eyes and smile of Mrs. Li when she came, Xiao Xi's ears were red with shame.

......................

"The owner, this is the material that the Fu steward asked the little one to send over!"

Not long after Xiaoxi entered the back room, Song Xiaosi came with a package. After experiencing the lesson of the last time, Song Xiaosi's smile now has a hint of caution, and he no longer laughs at Meng Lang like before.

"Hmm."

Li Zexuan took the package, opened it and checked it carefully, and then nodded with satisfaction: "Very good!" It's not bad, you can go back, little four, it's almost time to get off work! ”

"Young master, the little one is not in a hurry, you can also live in the workshop at night, or it is not too small here, if you have any instructions at that time, the small one can also run errands for you, right?"

Song Xiaosi smiled diligently.

"No, there's nothing to do here, I'll just make it up alone, Xiaosi, you better go back!"

Li Zexuan smiled and replied.

At this moment, Xiao Xi cleaned up the room, came out and said, "Young master, your room is cleaned up!" ”

"Well, good work!"

Li Zexuan nodded.

"Ah~! Young master, that, that little one's retirement! ”

When Song Xiaosi saw Xiao Xi, he immediately reacted, and at the same time secretly hated himself for talking too much, his own young master is a red-sleeved fragrance, why do you need to come over to help.

"Hey!"

As soon as Li Zexuan saw Song Xiaosi running away, he knew that this kid was thinking too much and planned to call him back, but after thinking about it, he felt that it was better to forget it, there was nothing to explain about this kind of thing.

"Xiaoxi, there is still a wing room on the east side, you go and clean it up yourself, young master, I'm going to start working!"

Li Zexuan picked up the large bag of experimental materials, walked towards the room, and smiled at Xiao Xi.

"Oh!"

Xiao Xi saw that Li Zexuan didn't need her help now, so she said "oh", and went to another room to clean up the room, after all, she also had to live here at night, so she couldn't sleep in the same room with Li Zexuan, right? Although she had thought about it, she ........

.......................

"Hey, after so long, I've finally done my old job!"

Li Zexuan put the bag of materials on the "experimental table" that he temporarily put together with four long tables, and looked at this simple "laboratory", he felt a little emotional for a while.

As an engineering student, and he is also an engineering student of his major, I don't know how many circuit boards I have welded in the laboratory before, but I didn't expect to travel to the Tang Dynasty, and I have to do my old job, the difference is that his current experimental conditions are more shabby, of course, the experiments he does are more basic, simpler, and modern integrated circuits can not be compared.

"It's started, today Young Master Ben will let the battery come to this world more than a thousand years in advance, haha! Dear Mr. Volt, I'm sorry to rob you of your invention! ”

Li Zexuan rubbed his hands and muttered to himself with some eagerness.

That's right, what Li Zexuan wants to do is the simplest voltaic battery. What the? Do you think that the voltaic battery is weak and exploded, so it is better to build a generator?

Damn, big-breasted brother, you don't have back pain when you stand and talk, you want to run before you learn to walk, you think the generator is so easy to build! You traveled to the Tang Dynasty and came here to make one for me? You can't build it in a month or two? Li Zexuan now wants to get electricity immediately, and then realize his next plan, how can he have a month or two to build a generator?

Li Zexuan watched the TV series "Myth" in his previous life, in which Yi Xiaochuan, played by Hu Ge, traveled to the Qin Dynasty, and because his mobile phone ran out of battery, he made a hand-cranked generator...... Of course, this is the screenwriter's nonsense, in fact, his thing can't generate electricity at all.

Well, magnets have existed in ancient times, and the wires are made of gold wires on the clothes of the future Mrs. Liu Bang Lu Hou, but his gold wires have no insulating skin, and there is no difference between winding a coil and a lump of gold lumps...... In addition, if you want to charge your phone, don't you need an interface cable......

Li Zexuan, who was born in science and engineering, has been entangled for a long time because of this matter. At that time, he also thought that if he really traveled to ancient times, when he needed to charge his mobile phone, he should "adapt to the times" (ancient materials were limited), and what kind of device should he invent? Is it a simple hand-cranked generator, or something else?

What the? You say that there was no signal in ancient times, why do you charge your mobile phone? You can use your phone as a camera, but your phone can only be used for calls? If there are some *** expansion tablets in the mobile phone, and they are used to contribute to the emperor, maybe they will have the glory and wealth of their lives......

After thinking hard and looking for a needle in a haystack on the Internet with dogs and pigeons, he really found it......

In 1800, the famous scientist Voltaic (in fact, it is volts, the unit of voltage is volts, I don't know those idiot translators in China, why they call him voltaic for a while, and call volts for a while, so that when Li Zexuan was in middle school, his little mind was often confused), invented the world's first battery, and it is also the ancestor of modern batteries.

Through experiments, he discovered that electricity is generated when a piece of paper soaked in salt water is sandwiched between two different metals. He soaked the blotting paper in salt water, stacked a layer of silver, a layer of blotting paper, a layer of zinc sheet, and then connected the top layer of metal with a wire to the bottom layer of metal sheet, and found that the voltage and current could be measured. This device is now called a "voltaic stack".

The principle of voltaic batteries is that after the contact between different metals and the electrolyte solution, the ions in the solution move in a directional way to generate an electric current.

Until now, the dry batteries we used were modified voltaic batteries. In the dry battery, the paste of ammonium chloride was used instead of the brine, and the copper plate was replaced by a graphite rod as the positive electrode of the battery, while the outer shell still used zinc skin as the negative electrode of the battery.

Isn't it easier to build a battery than to build a generator?

.............................

(End of chapter)