Head to the sky. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

Sun Tong Shennong's "phone" under the big catalpa tree.

Sun Yi moved all the 100 tin cans and batteries early, and the orphans ran around to help.

Under this tree, it has become a routine for Wang Erniu and his handlers to meet every night to discuss matters.

Just as the forums of later generations always have endless buildings, there are always new topics for the formulas.

Sun Yi borrowed this piece of land to thank the people this evening, and showed the electricity together, hoping to attract some Ming Dynasty people to study electricity together.

The newly made tin can battery increased the power of the power bank to 40% in half an afternoon. Now Sun Yi has ninety in a series, which is exactly 36 volts of safe voltage. The little pomegranate is in charge of "electrifying" everyone in the Ming Dynasty who is willing to try.

The people curiously stretched out their hands, stretched out their arms, put their faces on their faces, and stretched out their bellies, the little pomegranate held two electrodes, and nodded gently, and the people immediately had a feeling of sour and numbness, and they were electrocuted once, and they wanted to be electrocuted for the second time, so they slowly lined up a long line in front of the little pomegranate.

The stuffy eggs have been queuing up a few times, and every time they are electrocuted, they can be silly for a long time.

Pomegranate took advantage of a moment and put two electrodes on her tongue.

I only heard a "thunderclap" sound, the little pomegranate's tongue was numb, and then it was hot, and I stretched out the tip of my tongue to see that a big blister was bulging, and the little pomegranate cried "wow" at that time.

The orphan boss hurriedly took the electrode in the little pomegranate's hand and continued to be responsible for electropping the people queuing.

Except for Wang Erniu and the generals, the sun is falling, and a dragon rushed to come after receiving the news.

Each of the people who came brought a piece of dry firewood, and in a short time two bonfires were lit.

By the side of a bonfire, Niu Xue, the two blacksmiths raised their eyebrows and told the handles-

They had dinner with Lord Lidel.

What a face it is for a stinky craftsman to be able to eat with his master.

Sun Yi set up a wooden board by the other bonfire, this wooden board said that black is not black, white is not white, chalk, charcoal, and stone pens are all eaten, but it is not easy to write and wipe it off.

Daoist Jia stood beside Sun Yi and persuaded Sun Yi vigorously, "Master, don't dare to write on the wooden board, you have to respect the words, you have to respect the words." ”

Sun Yi was so annoyed that he couldn't do it, "Here are the two of us literate, who do I write to?" I'm just drawing, and I can always draw, right? ”

Jia Daoshi hurriedly said: "Of course you can draw pictures, but I just don't worry, I'm afraid that if the master writes half of the words on his head, he will offend the saint." Give me a heads-up. ”

Sun Yi perfunctory, "Okay, good, I'll pay attention." ”

Sun Yiyi drew a circle with chalk on the board, and drew an S in the circle, dividing the circle into two halves, left and right, and then dotting one point at each half.

Jia Daoshi said secretly, "It turned out to be the Yin and Yang Taiji Diagram. ”

This is a bad idea that Sun Yi came up with after thinking about it for quite some time.

He planned to popularize the basic knowledge of electricity to the people of the Ming Dynasty. However, the Ming Dynasty people could not be told about the atomic structure and electronic protons, and even the Ming Dynasty people may not have the positive and negative concepts of positive and negative electrodes. Therefore, Sun Yi wanted to use the ancient Chinese theory of yin and yang, and it happened that electrochemistry also had the saying of anode and cathode.

In electrochemistry, it is stipulated that the negative electrode of the battery is corroded and an oxidation reaction occurs, which is called the anode; The positive electrode of a battery is called the cathode. Electric current flows from the cathode to the anode, and electrons flow from the anode to the cathode.

Sun Yi felt very awkward! He was unable to introduce the concept of negative charge to the Ming Dynasty.

Sun Yi felt very aggrieved again. Why is it stipulated that the electron belt is negatively charged? Isn't it smoother to call it positive?

The charge is divided into positive and negative, which was originally arbitrarily prescribed by a few old men after observing the triboelectric effect.

Sun Yi decided to set things right: from now on, the electrons will be positively charged.

And so everything went smoothly.

The electrode where the battery is corroded and oxidizes is called the anode; Electrons flow from the anode to the cathode, and the current also flows from the anode to the cathode.

When the crowd gathered, Sun began to give a lecture.

Sun Yi picked up an iron can battery and simply introduced the principle of the battery in one sentence, "Two metals, if the speed of corrosion is different, can generate electricity!" The metal being corroded is the anode and the other metal is the cathode. ”

Sun Yi pointed to the copper wire between the copper sheet and the iron can, "This is like a canal, and electricity flows from the anode to the cathode along the canal." Water is called water flow in the canal, and electricity is called electric current in the canal. ”

Blacksmith Xue already had a slight idea of electricity, and at this time he asked a question: "Then how much electricity and water can be in this iron can?" ”

Sun Yi immediately felt that this problem was too big and couldn't understand.

The capacity of the battery in later generations is expressed in "milliampere-hours", but Mr. Ampere has not yet been born! Not only amps, but also volts, ohms, Faraday, henry, watts, joules, hertz, do not exist.

Sun Yi is a good analogy to play scoundrels,

"It's like asking how much water is in a pool, and the best way to do that is to scoop up all the water in the pool and measure it. No one has measured the electricity in the battery of this tin can, but there must be the same amount of electricity in each tin can here. You might as well say it has a jar of electricity. ”

Blacksmith Xue asked again, "How can I know that there is electricity?" ”

Sun Yi was thinking about it, and the stuffy man immediately replied, "Lick it with your tongue!" ”

Everyone laughed, and the little pomegranate immediately burst into tears.

Wang Erniu also raised a question, "Is the electricity of the Lord the same as the electricity in the sky?" ”

The stuffy man hurriedly replied: "Of course it's different!" A flash of electricity in the sky can split a tree into charcoal, and the electricity of the lord will not flash, but can only rot people's tongues. ”

The crowd laughed again.

Sun Yi gritted his teeth and said in his heart: "It seems that the people of the Ming Dynasty only accept intuitive things. Dedicated to science, today is out of the way! ”

Sun Yi asked people to connect all the iron cans and batteries together, took off their clothes, wrapped them in their hands, held a copper wire in one hand, and said to the stuffy people and the sunset next to him: "You two retreat, don't burn your belly!" ”

-- Sun Yi took off his stuffy and sun-drenching clothes.

Sun Yi shouted, "Everyone, pay attention! ”

I saw Sun Yi put the two copper wires together, and then slowly separated.

Between the two copper wires, crackling sparks shot out.

The sun fell and shouted, "Lord's electric energy is on fire!" Lord's electric energy is on fire! ”

Suddenly, a dazzling fiery snake jumped out of one copper wire and bit the other at once. The fire snake kept twisting and rolling between the two copper wires, making a "zilala" sound, and Sun Yi's surroundings suddenly became as bright as day.

Everyone looked at Sun Yi in the white light.

Sun Yi turned his head away from looking at the fire snake, and slowly pulled the distance between the copper wires, and the fire snake also became longer.

Sun repeatedly and slowly shortened the distance between the copper wires, and the fire snake also became shorter.

There was a strange smell in the air.

The stuffy man stared at the jumping fire snake, and after only a few glances, the stuffy egg's eyes were glazed.

After Sun Yisan opened and closed the three, he decisively stretched out his arm, and the fire snake was extinguished.

If you continue to play, the battery will be completely destroyed.

Sun Yi closed his eyes, and there was still a ball of white light shining in his eyes.

The bull blacksmith pointed to the copper wire in Sun Yi's hand, "Look, everyone, the copper is burning red!" ”

Sun Yi closed his eyes and asked, "Stuffy, is this lightning?" ”

The sulkey stammered back, "Yes...... It's lightning. ”

Sun Yi closed his eyes and announced to everyone: "Everyone is welcome to study lightning with me in the future!" ”