Tong Xuan's expression was surprised and happy, and he hurriedly asked: "I am ignorant, I beg the emperor to clarify my confusion!"
Zhu Qizhen pointed to the chair beside him and said, "Sit down and talk, Beilin, you can sit down too."
Tong Xuan did not dare, and waved his hands repeatedly, saying: "I'd better stand and listen!"
Bei Lin said: "The emperor asked you to sit down, so you sit down. How can you record it while standing?"
Tong Xuan reacted, quickly pulled two chairs over, gave one to Beilin, sat on one himself, and took out the writing paper and pen at the same time.
Zhu Qizhen thought for a while and then said: "Electricity is both matter and energy. In fact, matter and energy are the same concept, just two different forms of expression."
Tong Xuan quickly recorded it, but his brows wrinkled more and more, almost twisting into a knot.
Not only that, Beilin's face was also ugly.
As the dean of the Ming Academy of Sciences, he... couldn't understand it at all!
Matter and energy?
What the hell!
Zhu Qizhen looked at the expressions of the two people and could roughly understand their mood.
"Look out the window, what is that?"
Tong Xuan and Bei Lin looked up at the same time, and then said at the same time: "The sun!"
"Why does it get bright when the sun rises?"
"Because...the sun shines?"
"That's right!"
Zhu Qizhen nodded and said, "What is light?"
"It's just... it's..."
The two fell into deep thought again, yes, what is it?
Zhu Qizhen knew that they didn't understand, but at this time he had no choice but to forcefully indoctrinate them.
"Light is a kind of energy. When plants absorb this energy, combined with the carbon dioxide in the air and the water and nutrients absorbed from the ground, they can grow bigger and taller, and they can bloom and bear fruit. Do you understand this?
?”
Bei Lin and Tong Xuan looked at each other, seeming to understand, but also not seeming to understand.
Zhu Qizhen ignored them and continued: "This process is called photosynthesis, which is the process of converting energy into matter. Therefore, the essence of matter and energy is the same."
The two looked at each other again, as if listening to heavenly scriptures.
Bei Lin secretly lamented that after so many years of scientific research, it seemed that she had not even seen the threshold...
Zhu Qizhen had no way to explain in depth, so he had to say: "I won't go into the issue of matter and energy in depth. Today I will mainly talk about electricity. In fact, electricity itself exists, it just shows up in rainy weather."
He took the pen and paper from Tong Xuan's hand and wrote down the plus and minus signs.
"What we usually call electricity is composed of electric charges. There are two basic kinds of electric charges. This symbol is called positive charge, and the corresponding one is negative charge. You can also understand it as yin and yang. These two kinds of charges attract each other.
,At this time, we will not notice the existence of charge at all, but when it rains..."
As he spoke, he drew two more clouds on the paper.
"To put it simply, on this cloud, positive charges and negative charges will separate, and one end will be positively charged and the other end will be negatively charged. At this time, we still cannot observe it until the two clouds collide together!"
Zhu Qizhen put down his pen, stretched out his two fists, and bumped them together.
"I just said that positive charges and negative charges attract each other. The collision of different charges in two clouds will annihilate them quickly. In this process, lightning and thunder are produced. Since the speed of light is faster than the speed of sound, we are all
First you see the lightning, then you hear the thunder.”
Tong Xuan tried hard to digest these words, as if a door to a new world had opened. However, behind the door was not an unimpeded world, but darkness.
Because he...can't understand!
Bei Lin's expression was similar to that of Tong Xuan, as if she understood, but also as if she didn't.
Seeing that neither of them spoke, Zhu Qizhen had no choice but to say: "If you don't understand what I just said, why don't you ask?"
Beilin wanted to say that she didn't understand anything, but he didn't have the courage.
Tong Xuan said: "The emperor just said... Yin and Yang are attracted to each other, why do they separate in the clouds?"
"very good!"
Zhu Qizhen praised: "Being able to ask this question means that you have listened. However, this question is more complicated to explain. You should do the most basic knowledge first."
"Wei Chen... obey the order!"
Tong Xuan felt deeply ashamed, thinking about how ignorant and fearless he was back then...
Zhu Qizhen picked up the pen again, and this time he drew a picture seriously.
Tong Xuan and Beilin looked at it from the sidelines. It seemed to be many coils with a stick in the middle.
At this time, Tong Xuan looked at the stick in his hand and fell into deep thought again.
Could it be that an ordinary stick is the key to developing electrical research?
"Don't look at it, this is a magnet!"
Zhu Qizhen clicked on the "stick" on the picture and said: "According to the sketch I drew, prepare a copper coil and a magnet. Remember, the coil must be insulated... um... wrapped with cotton yarn. Remember, remember
, the copper wires must not be in contact with each other.”
Tong Xuan nodded repeatedly, waiting for the next instruction.
Zhu Qizhen asked: "Do you understand?"
"I understand, but... I don't quite understand..."
Tong Xuan's answer was very objective and sincere. He really didn't understand.
"It doesn't matter if you don't understand it now. Just prepare as I told you and you will understand slowly."
"yes!"
What Zhu Qizhen painted is the simplest electromagnetic induction device. By rotating a magnet, the magnetic field and the coil cut each other, and current can be generated.
However, how to verify such current has become a new problem.
After thinking about it, it is more straightforward to use a light.
"Beilin, go and prepare. Use bamboo silk to burn charcoal. Prepare more, about the length of your thumb. The thinner the better."
"yes!"
I vaguely remember that before Edison discovered the tungsten filament electric light, he tried using carbonized bamboo filament, and the effect was pretty good.
With the current technological level of Ming Dynasty, tungsten wire is a bit difficult to produce, but carbonized bamboo wire is still possible.
In the next few days, Zhu Qizhen simply refused to approve the report and immersed himself in the electric power research and development team.
Beilin also temporarily put aside her work at the Academy of Sciences to fully assist in electrical experiments.
Through the continuous attempts of the monarch and his ministers, finally, the jet-black carbonized bamboo thread... lit up!
Although it only lasted a short time, it was a success!
Tong Xuan almost went crazy, he finally opened the door to the world of electricity.
Although it was the emperor who opened this door, I am still very excited!
"Your Majesty, what is this...?"
Tong Xuan was so excited. The experiment was successful. A copper wire and a magnet really created electricity!
He couldn't wait to know the principle, because it was so important for subsequent research.
Zhu Qizhen also showed a knowing smile and said: "This is science!"