263 Faraday cage

Half an hour later, He Guaner looked at the building in front of him, with an expression of disbelief in his eyes: "Science and Technology Museum?"

"That's right, the Municipal Science and Technology Museum. Mo Chunshan raised his eyebrows and stopped the car, "Let's go." ”

"What's so fun here?" He Wan'er was disgusted, "If you don't go, let's go to dinner." ”

Mo Chunshan had already gotten out of the car, and his eyes swept over her waist: "Didn't you notice that your recent clothes are much smaller?"

He Wan'er yelled at him angrily: "How can there be! You are blind!"

Having said that, she still used her hand to block her waist intentionally or unintentionally.

Mo Chunshan smiled and said nothing, only took out the car key and pressed it, seeing that he was about to lock the car door.

He Wan'er hurriedly jumped out of the car.

She knew that because of the one-button start and keyless system of the car last time, she had a big accident, and now the car in Mo Chunshan's hand had the induction system turned off.

So before he locked the car, she either got out of the car, and stayed in the car until he came back.

The science and technology museum is the science and technology museum, which is better than being locked in the car by him.

The Gyeongju Science and Technology Museum is said to have a history of more than 40 years since its establishment, during which it has undergone several major repairs, and since He Waner has a memory, this is the first time she has come to this place.

He Wan'er originally thought that it was something to deceive children, but unexpectedly, it opened her eyes.

As a liberal arts student, He Guan'er is a person who can't wait to turn around and run away when he hears the words quantum mechanics in Mo Chunshan's mouth, and this time there are all kinds of strange things in the science and technology museum, so that she can't even call her name.

The space exhibit on the first floor is strange enough, and the things on the second floor are obviously more sophisticated - such as the large metal cage on the stage in front of you.

There was a narrator standing on the stage with a microphone, but He Guaner didn't come at the right time, the girl had already finished introducing what the metal cage was, and at this time she was inviting the audience to play games.

"What is this?" she muttered to herself, looking at the sign that stood a few meters away.

“Fa

The aday cage is a cage made of metal or good conductors, and is named after the British physicist Michael Faraday, the founder of electromagnetism, and is a device used to demonstrate the principles of equipotential, electrostatic shielding, and high-voltage live operation......"

She whispered, but she felt that she could not understand the abstract thing in front of her through the description of this text.

Mo Chunshan tilted his face slightly: "Don't understand?"

She nodded, seeing the smile on the corner of Mo Chunshan's mouth, as if she was laughing at her for not understanding such a simple principle.

It just so happened that the narrator spoke again: "Who else wants to experience a Faraday cage? We're going to touch the cage with 100,000 volts of high-voltage electricity, and then sparks will fly, but the people in the cage will be fine." ”

Mo Chunshan had already raised his hand: "We." ”

After speaking, he turned his head to He Guaner and said, "You will understand after you experience it." ”

The narrator was overjoyed when he saw Mo Chunshan raise his hand. She ordered two children to participate in the game on stage before, and she wanted to find an adult to join her, but she was coaxed by adults, and no one had the intention of going on stage. So when he saw someone raising his hand, it was still a pair of handsome men and beautiful women, and he immediately smiled and hurriedly invited Mo Chunshan and He Waner to come to the stage.

Mo Chunshan dragged He Wan'er's wrist: "Let's go, together." ”

"Don't go, don't go!" He Guan'er heard that the 100,000-volt high-voltage electric legs were weak, where did he have the courage to go up?

"Then you don't go, I'll go. Mo Chunshan said leisurely, and stepped onto the stage with long legs.

He Wan'er was in a hurry, and wanted to hold Mo Chunshan to prevent him from going up, but his shoes hit the fire sign on the ground, and he stumbled not only failed to stop him, but he almost fell.

When she stood firm, she saw that Mo Chunshan and the two little boys had been locked in the cage.

He Wan'er bit his lip lightly, his eyebrows and eyes tightened, and his heartbeat gradually accelerated.

With a voltage of 100,000 volts, the cage is made of metal, and according to the narrator, because of a special structure, the people inside can not be electrocuted.

How does this work?

He Wan'er pondered for a long time, but he still couldn't find a corresponding paragraph from his limited knowledge of physics.

So she nervously waited for the experiment to begin, and when she saw the docent start wearing a hazmat suit, she suddenly became scared.

Metal, human body, 100,000 volts, no matter how you look at it, it doesn't look like a combination that can be safe and sound! What kind of game is this!

He Wan'er couldn't help but yell at him: "You come down, let's not play this, okay?"

Mo Chunshan smiled and said nothing, but fortunately waved his hand in her direction.

She became more and more anxious and wanted to climb up to the platform to pull her down, but before she could get close to the platform, several staff members came to stop her, saying that it was too dangerous not to approach.

He Wan'er was so anxious that he couldn't go over, so he saw the narrator, who was dressed like an alien, approaching the round big iron cage with the tip of the electric pole in his hand, and watched her signal to pull down the electric switch, and saw the voltage monitor instantly jump to the 100,000 volt mark.

The tip of the pole was close to the large metal cage, and sparks flew up, stinging her eyes.

He Wan'er almost screamed, but found that Mo Chunshan in the cage looked calm, and he didn't look like he was electrocuted at all.

She swallowed nervously, and the next second, she saw Mo Chunshan stretch out his hand and touch the iron cage, and the moment his fingers approached the cage, the fingertips and the cage body emitted dazzling electric sparks.

"Don't!" she couldn't help but scream, covering her eyes in fear.

After a few seconds, she removed her hand, only to see that he was still unharmed, looking out of the cage with a calm face.

The other two children in the cage also followed Mo Chunshan's example, and their fingers approached the metal cage and stirred up a burst of fire, and they almost jumped up with excitement on their faces.

Mo Chunshan was still standing, but He Wan'er gasped, his eyes were staring at the cage, and all kinds of bad pictures flashed in his mind.

For example, the body of someone who has been electrocuted to the point that they lie lifeless on the ground, or who has been electrocuted into a ball of fire on a high-voltage line.

She tugged at her heart's clothes, cold sweat broke out in her palms, and her face was frighteningly white.

"Sister, this is a Faraday cage, although it is made of wire, but the shell is grounded, and people do not pass through the current inside, which is an electrostatic shielding phenomenon, and this is the principle of the protective clothing of high-voltage live operators. There is also a car that is actually a Faraday cage, and the shell is a large metal shell, forming an allele, so you don't have to worry about being struck by lightning when driving in a thunderstorm. ”

The boy next to her couldn't stand it anymore, and calmly explained the principle of the cage to her.

He Guan'er couldn't listen to it, and muttered: "What if? What if the cage breaks and something happens?"

The boy was speechless, and a big roll of his eyes flicked over.

In less than a minute, the experiment was over.