Liu Wei: "Facing such a large electric eel is a very nervous thing, I must be careful to operate the next experiment, otherwise my life will be in danger!"

Foam boxes are lifted ashore.

De Ye prepares the equipment.

Liu Wei reached out to grab the electric eel, and stretched his hands very long to avoid the electric eel's body parts from touching his body.

The electric eel seemed to be very confident in its own abilities, and when Liu Wei grabbed it out of the box, it didn't struggle too much.

"No!

As soon as he put the electric eel on the film, Liu Wei instantly withdrew his hand and trembled a few times all over his body.

From the heart to the whole body, all kinds of discomfort seem to be screwed together by a force.

"Liu, are you okay?" said De Ye with concern.

Liu Wei slowed down for a moment and nodded, "My gloves seem to be in water, and the stinging sensation caused by the current just now makes me very uncomfortable!"

De Ye took off his gloves and handed them to Liu Wei.

Liu Wei checked again and again, and there could be no more accidents.

Every attempt risked his life.

After making sure that the gloves and hands were dry, he took out a tape measure and measured the body length of the electric eel, "2.14 meters, that's great, brothers, according to the research of scientists, the amount of electricity released by this electric eel must be amazing!"

and De Ye glanced at each other.

The two nodded.

"Come on, Liu, be careful!" Master De instructed.

Liu Wei bit his lower lip and held electrodes in both hands to approach the head and tail of the electric eel.

"呲呲呲~"

"Is there it?" Liu Wei let go and raised his head to ask Deye.

De Ye looked at the meter of the power regulator with big eyes and lost his mind.

"Master De!"

After shouting a few times in a row, De Ye came back to his senses and shook his head, "Liu, it's terrifying! Look at this current amplitude!"

The meter shows that the voltage reaches its peak at the moment of receiving the current, and the amplitude tends to be vertical.

Liu Wei stared at the peak on the meter for a while, then turned back to face the camera seriously and said, "Brothers, its discharge voltage has reached 833 volts!"

“？???”

"~"

"It's scary!

"You can get my leg hair electrocuted!"

"Kill instantly!"

The audience was amazed.

Liu Wei: "833 volts is enough to stop the heartbeat of an adult bottlenose crocodile or a strong buffalo and suffocate to death in a short period of time. ”

As he spoke, Liu Wei couldn't help but shake his body, "Master De, let's put it in the box first!

Have you ever eaten electric eel meat? I heard it tastes pretty good!"

De Ye smiled and shook his head.

Liu Wei smiled and said, "That's it for today's dinner!"

Before deciding to eat electric eels, Liu Wei has another very important thing to do, which is to popularize the discharge principle of electric eels.

This is also the question that the audience is most curious about.

Facing the live broadcast camera, Liu Wei said seriously: "Next, enter the professional science popularization time, and the following popular science content may only be seen in world-class scientific literature such as SCI, so interested viewers can start writing!"

"Write it down, you have to take the test!"

"I like to listen to Ah Wei talk about professional knowledge, although I don't understand!"

"Nine-year compulsory education education means that it sounds awesome!"

Liu Weipu said: "The question that everyone is most interested in should be why the electric eel discharges?

Before popularizing the principle of electric eel discharge, we trace the history back to 200 million years ago, and the latest research results of American scientists on electric eel power generation show that electric eels first evolved to form electrified capacity 200 million years ago.

In other words, in the Carboniferous period 200 million years ago, electric eels could already release electric current through their bodies, and then the power generation organs of electric eels underwent six evolutions to gradually form the current perfect discharge organs. ”

"200 million years ago?

"Just look at the appearance and know that this thing belongs to an ancient creature!"

"Electric eels 200 million years ago must have been bigger! There was no human activity back then!"

"Look at it now, except for humans, electric eels should have no natural enemies!"

Liu Wei went on to popularize science: "According to long-term scientific research, it has been determined that the source of the electric eel's discharge ability comes from the discharge body composed of its specialized muscle tissue.

The muscles on both sides of the tail of the electric eel are regularly arranged with 6,000~10,000 muscle sheets, separated by connective tissue between the thin slices, and many nerves go directly to the central nervous system.

The head of the electric eel is the positive electrode, the tail is the negative electrode, each muscle sheet is like a small battery, can only produce a weak voltage of 150 millivolts, but nearly 10,000 of these small batteries are connected in series, and the voltage when discharged can be as high as 600~800V, or even higher. Just like the electric eel in front of us, when discharged, the peak voltage reaches 833 volts, but this high voltage can only be maintained for a very short time, and the discharge ability will decrease with the exhaustion of the body.

It needs to rest for a while before it can release high voltage in extreme situations!"

"Enough, you can kill someone in seconds!"

"I wonder if I'm going to raise an electric eel?"

"Brother, your idea is dangerous!"

"It's better not to hurt the rest of the family!"

Liu Wei: "The breeding conditions of electric eels are very harsh, and if you are not familiar with this kind of creature, I do not recommend you to raise them."

Electric eels are toothless and rely on the suction of their mouths to suck food into their mouths, so they need to be very careful when feeding the keepers.

After talking about the principle of electric eel generating current, let's take a look at its discharge process.

To sum it up, it can be understood that the innervated cell surface has the function of neurologically controlled ion channels, when the channel is innervated and opened, a large amount of cation outflow forms a voltage, and the other side is a non-innervated sodium pump, so it can slowly pump the cation back into the cell, ready for the next discharge. Thanks to the infinite number of cells arranged in such plates and in the same direction of discharge, the voltage can reach a considerable level. ”

"Oh!"

“???”

"I suspect the streamer is insulting my IQ!"

"Speak human words!"

"I seem to be able to understand it, am I too highly educated?"

"Phew~, shameless, please take the initiative to quit the live broadcast room!"

Liu Wei: "It doesn't matter if you don't understand it, the research results of electric eels have been accumulated over many years, if you are interested, you can study the physics of electric currents after you go down, and then it will not be difficult to come back and understand." ”

Then Liu Wei put another small electric eel caught by the villagers into the same foam box, and the two electric eels did not have contradictions and friction, and they got along very harmoniously.

Liu Wei smiled: "Is there another problem? I know everyone must be curious, why don't electric eels have electric shock incidents among their kind?"

Because the adipose tissue in the electric eel has a good insulating effect, and the electric eel has evolved for 200 million years, its body has been very adaptable to the weak charged environment, we just talked about the normal situation, the electric eel will not release strong electricity, so the electric eel can live in harmony in the water. ”

"I also have a lot of fat, but unfortunately it has no insulating effect!"

"Maybe it's warm, hahaha!"

"No, no, no, maybe there is a conductive effect, don't believe it, go back and touch the wire to try it!"

Liu Wei reminded: "Brothers, you must have a degree of humor, and you can't make jokes, I remember that the president of a certain country put forward the idea of drinking disinfectant, which hurt many people!"

"I know this president, hahaha, Deyun Club is out!"