The two sides of the artificial lake are separated by tens of meters, and the red dot of the laser sight is not very obvious at such a distance, but fortunately there is no one there, even if the shot is crooked, it will be fine.

Zixuan said: "In the future, you can change the sight to a more advanced camera device, and transmit the captured picture to special glasses, and you can see where you are aiming when you wear glasses, otherwise you will not be able to see the red dot if you are too far away." ”

Jiang Chanji thought of the Saiyan monocular combat power detector for no reason, and if it was made into glasses like that, it would definitely be very handsome.

Wang Yefei roughly aimed at a willow tree, held the grip in his hand, and activated his ability.

An electric current is passed from the iron-cobalt alloy of the grip to the anode inside the laser cannon.

An instantaneous discharge occurs between the high voltage of the anode and the cathode.

The discharge tube is mixed with nitrogen, helium and carbon dioxide gas, and the nitrogen molecule is excited by the impact of electrons, and then collides with the carbon dioxide molecule, transferring energy to the carbon dioxide molecule, and the carbon dioxide molecule jumps from the low energy level to the high energy level, and the particle number is reversed, bursting out of strong light.

The scattered light is concentrated into a beam by the mirror, which is emitted through the glass hole in the front of the laser cannon.

There are no gorgeous light and shadow effects, because the carbon dioxide laser is in the mid-infrared band, invisible to the naked eye, and there is not even a trace of sound, and everyone doesn't know whether Wang Yefei launched the laser or not.

Suddenly, blue smoke and orange flames rose from the trunk of the willow tree on the other side of the artificial lake, and then it crackled and burned.

"Hurry! Fire! Extinguish the fire!"

Qianyang hurriedly called the guards and staff at home, these people were also puzzled when they saw the willow tree catching fire for no reason, but they didn't ask much, and they were just a meal with a fire extinguisher.

Wang Yefei has put down the laser cannon, she can feel the temperature of the shell of the laser cannon rise sharply, even to the point of hot hands, and the temperature inside the laser cannon can be imagined.

The cooling water circulation system automatically starts working, bringing out the heat inside the laser cannon through the flowing water, and exchanging heat with the outside air, but it must be slow to cool down in this way.

"Sister Xiaosui, can you speed up the flow of water?" Zixuan asked.

The cooling water circulation system has a built-in battery, but it is limited by the size and weight, similar to a toy, and after Qianyang can skillfully control the ability, the battery will be removed to further reduce the weight and volume, but now Qianyang is not precise enough to control the ability, and the circulation device will be burned if the current is too large.

"Yes, it's a piece of cake. "Spikelets speed up the water circulation.

"Senior Sister Aurora......" Zixuan looked at Aurora.

"No problem. ”

Aurora precisely controls his abilities, and the temperature of the circulating water stream rapidly decreases, almost freezing, circulating inside the laser cannon, heating it deep inside and cooling it closer to the shell.

Zixuan silently calculated the time.

A small indicator light on the cylinder turns from red to green, indicating that the temperature inside the laser cannon has cooled to the point where it is ready for the next fire, which takes about half a minute.

In other words, even with the help of Aurora and Spikelet, it will take at least half a minute for the user to fire the second laser.

Considering that the coordination will become proficient in the future, and the internal parts of the laser cannon will be further improved, the interval time is expected to be further reduced, but it is not bad to be able to shorten it by a few seconds.

If you rely on the cooling device of the laser cannon itself, I am afraid that the whole battle can only fire one laser.

"Teacher Wang, how do you feel?" Zixuan asked.

Wang Yefei was speechless for a while, and only sighed after a while, "Awesome!"

Isn't this kind of long-range attack ability exactly what all electric ability people dream of?

"But the power doesn't seem to be enough......" Zixuan frowned and looked at the other side.

The fire in the willow tree has been extinguished, and Chio asks the staff to leave the fire extinguisher and leave.

Everyone ran to the other side and stood by the willow tree to observe the traces left by the laser cautery.

The green willow tree that had sprouted and pulled its leaves was already a pear blossom pressed begonia, as if it was covered with snow, because the foam fire extinguisher sprayed it from top to bottom, and even now when the staff left, the foam still flowed down the branches and trunks.

At chest-high height of the trunk, a nearly circular hole appeared, the thickness of a finger, and the hole was charred black inside and out, and from one end the other could be seen.

The fire spread from the hole to the entire tree.

Just looking at this hole, you may think that the power is nothing more than that, not as destructive as the arrow shot by the screaming bone bow, and not as good as the momentum of the horn bow sweeping everything, but in fact, as long as the laser is shot out, there is no way to dodge, the only chance to dodge is before shooting, as long as the aiming and release of electrical energy is completed, the target that is hit will almost definitely die without special protection......

The laser landing point can rise to hundreds of degrees, thousands of degrees, or even tens of thousands of degrees Celsius in a short period of time, enough to melt the steel - depending on the power of the laser, it is not an exaggeration to say that this is the strongest point of destruction.

Not only was the trunk of the tree burned, but even the courtyard wall behind the trunk was charred black.

Everyone was stunned to see that if this laser fell on the human body, the human body would be burned out of a hole, but it would not bleed because the blood vessels at the point where the laser landed had already been scorched.

"Teacher Wang, have you already done your best just now?" Zixuan asked.

"No, about half of my capacity. Wang Yefei shook his head, when facing an unfamiliar weapon, no one would come up and use all his strength, to put it mildly, what if the laser cannon can't bear it?

Zixuan visually measured the distance of the artificial lake, and then estimated the burning effect and time of the laser on the trunk, because the power of the laser is inversely proportional to the distance used, and the farther the distance, the more serious the loss of the laser caused by air, water vapor, and dust.

"This time it's about 2kw to 3kw. She said, "Teacher Wang, try again, this time with all your strength." ”

"Good. ”

Everyone returned to their original positions, Wang Yefei once again carried the laser cannon, this time she and everyone were mentally prepared, she aimed at another tree and launched the ability.

Once again, the electrical energy is converted into light energy, and a beam of light that is straight and invisible to the naked eye hits the target.

Just shooting a hole in the tree is no longer challenging, Wang Yefei used all his strength this time, making the duration of the laser a few seconds longer, and his hand moved slightly.

Click.

The thigh-thick willow tree of an adult female not only caught fire, but also broke off at the waist, and the upper half of the tree fell to the ground along with the canopy.

In the past, when Wang Yefei released electric energy, he often only released it for a moment, and the same is true for other electric transcendents, because the electric system is different from other systems, whether it is touching or using the arc to attack in the air, as long as it hits the target, it can make the target lose the ability to resist in an instant, either electrocution, or the electric life can not take care of itself, why do you have to make the target into fried chicken before stopping?

Because of this, the explosive power of the electric transcendent is very strong, and the sustaining power is very poor, and she uses it for a few seconds in a row this time, which is more fatigue than the usual ability of using it more than a dozen times in a short period of time.

And after a few seconds, the heat inside the laser cannon came out, and the entire metal cylinder was so hot that it could only be put on the ground and let it cool slowly, and it couldn't be held at all.

Everyone didn't care about anything else, so they picked up the fire extinguisher and hurried to extinguish the fire to prevent the fire from spreading.

When the fire was extinguished, everyone saw that the section of the tree trunk had been burned, but they could still vaguely see that the section was very neat, like tofu cut by a scalpel.

"It's almost 5kw this time, just a rough estimate. Zixuan said, then turned her head to look at Qianyang, "Senior Sister Qianyang, it's time for you to try." ”

"Uh...... All right. Chio stood in front of the laser cannon with little confidence.

Xiao Sui and Aurora cooled the laser cannon first, and when the temperature cooled down, Qianyang learned from Wang Ye Fei's appearance, carried it on his shoulder, and turned his head to ask everyone what questions they had, but she was speechless when she saw her.

"Hey, why did you all run so far?" she cried out dissatisfied.

Except for the grandfather who was in a wheelchair and didn't run, and Wang Yefei, who was teaching by word and deed, including Xiaosui, everyone hid far away, using the courtyard wall and buildings to cover their bodies, and only poked their heads out to look at this side.

"No, no, we're just afraid of affecting you......" Xiao Sui laughed awkwardly.

"yes, yes, it's not good in case you're distracted. Jiang Chanji agreed.

It's no wonder that everyone runs, it's really because Qianyang doesn't look as reassuring as Wang Yefei, the latter has been immersed in the ability of the electricity department for many years and is an experienced teacher, while the former is just a fledgling and his mastery of ability is still in a half-baked state...... However, the electrical energy that Qianyang can theoretically release is still amazingly strong, just like a nuclear bomb launcher and password have been mastered by a child who doesn't know anything......

"Fools, you!" Chio said angrily, "Is that what you don't feel comfortable with me?"

"No, no, no, it's not that I'm worried about you, it's just ...... To be on the safe side. Jiang Chanji explained.

"Hmph, I kind of know who you are!" Qianyang asked his grandfather for help aggrievedly, "Grandpa, look at their ......"

Grandpa laughed and said, "Actually, I want to run too, but I can't run......"

"Grandpa, why are you like them!" Chio was so angry that his face turned red.

After making a joke, Qianyang pouted and aimed a laser cannon at the willow tree on the other side of the artificial lake, and Wang Yefei escorted him to avoid accidents.

"Senior Sister Qianyang, Teacher Wang has already tried the tree, so don't try it, just aim at the stones by the lake. Zixuan shouted from afar.

"Oh. Qianyang adjusted the direction of the muzzle of the gun as he said, and the red dot of the sight landed on the stone on the other side of the lake.

She calmed down, putting aside the joke and focusing on the handle of the iron-cobalt alloy, the electrons inside the alloy pulled by her bioelectricity and began to move in a directional direction according to her will.

A similar but much stronger current rushes into the laser cannon, and the powerful voltage causes the carbon dioxide molecules to jump to a higher energy level, the number of particles is reversed, and the invisible and insubstantial laser light is transmitted through the round hole again.

However, after all, Qianyang is a young lady who can't pick up her shoulders and can't lift her hands, and she has never carried such a heavy object on her shoulders, although it is no problem to carry it, but due to nervousness, the laser cannon slipped slightly, just a little bit, but the distance of dozens of meters is enough to make the landing point of the laser shift greatly.

The laser swept through the lake and then landed on the courtyard wall.

A stunned scene appeared, the lake that had been briefly swept boiled like a boiling pot, and the bricks at the point where the laser fell suddenly became white-hot, while the adjacent bricks turned red and emitted puffs of green smoke.

Qianyang was startled, seeing that the laser cannon was about to slide off her shoulder, Wang Yefei hurriedly hugged the cylinder with both hands.

"Ahh

Wang Yefei was so scalded that she grinned her teeth, but she still gritted her teeth and insisted on putting the laser cannon safely on the ground before letting go.

"Teacher Wang, are you okay?" Qianyang was shocked and remorseful, and stretched his neck to inspect Wang Yefei's injuries.

Wang Yefei's palms were burned red, and there seemed to be blisters in a few places.

"I'm sorry, Mr. Wang, it's all my fault for being careless...... Do you want to go to the hospital?" Chio hurriedly apologized at a loss.

"It's nothing, is there a scald cream or something? Rinse it with cold water and treat it simply. "Wang Yefei is not so squeamish, she doesn't take this injury to heart, just ask Lu Weijing to deal with it after returning to school, she is more concerned about the killing effect of Qianyang's blow just now, because the temperature of the cylinder after the laser cannon is fired is much higher than when she uses it.

Everyone ran from their hiding place to the other side of the lake to carefully inspect the condition of the courtyard wall.

"This ...... What's going on?" Spike asked in surprise.

Everyone can see clearly just now, after the laser falls on the courtyard wall, the masonry where the landing point emits a dazzling white light, as Qianyang stops releasing the ability, the white light disappears, but in such a short time, the masonry that was hit is close to the molten state, and now the hot masonry is slowly cooling, and no one dares to touch it with their hands.

The most surprising thing is that after the temperature of the masonry drops, it does not return to its original state, but is translucent.

Zixuan observed for a while and said, "The masonry has been vitrified at high temperatures, and the laser energy just now should be around 10kw, which is enough to cut metal, which is already considered a weapon-grade category...... The restriction on the further improvement of power is the core device laser diode, that laser tube is industrial-grade, it would be nice if you could get a weapon-grade one, or it would be better if you could customize it. ”

She simply converted, for the industrial-grade laser diode, the output of 100 watts of power, about 16kv of voltage, if the laser energy just now has 10kw, that is to say, Qianyang released more than 1600kv of voltage, or 1.6 million volts.

The relationship between the increase of output power and voltage is not linear, but roughly speaking, in addition, this kind of electro-optical conversion device, even if it is an ordinary light bulb, the glowing voltage at the moment of light is higher than the working voltage, and the same is true for laser diodes, so there is probably no problem with the voltage peak at the moment of Qianyang discharge to 2 million volts.