The villain also has spring

Thank you for the monthly tickets of Yulong VS Cansha, Xiaobai Veteran, and Blue Moonぁ Demon Dragon.

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"All the work must be done without disturbing the fire dragon." The technical geek has always been curious and killed the dog.

"Why?" Tanya asked.

"Because it's alarmed, the dragon can fly."

"Could it be that lightning can't even hit a dragon in the sky? Any arrow I shoot can do it." Tanya was full of disbelief.

Can you still demand that a girl who has played with dragons since she was a child can learn junior high school objects by herself?

Wu Chen was speechless: "Because I'm not grounded!"

"Hey, you are so strange, you are flying, how can you touch the ground?"

After making sure he wasn't trying to be cute, Wu Chen took a deep breath and said to the leaders of the stations along the line with a pleasant face, "Everyone has seen that there are coils under Line [-]. In order to prevent accidents, personnel must be transferred as soon as possible."

"Your Excellency, are you sure this device can kill dragons?" Many people have more doubts about black technology than awe.

"Sure." Wu Chen nodded solemnly.

"But there are many stations in the central area surrounded by Line [-]. If we add them up, where can we move? Is there a safety line?"

Only then did Wu Chen think of a very important question: referring to the design drawing of the doctor, no matter how long the lightning is, it is impossible to wrap the whole of Moscow!

"Theoretically, the potential difference between the top of the discharge and the ground is infinite, but in fact the length of the arc is not infinite. It is limited by the power of the power supply. The calculation method is: arc length (cm) = 4.318 × square root P (Electric power, the unit is watts), the premise is that the primary and secondary frequencies are equal to reach a 'resonance' state, at this time the arc length will reach the longest and the highest efficiency. If there is no resonance, the arc length will not reach the result calculated by the formula... "Thinking of this, Wu Chen suddenly said, "Doctor, the power of the nuclear reactor you power the magnetic storm coil..."

"900MW."

“900兆瓦！”那可是900000000w！开根号等于30000！乘以4.318后等于129540厘米，1295.4米！

"Alternating current above 2000V can break through the air, because we usually connect to 220V civilian electricity, so we need to use a step-up transformer to raise it to 2000V to trigger lightning. The doctor is directly connected to the nuclear reactor, and the voltage is far more than 2000V, so there is no need to Boost..." Wu Chen suddenly came to his senses, "Doctor, you didn't ask us to come here for evacuation, but for a bloody battle!"

"That's right, use enough 'food' to attract the entire group of dragons into a ball screen with a radius of 600 meters from the telegraph building." The doctor clenched his fists suddenly.

I go!

"But why lay such a long underground cable?" The length of the main coil obviously has nothing to do with the length of the arc. This is something Wu Chen couldn't figure out.

"In layman's terms, the power is directly proportional to the thickness of the cable. The higher the power, the thicker the cable. Otherwise, the copper core will be hot. First, the insulation layer will be burned, and then the copper core will be fused. Of course, the cables under the Moscow Metro Also copper. Luckily, we also know there is a 'heat conduction' effect."

"The phenomenon that heat is transferred from one part of the system to another or from one system to another." Wu Chen understood, "The doctor wants to exchange length for time."

The reason is simple. If the melting point of copper is 1000°C, due to the heat conduction effect, the time required for a 1-meter-long copper wire to reach its melting point must be different from the time for a 1000-meter-long copper wire to reach its melting point.

"Then doctor, you guess..."

"100 seconds."

Can you last for [-] seconds?Wu Chen expressed his doubts!

"The underground cables are the weakest part, like super long fuses, they must be the first to blow." The doctor encouraged Wu Chen.

But the technical nerd who can only think with the lower body is not moved at all: "Doctor, the flying dragon will definitely fly in the air when hunting, what should I do if it doesn't touch the ground?"

The doctor laughed, "Great Sage, do you think the lightning is Zeus' spear, thrown from the clouds to pierce the dragon? No, my friend, the lightning is just our lovely lighter!"

"Hit, fire, machine?" Wu Chen was completely confused.

"You must have not noticed that when the fire dragon breathes fire, it will first spray two streams of venom from the gland into the air, and then blow out a breath! So, if you don't wait for the venom to leave the dragon's mouth, ignite them, the fire dragon's Your head will become a big bomb, and you will blow yourself up to the sky!" The doctor's one eye was blood red.

In other words, was it just to study how to breathe fire that the fire dragon complained in person...

Normally, objects flying in the air without touching the ground are rarely struck by lightning.

However, there are exceptions.For example, Wu Chen's white swan.

Because the aircraft is a metal body with static electricity, and the charges are mostly concentrated on the tip and edges of the aircraft, the nose, the trailing edges of the wings and tail and the tips of various radar antennas are the most vulnerable to lightning strikes.Of course, the problem of lightning strikes has been considered at the beginning of the design of the aircraft. The wings and fuselage are equipped with electrostatic dischargers, which can discharge the static electricity accumulated on the surface of the aircraft into the atmosphere, so as to prevent the accumulated charges on the fuselage from attracting lightning!

With the size of the fire dragon comparable to that of an airplane, and without an electrostatic discharger, it is certain to be hit in a dense artificial electric field.

"Hey, old guy, can you guarantee that the lightning won't hit us?" Marius asked squinting.Although the bear knows nothing about these black technologies, it has a keen intuition that is almost like a beast.He clearly smelled a crisis!

"I have some pressure equalizers here. If not enough, we can also make some simple Faraday cages..." It's okay if he didn't explain, everyone began to doubt when he opened his mouth.What is 'some' and what is 'easy'? !Is your mother really your father's?I'll wipe it and go again!

"Let me do it." If Wu Chen didn't speak again, it would be an insult to his technical geek IQ.

"My white swan can attract the attention of dragons." As long as the male dragon is shot to death or something, the hatred value will explode in an instant.

Staring at Wu Chen's fluctuating but not regretful expression, Dr. Skura's eyes suddenly flashed, "Thank you."

Let a crazy old scientist say thank you sincerely with extremely clear eyes, Wu Chen can also be satisfied.

Before that, there is still some preparatory work to be done.

Returning to the subway station from the underground fortress of the Central Telegraph Bureau, Wu Chen boarded the white swan immediately.

Claulia, who had been thinking deeply on the road, finally came to her final judgment: "30 seconds."

"Is it only 30 seconds..." Dr. Skoura's estimation is still too optimistic.

"Or shorter. With human technology, the possibility of defects in the copper core wire is extremely high. It is impossible to be as optimistic as the doctor expected."

Claulia was right, there must be flaws.Otherwise, there would be no 'defective rate' in human industrial creations.

"What are we going to do?" Wu Chen thought for a while.

"Apply an electrostatic shielding layer to the white swan." T160 and Claulia said in unison.

The outer shell of a conductor 'protects' its interior from external electric fields, a phenomenon known as electrostatic shielding.

The so-called equipotential pressure equalizing clothing is made of metal wire by using the electrostatic shielding properties, and it is a must-wear safety protective clothing for live high-voltage operations.A Faraday cage is also a metal cage built on a similar principle.Leaving aside the materials required to make these armors, how can you fight a fire dragon wearing these cumbersome equipment that is wrapped from head to toe?

So in the doctor's original plan, the death of some people is the price that must be paid.That's why he used the word 'food'.

If Wu Chen hadn't been present, the doctor would never have revealed the whole plan.And in order to try his best to sell his crazy plan, he will try his best to cover up the part of 'must sacrifice'.

Or, in fact, it was because of Wu Chen's arrival that he had a better choice, that's all.

Only he knows what kind of torture his heart has become after being complained by the fire dragon like that bear, and relying on batteries and nutrient solution to continue his life every day.Wu Chen doesn't expect him to be a little friend who can play with him.

Wu Chen is actually not very worried that the white swan will leak electricity, because in order to deal with various emergencies, Claulia has systematically upgraded the white swan in a Cybertronian style.Among them, in order to deal with the attack of thermal weapons such as death rays, a "Cybertron capacitor" is added to the core circuit.These supercapacitors originally installed on the Transformers body to protect the core components and prevent the circuit from being burned due to energy overflow and overload are not enough to deal with some lightning.

What Wu Chen was more worried about was the destruction of the white swan by more than 2000 flying dragons.Losing the advantages of height and distance, fighting with the dragon army at a low altitude near the ground, even if the white swan's shell is super hard, small injuries such as scratches on the paint surface are probably inevitable.In the doomsday mode, it is really difficult to find a place to repair it.

However, things still have to be done.

The plot of the otaku savior with a humble heart and a sense of justice is one of them.More importantly, being able to witness this super artificial lightning is a dream experience for technology nerds.If there is a local turtle who uses speeches instead of sex, this super technology show is a gluttonous feast that can satisfy the unique taste of technology nerds.

Therefore, Wu Chen is quite looking forward to this man-made miracle that is about to happen.

To be on the safe side, Ivan and the others 'persuaded' all the underground survivors within 1500 meters of the subway line to move to a safe area.

Everything is ready.Accompanied by the first ray of sunlight piercing through the darkness, the white swan sprayed billowing snowflakes and soared upwards.

On the top floor of the Hilton, Tanya, who was hugging a dragon's egg and eating seaweed, rushed to the cockpit of the white swan that shook the snow like a waterfall, and waved with a smile.

Wu Chen nodded helplessly, this guy still killed the female dragon named Natasha.By the way, did she... use dragon slaying instead of sex.

"Search all targets, looking for the male dragon's pheromone." The white swan quickly disappeared, and Wu Chen activated the quantum weak magnetic resonance radar.

"I found it." The target with the biggest difference in pheromone from the female dragon is obviously the male dragon that is hidden the deepest in the dragon's nest. The T160 locks onto the target quickly.Based on powerful quantized data calculations, the posture of the male dragon on the holographic platform is quickly modeled.

Sure enough, compared to the average female dragon, the male dragon was not only bigger, with sharper horny skin, and darker scales, but as he breathed, Wu Chen also saw a huge grape bunch heart composed of 32 sarcoma.The white swan approached silently, and the male dragon seemed to feel the crisis, and suddenly opened his eyes.

The T160 immediately hovered to stop the plane, and everyone held their breath.Fortunately, after a brief stalemate, Xionglong slowly closed his eyes again.