Everyone: Are mechanics weak? I wake up and rectify the natural disaster

That night.

Su Wen returned home.

While enjoying Miss Jiang Chirui's loving dinner.

Huai'an base city.

The administration of this base city, as well as the local professional association branch.

Already a mess.

The professional team that Su Wen happened to meet on the 'Rocky Coast' was from Huai'an Base City.

And, not just any ordinary person.

It has a place on the ranking list of the local professional association.

Elite senior team.

——The eleventh most powerful team in Huai'an, the 'Swordfish' team.

Captain Li He is a second-level hunter and ranger with a nine-star professional level.

There is only one step away from the third turn.

Apart from him, there are five second-level players in the team.

The professional levels of all the remaining members are also above seven stars in the first rank.

It is a well-known local professional team.

Especially good at attacking secret places with water.

Professional team leaders like Li He.

The relationship with the local city bureau and association branches is often not much different.

The activities of professionals in the base city cannot be separated from the assistance of local institutions;

Local organizations occasionally have tasks in secret realms that require professionals to handle.

Therefore.

The news brought back by Li He and others immediately received great attention from the Municipal Bureau...

——Theoretically, a lord-level monster appeared in the first-level secret realm that belongs to the Novice Village!

——Not only that, there is also a group of unknown aliens dormant deep in the secret realm!

No matter which piece of news, for the Base City Administration Bureau, it is a life-threatening rhythm!

..

Huai'an Base City Administration Bureau, War Situation Room.

The fluorescent lamps shed soft white light, and in the hall of the Situation Room, all the heads of the city bureau and the association were present.

Several scholars from the base city research institute were urgently invited overnight.

"Next, the video I want to play is SS-level confidential information. After everyone present leaves this door, it must not be disclosed to the outside world in any form,"

Deputy Director Wu of the Municipal Bureau came to the stage, raised a small USB flash drive, his face was as dark as water,

"All insiders, including the 'Swordfish' team, have signed confidentiality agreements. I hope everyone will realize the importance of this matter."

Look around.

Seeing everyone here nodding slightly.

Deputy Director Wu said no more and inserted the USB disk into the computer.

A somewhat shaky picture appeared on the giant projector.

The distant horizon.

A blue stream of light coming quickly.

A missile that ignites after being thrown and dives rapidly.

The screen was shaking violently, there was an explosion like the earth was shattering, and the half of the fish tail flying into the air...

It was a short video that went by almost instantly.

It takes about less than a minute.

The scene was finally frozen, at the moment when the UFO turned its head 180 degrees smoothly and turned on its afterburner in a way that completely violated aerodynamics.

"..."

Everyone in the hall was stunned.

"Electric propulsion...definitely electric propulsion..."

"And this acceleration curve, hiss... something's wrong!"

After a while, it was the veteran scholar from the Huai'an Research Institute who took the lead in breaking the silence.

I saw him grabbing the remote control and playing back the last ten seconds repeatedly.

At this time, the UFO turned its back to the camera, and the engine at the rear was clearly revealed.

The old scholar stared at the screen.

A pair of old eyes burst out with incredible light.

"With such a small body size, and obviously carrying crew and payload, how big can the power section be?"

"It's amazing that the proportion is about 30%, but the acceleration curve is so exaggerated..."

"And this hovering, how do you do it?"

"I didn't see the ground turbine, could it be magnetic levitation?"

"anti-gravity?!"

"This...this is impossible!"

The old man muttered to himself.

There was growing doubt in every sentence.

Even other officials nearby who knew nothing about propulsion mechanics could clearly sense his great fear.

He was as dazed as a penguin standing on the Serengeti savannah:

Everything he saw before his eyes was so bizarre and bizarre that he couldn't accept it.

So much so that I have accumulated a knowledge system for decades...

Faced with this situation, it is like a joke!

"Being able to perform such stable hovering, acceleration, and attitude adjustment means that its output thrust has reached an unimaginable amount. If calculated based on this, even if its dead weight does not exceed ten tons, it will still require at least several Twice that amount of fuel is needed to provide thrust to propel this ten-ton payload..."

"unless..."

"Unless what?"

Someone next to me immediately asked.

The old scholar’s ​​eyes were distracted:

"Unless...it itself...doesn't need to carry working fluid..."

"Or... it can produce working fluids by itself."

"For example...for example, it might have a fusion reactor,

It can directly discharge the ultra-high temperature gaseous plasma waste produced by the reactor and use it as a working fluid..."

The white-haired old scholar's throat squirmed and he swallowed hard.

He stuttered and said in a dizzy tone as if someone had given him a concussion.

He is a professional at this.

Traditional rocket engines are expensive and inefficient.

It is because the ratio of fuel consumption and working fluid production is too low.

The compound fuel working medium is used for propulsion, and the fuselage must carry its own fuel.

Otherwise, working fluid cannot be produced, let alone thrust.

For example, NASA's Saturn V.

It weighs three thousand tons, equivalent to a cruiser.

The actual payload is less than fifty tons.

With such efficiency, I think of colonizing Mars...

I'm afraid we really need to build a super-giant rocket whose tonnage can catch up with an aircraft carrier.

And if chemical fuel working fluid is not used for propulsion...

The aerospace workers before the catastrophe did indeed develop ion propulsion technology.

But it was still a trial product that could only stay in the laboratory.

With single-digit thrust, it is difficult to push a thermos cup.

Before the catastrophe, the gray-haired Professor Wang was the person in charge of this project.

That's why he acted so shocked at this time.

"The legendary refrigerant-free engine was actually found in a place like this..."

"How is it possible? How could there be an interstellar civilization of this level in the secret realm?"

The white-haired old scholar held his head in disbelief.

His eyes were filled with the horror of a world that was on the verge of collapse.

"Ion thruster? No working fluid engine?"

"Professor Wang, what are you talking about?"

Deputy Director Wu is responsible for the executive management of the base city.

I don’t know much about these scientific research matters.

but...

"Is it possible...that you have figured out what technology these aliens use?"

Then, he said hopefully.

Although Director Wu doesn't understand scientific research, he has a strong ability to draw parallels.

After asking the question, I immediately thought of this.

Hearing this, Professor Wang showed a bitter smile on his face.

"It's impossible for an old man like me to analyze technology, but he can understand it clearly."

"It's precisely because I understand it that I feel powerless..."

Ion propulsion!

This is what is called electric propulsion.

A propulsion technology that generates thrust by inflating a reaction chamber, subsequently ionizing the gaseous medium into plasma, and ejecting a plasma plume backward.

Before the catastrophe, a certain institute led by Professor Wang.

Only one was built in the laboratory. By consuming a lot of electricity and using a series of complex instruments for conversion, a trial prototype machine that could barely push a piece of paper was produced.

And in the video...

"This is already an extremely complete and extremely advanced ion thruster.

It can even be integrated into an aircraft not much larger than the J-20,"

Professor Wang murmured, trying his best to estimate the gap in technological level between the two sides.

"If we also consider that there is a practical small nuclear fusion reactor that is likely to exist on the fuselage, is removable and detachable, and does not generate high temperatures enough to affect the fuselage, this gap..."

"How big is it?"

Someone at the conference table couldn't help but ask.

Could it really be like what those science fiction novels describe...

Like a swaddled baby, and an adult?

"It's even more exaggerated than that. The other party is obviously a civilization with mature interstellar navigation capabilities, and we haven't left our home star yet,"

"It's not a baby versus an adult at all, it's an ant versus a dragon."

Professor Wang smiled bitterly.

There was dead silence in the conference room.