Every Exam must be Full Marks! The Whole People Kneel and Beg Me to Repeat The Reading

Chapter 129

Chapter 129 College Entrance Exam Questions: Research and develop a barrel with a service life of one hour! A new civilization for mankind! Su Chen sees the future! (Fourth!)

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The moment I saw this physics problem,

Su Chen is shocked!

this physics problem,

Obviously it has been transformed by Zhang Yanghao and the proposition group!

The above is the same as the biology topic,

It is to integrate some high school knowledge into the background of the whole era!

This topic is:

"Since World War II, the military industry has developed rapidly, especially the gun steel industry.

"The so-called gun steel is one of the steels used for conventional weapons.

"Because at the moment when the gun pops out of the chamber, there will be a severe temperature rise and energy explosion effect, and the heavy artillery shell squeezes the tube wall, forming a high tangential stress, and the barrel is subjected to this alternating rapid heating ( In 0.001 seconds, the temperature rises to above 710 degrees Celsius and rapid cooling (10 degrees Celsius), the structure of the steel produces repeated phase transformation of austenite and martensite.

Under such circumstances, it is known that the speed of a gun ejecting the chamber is 400 meters per second, and the mass is 3 kilograms. According to high school knowledge, according to the following parameters, (parameters are listed in the table below)

Please solve for the momentum of the run to unloading. Assuming that the energy dissipated to the gun barrel accounts for one third of the total energy of the projectile, the specific heat capacity of the gun barrel is calculated. ""

this question,

It's very law-abiding, don't look at writing so much,

But it's actually not difficult!

There are various parameters, in fact, it is a problem of energy momentum formula, and then there is a specific heat capacity formula to solve the problem of specific heat capacity!

It's easy!

This is a flexible application of the topic...

Candidates who really know how to do it know what to do at a glance, but those students who are not smart enough to see such a large amount of data hidden in small essays will be stupid on the spot!

For Su Chen, no problem!

Su Chen exclaimed,

This year, this proposition group really worked hard!

What he cares most about is a small question at the bottom of this question!

"According to the characteristics of the gun barrel obtained, it can be seen that the barrel heats up to a very high level within a very short 0.0001 seconds... Therefore, currently our world's top gun steel cannot be long The use of time, the current top gun steel, the real service life of continuous rapid fire is also extremely short."

"Please combine your knowledge and start the association, how to make a gun barrel with an actual service life of one hour?

(This question is a divergent thinking question, and the score is 0.5 points.)

. . . . . . .

Wonderful!

Wonderful!

Su Chen exclaimed,

Zhang Yanghao, and that Hua Shaoan, have something!

This little question will not arouse suspicion at all!

even,

Just like Hua Shaoan's question-setting method last year, it is a clear stream among the rigid college entrance examination questions that make people decide!

and,

this question,

very uncommon,

The candidates are all high school students, and they are very interested in this kind of industrial and military things...

Little is known!

In their minds,

In the understanding of most people,

Continuously firing a barrel for an hour?

Then, don't you just have a hand!?

In the turning point incident of World War II, Li Yunlong bombarded Ping'an County, how long did the artillery bombing bomb!?

There are so many artillery pieces in the movie, and they often carry out intensive fire suppression...

Bombing for hours in a row!?

Which of those rapid-fire guns didn't fire for a long time!?

Not to mention rapid-fire guns,

Let's just say it's a barrel, a machine gun, which one isn't a crazy chug!?

What's so hard about an hour?

Many people will think, how difficult is this!?

but,

They only know one, but they don't know the other!

Therefore, many people will misunderstand,

But it's not important, the important thing is that this theme is 0.5, it's nothing if you lose it!

Su Chen knew the answer the proposition group wanted to know right away.....

but,

he did not write,

But on this subject,

Rapidly expanding circular expansion!

Please combine your knowledge and expand the association!

This is like nothing!

Not a limit for Su Chen!

Because Su Chen is in the examination room of the state of God, his knowledge is infinite!

How to make a barrel with a practical life of one hour?

Currently,

The most excellent gun steel material in the world, the continuous rapid fire time and the effective time together are only about ten seconds!

Notice!

This time, is the effective time, is the effective life!

That is,

The shell is fired, from reloading, to firing...to the next...

Among all these times, only a very small period of time, that is, the moment when the shell ignites and rubs the barrel of the gun, can be regarded as the effective time and life!

Each shell is fired, and the flight time of the shell in the barrel is about 0.006 seconds.

That is to say, firing five hundred shells in a row will add up to an effective use time of only five seconds!

The limit in the world in front of you, ten seconds, is already the level of a thousand artillery salvos!

Strong!

And barrels that last more than an hour,

That is to be able to fire more than 700,000 shells, without any cooling in the middle, pause!

It's just to put more than 700,000 shells on it!

Shoot hard!

That gun barrel...

How cool!?

That is simply invincible!

. . . . . . .

all of a sudden,

In front of Su Chen,

A perfect grand blueprint opens up!

In this moment,

There is a lot of knowledge in his mind!

This knowledge directly surpasses the limits of all human science and technology materials...

even!

It has been directly upgraded to the level of molecular and atomic applications that humans cannot control at present!

"This...." ✓ 99

"This is the knowledge of the second civilization level!

Su Chen's pupils burst out with intense joy,

He seems to see the future of mankind!

Currently,

The human world civilization is still in the initial stage of the first civilization stage!

It is far from the gradient of the second civilization!

At that time, someone proposed three levels of civilization,

The first civilization level is to make perfect use of all the resources of this planet, complete nuclear fusion, and possess Dyson spheres. At present, humans are far from reaching it.

The second civilization level is to make perfect use of the energy in the entire solar system!

The third civilization level is to use all the energy of the galaxy perfectly!

The leap of each energy level actually represents the endless technological update and rise.

There is a huge gap!

Humans are still at the beginning of the first stage of civilization.

If you want to reach the second civilization stage, at least ten thousand years later!

At this time,

Su Chen from the aspects of materials science, molecular materials, atomic materials,

A glimpse into the future!!!

Shock!

Shock!

Is it still his shock!

"It turns out that the material science of the second civilization level...is so shocking!

Su Chen was stunned!

Rao is that he has seen the truth,

When proving the Riemann conjecture at that time,

He saw part of the truth of the mathematics of the universe, the divisions of prime numbers and prime numbers. . . .

But at this moment,

He is a real witness to the future!

"This little question..35

"It looks so simple...

"18"

"But it directly crosses the technology of civilization level!"

Su Chen is also someone who has seen big scenes.....

But this time, he really felt from the bottom of his heart...

world,

Really changed because of him!

This topic is underestimated!

AU!

Taking high-pressure tank guns as an example, if you can research materials that can last for ten seconds, it is enough for you to be an academician with your eyes closed! It takes less than an hour!

one hour,

At present, all the technologies of human beings, all metals... are completely unattainable!

Do not!

Not all human technology, and metals,

But all the resources on the entire earth, the hardest materials, are far from reach!

Human civilization wants to reach this point, and the routine develops...

a thousand years!

Enough too!

Because all the material limits of the human world are there,

The structure of molecular atoms makes it impossible to have such a godlike material!

Compared with the strongest material of human beings, it is not a matter of being stronger...

It's a class leap!

It's like comparing the strongest material of human beings to a piece of paper, then this one-hour material is the alloy that makes up the fucking Gundam!

It's like saying...

That is the limit material of heat resistance. Within the known thermal limit of human beings, this material, almost... no, not almost, can do no wear at all!

It's almost impossible,

Because even if a piece of steel is rubbed with paper, at a level invisible to the naked eye, the steel is lost!

top speed,

maximum temperature,

highest energy,

maximum pressure,

Highest wear...

There's nothing you can do about this material!

If this material does appear,

So simple,

God,

Can't even move him!

How many guns does God have?

As soon as this material appears,

owner,

That is God!

What ancient artifact, what peerless divine weapon, under this material, it will shatter at a touch!

Su Chen thought of these in an instant....

but!

To achieve this level of...

It is necessary to start from the inside of the material!

Combining a high-precision material...

From the molecular level, to the atomic level, change the loose parts of molecules and atoms!

Let the molecular atoms form an orderly and compact arrangement!

It will take at least tens of thousands of years for humans to control the arrangement of atoms and molecules!

in other words!

This even involves strong molecular force materials!

That is, the water drop material in the famous three-body!

"Made out of this material, I'm the god of human beings!

; "Father of Earth Civilization! 55

Su Chen's heart is very happy!

18....

this question,

There is a flaw!

That is--

"No time limit!"

"Now, it's a little troublesome!"

"If the question is, how to cast a gun barrel with a service life of up to one year within a year...

"Then according to the law of causality, the system must give me a perfect answer! Let me complete a technological breakthrough within a year! 35

"But what a pity!"

"Without this one-year limit...""

"So, the answer to me is that I don't have time, it's a step-by-step process."

"Although it is also the fastest speed, it is far less than a year!

"It will take decades to carry out mining excavation and upgrade the technology of related industries...

"" "And it takes the whole country to invest, the whole country can do it!"

"Add my knowledge, skills, etc...that's fast! 39

Su Chen secretly calculated the answer,

Decades seem like a long time,

But for human civilization, it is almost negligible!

From the current initial stage of the first civilization level, to the material level of the second civilization level,

That crossing is equivalent to casting a Barrett from, in the primitive world!

All current industrial bases,

It's like nothing!

But the system has given the standard fastest path,

It can allow Su Chen to complete the industrial upgrade within a few decades!

This is a huge material system!

These knowledge reserves, which are equivalent to the knowledge of a civilization's materials, are all stuffed into Su Chen's mind!

From today, his brain,

It is the most precious information and library of human beings!

. . . . . . . .

"But....within a year, I can make a barrel that lasts 10 minutes!

Su Chen thought!

Can't hit the level of strong molecular force in one year,

It is impossible to make all the molecular atoms of the gun barrel orderly and tightly arranged...

But, on the surface, he was able to, within a year,

Rely on technology and shortcuts to do it!

The gun steel material alone, using metals and other components to arrange the molecular atoms on the surface in an orderly manner, can be fired in ten minutes!

That is to say.....

One barrel can continuously fire more than 100,000 shells without interruption!

The largest heavy artillery with the largest caliber can fire continuously for days and nights!

Even the fastest rapid-fire guns,

Can be fired continuously for hours without cooling down!!

TTT......

It cannot be calculated in this way, the firing energy of heavy artillery and rapid-firing artillery is different, the energy of rapid-firing artillery is not comparable to that of heavy artillery, and the time is even longer.

Rapid fire cannons can also fire for days and nights!

If you take a short rest, intermittent firing...

Under overall management, shooting for the last few months is not a problem!

A few months, a barrel!

What a concept!

Within this continuous firing time, with sufficient shells,

Fire coverage! Both truth!

. . . . . . . .

"When the exam is over... This project must be moved to (the one who got the money)!

"And....this huge project cannot be completed by a single system of Rongcheng Aircraft Factory..."

'New ore resources are needed, and the nation's steel reserves are poured into...

"National technology investment...

"In a year, the country will tighten its belts..."

"To achieve it!

"And once it reaches...

"That is the era of new materials. The first piece of such material is refined, and it will be logical in the future..."

"This material is not just for making gun barrels..."

"Leave it a little bit and go into mass production.

Build planes, submarines, aircraft carriers...even cars...99

"What kind of scene is that!?

Su Chen can't even think about it!

Aircraft carriers made of this material...

What will happen?

f*ck!

Nuclear bombs can't destroy a single bit of his external materials!

hit?

Even if it were hit by the Ford on the opposite side, it would be hitting the stone with an egg!

The opponent's aircraft carrier fell apart, and our aircraft carrier couldn't even drop off a scrap!

Such a material, to make a drone... Then it is a flying missile with unlimited use! Under the indestructible material, what can stop the impact of this drone?

You don't need to use any explosives and gunpowder, pure force collision can destroy everything!

He can destroy everything, and everything of human beings can't hurt him in the slightest!

The bullet made of this material is the bullet of Yan Wangyan Shuangying!

Crafted weapons, knives, daggers, etc...

That is the real artifact! The clothes, armor, and defense equipment made are not invincible in defense?. There are also some hoes, electric drills, hammers... and other tools..

"Sisi Si!"

Su Chen shivered, "No way, the car is too fast, the car is too fast, I don't dare to think about it anymore, I don't dare to think about it anymore!"

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