Into Unscientific

All students who have fallen into the sea from a height of 10,000 meters know this.

When you're high enough and fast enough, the water feels harder when it hits it.

Generally, if it falls more than 100 meters, the 'effect' is basically equivalent to falling on the concrete floor.

Many marketing accounts or so-called popular science bloggers will tell you that this is because water has surface tension, but this is not actually the case.

The actual reason for this situation is actually the incompressibility and inertia of water under normal conditions.

for example.

For example, if you put your finger in the water, what happens?

Your fingers occupy the space where the water originally existed. This part of the water moves due to force, making room for your fingers.

There is still incompressible water next to this part of water, which cannot merge with this water, so it can only squeeze the water in other locations to make it bulge towards the water surface.

In other words, when a finger enters the water, it is the movement of water that squeezes the volume of a finger, and there is no buffering time.

So when the speed is low, the starting point is ripples, and when the speed is high, the water splashes.

This is what happens when the human body enters water. If you want the water to get out of the way within 0.1 seconds, the force required is not very large, but your speed is too high. If you want the water to get out of the way within 0.0001 seconds, the inertial force of the water is very huge. The human body can't stand it.

The same is true for the current Dongfeng-2.

When it fell into the water, its speed was close to Mach 10. The moment it was subjected to the inertial force of the water surface, cracks appeared on its surface because it could not bear this force.

In a very short time.

Bang bang bang.

These cracks quickly expanded to the entire body surface of Dongfeng-2, and at the same time touched the receiving structure of the warhead.

In 0.003 microseconds.

The nuclear fuel in the warhead completed the chain reaction instantly. The first fission reaction occurred at a temperature of approximately

15 million degrees.

This temperature is not measured data. The calculation principle is to convert the average kinetic energy taken away by the reaction fragments into temperature. That is, the characterization method is the average kinetic energy of particles in a certain volume within a short period of time.

Immediately afterwards.

The huge radiation energy is quickly transmitted to the secondary through the radiation channel in the form of soft X-rays, compressing the lithium deuteride in the secondary.

Within three microseconds.

After the lithium deuteride is compressed, it also squeezes the "spark plug" composed of uranium 235, causing it to exceed the critical state.

At this time, the neutrons generated by the secondary explosion just enter, igniting the "spark plug" and causing a fission explosion.

In this way, the primary explosion and the "spark plug" explosion work together on the lithium deuteride layer, forming an internal and external pincer attack, which finally generates a high enough temperature and density to trigger the fusion reaction.

The temperature at this time was as high as .

150 million degrees!

Theoretically speaking, at this temperature, any substance will instantly turn into fly ash - except for Boruto.

but

Don't forget, this is not land, and the missile does not penetrate straight into the water. Its trajectory is a dive at the end of a parabola, and there is an angle between the warhead and the horizontal plane.

The value of this angle is not an arbitrary number. Its value has been accurately calculated in advance, and its size is.

14.86°!

For the structure of Dongfeng-2, when this angle is combined with the ocean environment, a miracle in the field of physics will be born.

According to historical development.

In December of this year, physicist Freeman Dyson, the inventor of the Dyson sphere concept, will write a famous memo.

In the memo, he discussed eight possible new weapons systems that appear to be possible in the near future. Dyson also outlined the potential military uses and potential harms of these systems one by one.

One of the eight ideas Freeman discussed in the memo was to use gigaton nuclear weapons to trigger waves.

There is a rather horrifying passage describing the effects of detonating a gigaton mine in the Mariana Trench:

"Quantitative analysis of the damaging effects has not yet been conducted. Rough estimates suggest that the resulting waves would be 200-300 feet (about 60-90 meters) above sea level, or within 200-300 miles (320-480 kilometers) of the coast. On land – it depends on which limit the wave reaches first.”

However, later research by Bernard Le Mevoirt refuted this conjecture. He proved another physical process:

When a nuclear bomb explodes underwater, it will create a cavity filled with hot gas. This cavity will first evaporate the seawater, and then the cavity will float up to form a huge water mushroom.

In other words.

And if the missile dives into the sea at a certain speed, its own impact force will first squeeze out an area without seawater, and then the air will expand in volume when heated, and the vacuum zone will draw in the nearby low-altitude air, thereby generating airflow from below. Hold the clouds.

In the gradient descent method, the iterative formula is xk+1=xkγf(xk), where γ is a fixed value greater than 0.

Assume that each xk comes from a continuous function X:R+Rn, that is, the divergence of nuclear bomb energy is 360 degrees, and further assume that each divergence is random.

Then there will be X(t+γ)xk+1=X(t)xkγf(X(t)).

This form is very interesting. If γ→0, then the left side of the formula is the derivative of X at t. In this way, X is the solution of the following ordinary differential equation:

X˙(t)=f(X(t)).

By replacing the gradient flow with linear interpolation between each test point in gradient descent, you will find that one of the trajectories is empty.

Introducing the structural parameters of the Dongfang-2 missile, the incident angle corresponding to this trajectory is.

14.86°!

That is to say, due to the opposition of air flow and heat, this area will form a vacuum area that will not be affected by impact and high temperature.

This area is also called the saddle point, which means the lowest point of the saddle.

This concept can be roughly understood as the eye of a typhoon. Even a 17-level super typhoon, the eye of a typhoon is still extremely calm—although this explanation has nothing to do with intercontinental missiles.

Of course.

There is still a distance between this area and normal temperature. After all, it only isolates conduction and convection. The heat brought by radiation cannot be isolated. After all, this thing carries rays.

But due to the lack of the first two, the temperature of this saddle point can only reach seven or eight hundred degrees.

For a data cabin made of high-temperature resistant materials, this temperature is still three to four hundred degrees Celsius away from its limit.

That's right.

At this moment, the object appearing in this area is the missile's data cabin!

During the previous discussion on missile matters within the base, some comrades once raised a question:

The temperature at the explosion center of the missile is extremely high. If it is a huge object, such as a cruiser or aircraft carrier, there may be some remaining parts of the body, but the data warehouse is only the size of a washing machine. How can this thing be at the center of the explosion? How to preserve it under high temperature?

For this reason, some base leaders also believe that the data capsule may fall off first and appear one or two kilometers away from the center of the explosion, so that it can be safely avoided from turning into ashes.

Opponents believe that this approach will affect the trajectory of the missile, and the parameters recorded by the data cabin should also include some data at the moment of the missile explosion. If it falls off first, a lot of core information will be missed.

Just as the two sides were in a stalemate.

Yu pushed up his glasses and quietly took out the saddle point area data he had calculated. (Note: In the original history, the saddle point was calculated by Yu, and what was very outrageous was that the 150 computer team of Yanda was doing the calculations at the same time. Yu Da The 150 machine calculated the saddle point six hours in advance)

This is also the wonder of physics.

It can give particles a spin of 1/2, allow matter to appear as a wave-colored Einstein condensate, allow the detector returning to the earth to float gracefully in a waverider orbit, and can also allow hundreds of millions of people to float on it. There is a relatively low-temperature "forbidden zone" in a high-temperature environment.

If you don’t learn mathematics, physics and chemistry, life will be full of magic.

His eyes returned to reality.

The size of the data cabin has also been calculated in advance. The moment it leaves the missile body, the data cabin the size of a washing machine enters a special saddle point area.

The homeomorphic structure of the Calabi-Yau manifold allows the shock wave to quickly form a hedging area according to the mathematical rules of the Jacobian determinant, like the center point of a vortex, with the surrounding "water flow" (actually energy) rotating at high speed, but It remained motionless.

Then seconds later.

The data cabin floated up with the cavity and sprayed to the highest point of the water mushroom.

And then.

Under the influence of gravity, it completed a fall of several hundred meters.

snap——

After falling back to the sea.

The two programs inside the data cabin entered the startup state at the same time.

The first program is a small ball similar to a gyroscope. According to the design of Qian Wushi and others, it will automatically emit dye to mark its position after seven minutes, which is the theoretical maximum duration of the surge.

As for the second program.

Its countdown time is longer, up to fifteen minutes.

However, although this program is long, the meaning it represents is not very wonderful - it is a countdown device.

If the rabbits cannot find the data capsule and enter the correct password before the countdown, it will actively self-destruct.

At that time, although the other national forces will not be able to get a good deal, the efforts of the rabbits will also be in vain.

At this moment.

outside world.

As the missile exploded, a water column hundreds of meters high instantly filled everyone's field of vision.

The huge sound shocked not only everyone's eardrums, but also their hearts.

At this moment.

The neon Bailu command ship.

Looking at the water column more than 20 nautical miles away, Hanpuri pinched the wound he had made earlier in a daze:

"God, the Chinese have really developed an intercontinental missile."

Before coming to Asia, Hampuri had participated in many nuclear tests across the sea. He was still present when the first Atlas intercontinental missile exploded.

As an experienced 'industry insider', he naturally made an accurate judgment at the first opportunity - this is definitely a powerful intercontinental missile!

even

Stronger than Jupiter!

In other words.

From today.

There is one more country in the world that has mastered intercontinental missiles - although this missile is still more than 200 kilometers away from the intercontinental range in terms of range, this is obviously just a deliberate move by the Chinese.

The world situation is becoming more and more complex.

However, Hanpuri's absence only lasted for a few seconds, and his entire attention returned to reality:

"Marchioni, contact Sugawara Keisuke immediately and tell him that he must grab the Chinese data cabin!"

"In addition, all helicopters will be dispatched to search the sea surface in a blanket manner. If the indicator area is found, report immediately!"

"By the way, I remember that the Maple Leaf Kingdom's warship at that position is the Kingston?"

Marchionne nodded immediately:

"Yes, the captain is Major Highbury."

The navy of the Maple Leaf Kingdom is called the Royal Navy of the Maple Leaf Kingdom. From the literal meaning, it is not difficult to see that there is an inseparable relationship between it and John Bull.

Historically, this navy was officially named after King George V. The entire navy's equipment was also provided by John Bull. It is one to two generations behind the active fleet of John Bull.

"."

Hanpuri was silent for a few seconds, and finally a trace of cruelty flashed in his eyes:

"You go contact Highbury and the Xianyang on the other side of China, and ask them to do everything possible to prevent the Chinese from getting the data cabin."

"In addition, privately tell Highbury to evacuate the crew to the deck and prepare lifeboats."

Marchionne was stunned for a moment, and it took him a few seconds to realize what Hanprey was thinking:

"Mr. Hemprey, what do you mean?"

Han Puli glanced at him, with a sad expression on his face:

"After today, China is no longer the same China. At least we must use the so-called 'reason' when dealing with them."

"Okay, we are pressed for time, so go contact them quickly, and tell Highbury that we will compensate them with a better warship than Kingston."

Marchionne was silent for two seconds, and then nodded heavily:

"I see."

After Marchionne leaves.

Hanpri walked to the window alone and looked at the surging sea in the distance.

As the core consultant in the Asia-Pacific region across the sea, Hanprey has seen all kinds of storms, but throughout the first half of his life, he has never experienced such a situation.

He became a witness to a historical node, and all the instructions he gave were likely to change the future of the entire human race.

At the same time as Hanprey gave instructions.

On the ocean several miles away from them.

Wang Anyi also held the handle of the cabin with both hands, looking upright at the explosive heart in the distance.

The height of the water mushroom is about two to three hundred meters high, and its range is about a hundred meters. The waves set off by the water column continue to surge outward like a tsunami.

Even though they were several nautical miles away from the center of the explosion, the carrier-based craft still encountered strong surges.

If it were another hundred meters forward, the small boat might not be able to survive the surge for half a minute.

Think of this.

Wang Anyi couldn't help but glance at Shu Xingbei, who was already vomiting wildly.

Although this little old man has a bad temper, he is really capable.

Wow.

The turbulent waves kept washing against the hull of the carrier-based boat, but as time passed, the fluctuations in the sea surface gradually began to calm down.

Then quickly.

Toot toot.

The sound of a helicopter appeared above everyone's heads.

Three or four of the helicopters are Z-5s that the Rabbits have completed test flights but have not yet been finalized and put into production, but more of them are reconnaissance aircraft from European and American countries.

These helicopters are equipped with divers who can dive into the water as soon as the beacon is discovered.

However, the final salvage work of the data cabin still needs to be completed by the ship. After all, its size and weight are not small, and some of its parts need to be processed as soon as it is salvaged and put on the ship.

Then Wang Anyi glanced at Sugawara Keisuke behind him and was about to give the order to move towards the center of the explosion.

As a result, before he could speak, Gui Zhaolin's voice came from the communication device:

"Old Wang, the indicator area of ​​the data cabin has been found!"

Note:

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