Into Unscientific

in space.

Following Xu Yun, he clicked on [Yes].

call out--

The thread-bound book that he was holding in his hand suddenly flew out and floated in front of Xu Yun.

The book cover is facing Xu Yun head-on, as if a soul that has just woken up after sleeping for many years is looking at Xu Yun.

After a few seconds.

The pages of the book were flipping, and the whole book slowly glowed with golden light.

Immediately afterwards.

On the right side of the book, another phantom of a thread-bound book of the same size appeared.

After a few seconds.

This shadow gradually solidifies, and it says

"Yongle Canon Volume 22875-Volume 22876".

followed by book three

Volume Four.

Book Nine.

Volume 137

Five hundred and ninety first volume.

Three thousand three hundred and eighty-two volumes.

until

"Yongle Dadian Volume 1".

ten minutes later.

The original version of Yongle with 11095 volumes and 22877 volumes is surrounded by Xu Yun, and there are faint sounds of bells, drums, rituals and music all around.

Actually.

In the year 2022 when Xu Yun travels, one can occasionally see such a view on the Internet:

The significance of the book "Yongle Dadian" lies only in ancient times. In modern times, it is just a decadent memorial day, with little objective value.

This is a very, very narrow and extreme view.

A treasure of the Chinese nation is by no means as simple as spiritual comfort.

Here I will spend a little more ink and talk about whether "Yongle Dadian" has any practical value.

First things first.

Up to now.

The original editions of many ancient Chinese books have been lost, and quite a few literary works are only known by their titles, but not their specific contents.

Today's first reference for studying ancient Chinese history is the "Siku Quanshu", compiled during the Qing Dynasty.

However, the entire "Siku Quanshu" has greatly changed the content involving violations, and deleted a large amount of content.

For example, "Three Kingdoms Shushu Guan Yu Biography" records that after Guan Yu's death, his posthumous posthumous name was Zhuang Miaohou.

But when compiling "Siku Quanshu".

Emperor Gaozong of the Qing Dynasty believed that Zhuang Miao was belittling Guan Yu.

Therefore, the officials of the museum were ordered to change Zhuang Miao into Zhongyi to show his awe-inspiring recognition of his efforts to help Yan Han and his integrity.

Isn't it ridiculous?

There are many similar examples, and the entire "Siku Quanshu" is full of secondary creations, misinterpretations and even fabrications out of thin air.

However, despite this, it is still the first choice for reference at present.

The "Yongle Dadian" is not the case. It has not made any revisions and whitewashes to history-this is not just Zhu Di's big talk for the sake of gold, but the hundreds of copies of "Yongle Dadian" preserved in later generations have proved this.

With this alone, "Yongle Dadian" can beat "Siku Quanshu" to the point where there is no dregs left.

Therefore, if the "Yongle Dadian" comes out, it will become the most authoritative set of reference documents.

Of course.

Seeing this, there may still be people who will continue to fight:

"Then what? What's the use of the literature? Are you using it to make yourself happy?"

This involves the category of a culturally specific field.

It is called the Chinese Civilization Circle.

This civilization circle covers the entire Southeast Asian region and belongs to the core circle of the Eastern civilization circle.

Neon, Bangzi, and Cochin are all radiation areas of this circle.

However, in recent years, the mainland has been losing the right to speak and even define the Chinese civilization circle.

The most typical example is the application of the Bangzi Kingdom.

The behavior of Bangzi Country’s application for World Heritage is disgusting, but have you ever thought about why Bangzi often succeeds in applying for World Heritage?

Although UNESCO is not very strict, the rules on the surface must be followed. It is impossible to pass the application to them - then the stick can be admitted directly.

At least on the bright side, they also have to follow the process.

And this process is the original record of many Korean documents submitted when applying for World Heritage.

The modern history of Bangzi is different from that of Huaxia. Although it has also been oppressed by neon lights, there has never been such a destructive looting as one crow and two crows.

Therefore, in Bangzi country, they always kept some original ancient books.

Such as the Dragon Boat Festival, such as tug of war, such as falconry, such as movable type printing, and such as the 100% Chinese musical instrument Sheng.

When Bangzi applied for these intangible cultural heritages, he provided the originals of all the corresponding ancient books.

When we protested, they directly spread their hands:

Okay.

Rabbit, you said that this thing is yours, so you can show the evidence of the original or rubbings.

The rabbits are at a loss for words at this time - we have already applied for the heritage title we originally applied for.

For example, there is the mortise and tenon technique originally recorded.

In the early years, it was rumored that it was applied for by Bangzi, but in fact we took it down in 2009. (ihchina.cn/directory_details/11785, this is the website of the Digital Museum of Intangible Cultural Heritage)

The rest of the intangible cultural heritage that has not been applied for is not because we don't want to apply, nor is it because we are short-sighted.

But there is no substantive and systematic evidence.

Another example is that there is no Chinese medicine doctor who really belongs to where the hammer falls.

There are often some stick fans on the Internet who are washing the ground, saying that the sticks are not actually occupying Chinese medicine, they are applying for Eastern medicine, don't get me wrong, Smecta.

Yes, it is true.

But the reason behind it is not that Bangzi doesn't want to occupy traditional Chinese medicine, but that they can only use "Dongui Baogam" as evidence for their application for world heritage.

And if "Yongle Dadian" can appear in the world.

"Su Shen Liang Fang", "Bo Ji Fang" and "Shang Han Wei Zhi" these ancient books that have been lost and can become a system have been found, and the rabbits will start to apply for the World Heritage of Traditional Chinese Medicine at the beginning of the new year.

Even many intangible cultural heritages that have been snatched by sticks, we can appeal and get them back.

And the above is only a small part of the usefulness of "Yongle Dadian" after it appeared in the world.

Can it still be said that "Yongle Dadian" has no objective meaning, is a decadent mascot, and is it a self-indulgence?

Obviously no.

It's not that "Yongle Dadian" can't be realized into foreign exchange, or can't be built into aircraft carriers or spaceships, so it has no real value.

The line of sight returns to reality.

After all the volumes of "Yongle Dadian" are fully realized.

call out--

These more than 10,000 ancient books suddenly moved automatically without wind, and slowly floated upward like an elongated DNA helical structure.

Finally disappeared at a high place.

Looking at the ancient books that disappeared at the end of the space, Xu Yun didn't have the slightest regret in his heart that he chose to bring "Yongle Dadian" to the world.

This wonderful work is the treasure of the Chinese nation and the wealth of a country.

In this world, no one is qualified to take them as their own.

Xu Yun just quietly watched the volumes of "Yongle Dadian" disappear, and flew to.

"Yongling?"

Xu Yun muttered to himself, with anticipation in his eyes.

Yongling is one of the Ming Tombs, located at the southern foot of Yangcuiling in Jinling.

According to the records of "Da Ming Hui Dian".

The diameter of the treasure city of Yongling is 81 feet. The Yan En Hall has seven double eaves and nine side halls on the left and right. Its regulations are second only to Changling.

Although later generations have shown through remote sensing that the interior of Yongling has accumulated water.

But since the halo has confirmed that the "Yongle Canon" can be found in the world, it will definitely be unearthed in Yongling in its entirety.

Xu Yun is looking forward to this day, it will be the day Huaxia finds its 'root'!

Just after the last volume of "Yongle Dadian" disappeared.

A curtain of light appeared in front of Xu Yun again:

【Clarify the source】:

[The buff effects that can be obtained after the "Yongle Canon" is alive, national cohesion +10, lawful notarization +10, social hostility -5, evil deeds -5]

"Is it true?"

Looking at the reward that appeared in front of him, Xu Yun couldn't help touching his chin.

Sounds like a good buff?

After all, these four attributes of rewards are almost all links that are urgently needed by the current society.

Nowadays, with the development of the Internet, you can often see all kinds of true and false news.

Some are real social chaos, but after they broke out, they chose to criticize and silence, which aroused people's anger.

Some are ghosts and snakes acting as demons, stirring up troubles to bring the rhythm and then sneaking away, continuing to rush to the next hot spot.

All kinds of situations are intertwined, causing the current Internet to be chaotic and hostile.

Don't say anything else.

Even in the small circle of online literature, the author of "Infinite Horror" is far away from Z Da, and the author of "Shao Song" is nearly as grenade afraid of being slandered by others.

Even if it is proved innocent in the end, it will be difficult to calm the impact of the incident.

“Hope it's useful”

Then Xu Yun sighed, and put the target back on the light ball in front of him.

So far, he has issued eight rewards, namely:

Time and Space Album.

Thinking card set.

Realistic mystery eggs.

Party A is empathetic card.

Hemostatic gelatin.

MR technology.

Leather pouch containing Gaussian manuscripts.

"Yongle Dadian".

There are fourteen light spheres, and there are still six left.

Then Xu Yun pondered for a moment, and clicked on the third light sphere on the right.

boo~

this time.

What appeared in front of Xu Yun was surprisingly

Another slightly smaller photosphere.

Xu Yun: "?"

What about the matryoshka here?

He stretched out his hand tentatively towards the small light ball, and tapped lightly.

The small light ball did not shatter like the reward light ball, but trembled slightly, as if Kun Kun was talking about what you are doing.

Then soon.

A reminder appeared in front of Xu Yun:

【Computing Power Module No. 1】:

[Special reward, it will be in the form of a common main processor after it is realized, and it can increase the computing power of artificial intelligence by 1.14514% after use]

[Remarks: The artificial intelligence used by Wallfacer is exponential growth intelligence, 1% computing power is about 21220TFlop/s, 5% computing power is about 432678TFlop/s, and 10% computing power is about 2.3Exaflop/s]

Is it a calculation module?

be honest.

This reward was within his expectations.

After all, in the 1850 dungeon, he helped Babbage and Ada to change their lives against the sky.

Not only did the analytical machine come out, but even the original computer was invented 100 years in advance.

This approach is bound to have an extremely far-reaching impact on the future of the dungeon. If the degree is not given a computer-related reward, it would be unreasonable.

Students with good memory should still remember.

Xu Yun got an artificial intelligence or artificial mental retardation during the settlement of the old Su dungeon, and could only send a drooling emoji.

Later Xu Yun named it Mimi.

Although this thing can grow automatically, the growth rate per second is only .

0.0000000000000000000000000000000001%.

That is to say, Xu Yun has been surfing the Internet for a whole year, and that mental retardation can only reach a growth rate of 0.0000000000000000000000001% at most.

Therefore, if he wanted it to really help him, Xu Yun could only upgrade through mission rewards.

For example this time.

The TFlop/s of the halo prompt is a unit, which belongs to the category of FLOPS, which is the number of floating-point operations per second.

It means "1 trillion floating-point instructions per second", and it is also a standard for measuring the computing power of a computer.

In the latest supercomputing ranking announced on June 1, 2022, Yanjing time.

Laomei's supercomputer Frontier ranked first, with a speed of 1102000TFlop/s.

The second is Neon's Fugaku, also known as Fuyue, with a computing speed of 442010TFlop/s.

Taihu Light dropped to sixth.

Tianhe-2 ranks ninth.

Here's an interesting thing by the way.

The ranking of the top 500 supercomputers was released in 2013. When we took the first place in the past, a lot of public opinion was for face-saving projects, and there were still people in the western region who were not full.

And this time the old beauty took the first place.

It's all kinds of buffs, Zenith Star technology, and human light added to it-what's even more outrageous is that the people who said these words are all Chinese.

Sometimes the second devil attracts more hatred than the devil.

alright.

Closer to home.

Follow the prompts from Halo.

That artificial mental retardation seems to be quite special, belonging to exponential growth intelligence.

That is to say, for every 1% increase in computing power ratio, the calculation peak value will be improved exponentially.

Wait until 5%.

It can roughly reach the level of Fuyue.

And to 10%.

It will exceed Frontier twice.

The computing power of this halo reward is 1.14514%. Even if it is calculated by simple multiplication, its calculation peak value is more than 24290TFlop/s.

According to the relevant ranking of the top 500 supercomputers.

Mimi can probably be ranked around 270 (top500.org/lists/top500/list/2022/06/This is a super-calculated ranking website, if you are interested, you can bookmark it)

Before this computing power is Laomei's Centennial, followed by Huaxia's PAI-ASystem, built by Zhongke Sugon.

Not very advanced.

But not too stretchy.

The supercomputing cost of this kind of computing power is quoted at about 50 million US dollars, at most 60 million US dollars - after all, Halo does not offer discounts on electricity, as long as the construction cost is considered.

If it is through HKUST’s own channels, it should not be difficult to reduce the cost to 40 million.

According to the current development speed of Huadun Biotechnology.

In about a year, the company will have the financial resources to build such a supercomputer.

so.

This reward is quite satisfactory, it is not rb cough cough that can be used immediately, that is, combat power.

Think here.

Xu Yun temporarily put his thoughts aside.

Attention was returned to the remaining spheres of light.

Well.

There are five left.

boo~

soon.

Another light sphere shattered.

After a few seconds.

A projection of a mechanical device about three meters high, somewhat similar to the space-time shuttle that Trunks rides in "Dragon Ball", appeared in front of Xu Yun.

Seeing this, Xu Yun frowned slightly, and there was a little surprise in his eyes.

To know.

all the time.

The rewards given by the halo are either parchment with words or small thinking cards, or small objects such as helmets that they have seen before.

This was the first time Xu Yun encountered such a huge projected image.

Then he stepped forward and reached out to cover the projection.

【Gradiometer】:

[Ultra-sensitive gravity gradiometer based on the principle of thermal field, with a perception accuracy of 10^-16m/s, can undergo completely isotropic changes, and is difficult to produce]

【Drawing.jpg】

"."

After letting go.

Xu Yun's expression was slightly subtle.

When he saw this thing, he thought it was a Gundam engine, but he didn't expect it to be

Gravity gradiometer?

in 2022.

If you randomly find ten young people on the street and ask them what equipment is currently on the embargo list in China, at least seven of them will tell you that it is a lithography machine.

But few people know.

In another relatively small and unpopular field, there is also a barrier-level embargoed equipment, which is even more embargoed than lithography machines.

That's right.

It's a gravity gradiometer.

The so-called gravity gradiometer is an instrument for measuring the vertical gradient of the gravitational field.

How it works is simple:

The vertical gradient of normal gravity on the earth's surface will vary slightly with latitude and height, and the undulations of the terrain will also cause great changes in the gradient.

Therefore, as long as the relevant gradient is measured, a lot of terrain data can be obtained.

Notice.

The gradient here does not refer to the value of 9.8m/s^2.

Instead, it refers to the gravity gradient value that each object will produce at different positions on the ground.

So at the beginning, this thing was only used for mountain surveys, looking for open-air resources, statistics and statistics of vegetation coverage and so on.

But with the development of science and technology, the gravity gradiometer shows its particularity more and more.

Because when the accuracy reaches a certain level.

It can not only measure geological structure, provide data for studying earthquakes, but also detect underground mineral resources.

And then.

It was extended to the military field.

Take our homeland as an example.

Everyone knows that our country has a vast territory and a long coastline, and the sea area is naturally extremely wide.

So it has always been.

Some thieves will often put some detectors into our sea to collect various information secretly.

Some are floating detectors, which are occasionally caught by fellow fishermen and exchanged for bonuses.

Some are submersible probes that periodically patrol the ocean floor.

This situation is not easy to find.

For example last August.

At that time, the Littoral Combat Ship "Tulsa" of the Seventh Fleet, the destroyer "Kidd" and the 5th Mobile EOD Team from the Seventh Fleet Command formed the surface action group.

They conducted combat operations such as surface warfare, mine countermeasures, and anti-submarine warfare in hot waters.

It can be seen from the scene of the drill released by the Pacific Fleet.

A ship-borne helicopter was dispatched across the sea to drop and recover these "mysterious equipment" into the sea.

The equipment was eventually confirmed to be a batch of unmanned underwater vehicles, named "Swordfish".

The main function is to search, identify and track submarines, and then transmit the acquired target submarine information to anti-submarine aircraft through the internal antenna.

In the waters around us, such submersibles are difficult to count.

But if there is a high-precision gravity gradiometer, then as long as it is launched into the sky, high-efficiency and high-precision detector search can be achieved.

The Eagles were equipped with a gradient meter when they fought Laos back then, and the missile bases and radar arrays were directly displayed on the plane.

The gravity gradiometer with the highest accuracy and being used in actual combat appeared 13 years ago.

March 27, 2009.

ESA has launched a GOCE satellite equipped with one of the most accurate gravity gradiometers to date.

Its perception accuracy is 10^12m/s, which is one trillionth of the gravity acceleration accuracy.

What is this concept?

Roughly, if it is placed on a 10,000-ton giant ship, it can feel the acceleration produced when a snowflake falls on the ship.

At the same time, within 3 minutes, the average error of its accelerometer distance measurement for the same object does not exceed 1 Egstrom - Egstrom is a unit used to measure the radius of an atom, and 1 Egstrom is 0.1 Nano.

As long as this machine is hung over the South China Sea, the detector with a water depth of more than 2,000 meters can lock it out for you in minutes.

So all the time.

Gravity gradiometers are all absolutely embargoed equipment, and the degree of embargo even exceeds that of photolithography machines.

This sentence is really not an exaggeration.

It was introduced earlier.

Although the lithography machine is embargoed, it is not impossible to buy it.

At present, most of the ways to buy lithography machines in China are as follows:

The domestic company cooperates with IMEC. IMEC first buys equipment from ASML Applied Materials. After five years of use, it meets the requirements of the Wassenaar Agreement, and then resells it to domestic companies.

That is to say, if you want to buy, you can buy a 2017 lithography machine now.

This is also the reason why SMIC's lithography opportunity was detained-it was customized in 2018.

But what about the gravity gradiometer?

Let alone 2017.

You can't even buy a gravity gradiometer from 1997.

At present, all gravity gradiometers in China are self-produced and self-developed, and there are countless stories in them.

For example, Professor Huang Danian, a pillar of the country who has made amazing contributions.

In 1992, Professor Huang Danian won one of the 30 government-sponsored places to go abroad.

Under the full funding of the "Sino-British Friendship Scholarship Program", he was sent to the University of Leeds in the UK to study for a doctorate.

4 years later.

He graduated from the University of Leeds in the United Kingdom with the first place and received a doctorate in geophysics.

Later, due to work needs, he became a British citizen—according to an interview with a retired leader of a ministry, it can be confirmed that Professor Huang's "retirement of nationality" was approved by the organization, because the underwater hidden target at that time did not allow Chinese people to join the group .

At the end of 2009, Professor Huang returned to China.

Later, he served as the chief scientist of the ninth subitem of the Huaxia Deep Exploration Technology and Experimental Research Project, "Deep Exploration Key Instrument and Equipment Development and Experiment", and successfully developed the ground electromagnetic detection system, the fixed-wing unmanned aerial vehicle magnetic detection system, the crustal 1 No. 10,000-meter ultrasonic drilling equipment and other cutting-edge technical equipment.

In 2009.

The accuracy of China's gravity gradiometer is in the fourth echelon, and the technology mastered by Thailand is more advanced than ours.

In 2017, Huaxia's gravity gradiometer has reached the middle reaches of the first echelon.

Nowadays, the gravity gradiometers on our aircraft carrier are almost all the projects set up by Professor Huang at that time.

What a pity

God is jealous of talents.

In the early morning of November 29, 2016, Professor Huang Danian fainted while on a business trip.

When he returned to Changchun, his work unit arranged for him to undergo an inspection, but before the results came out, he went to Yanjing for a business trip.

When he returned to Changchun from Yanjing again, he received a hospitalization notice:

Cholangiocarcinoma.

On January 8, 2017, Professor Huang Danian passed away after treatment failed.

At the age of 58.

after that.

Huaxia's gravity gradiometer has almost stagnated, and has not produced much results. In the past five years, it has been pulled another position.

Of course.

Since Professor Huang Danian was mentioned, here is a rumor by the way.

There are often some articles on the Internet involving Professor Huang that mention such a thing:

In 2010, it was precisely because of Professor Huang's actions that the "Cobra Gold" exercise organized across the sea retreated 100 nautical miles.

And actually.

Professor Huang only returned to Huaxia in 2009. At that time, he was still under suspicion by many people, and he didn't participate in such a thing at all.

Some people's contributions are enough, there is no need to exaggerate for the sake of eyeballs, this is disrespect for the characters themselves.

The topic is back to the original place.

Right now, Huaxia's gravity gradiometer is at a standstill, and I got such a gravity gradiometer

Think here.

Xu Yun couldn't help showing a look of thought in his eyes while feeling emotional.

This reward is undoubtedly a good thing.

The perception accuracy of 10^-16m/s is definitely the best in the world.

but the problem is

How can such a military device be taken out logically?

To know.

This thing is completely different from the current painting style of Huadun Biotechnology, and there is not even a single point of overlap.

Like the previous MR technology, blood coagulation gelatin, and computing power modules, they are all in line with the current or future development direction of Huadun Biotechnology-at worst, wait a year or so.

There are also previous imidacloprid and particle orbits, which can also be explained by a flash of inspiration.

Gravity gradiometers are different.

Even if you wait two or three years for this thing, it will be difficult to explain its origin.

Not to mention the idea of ​​a flash of inspiration, even Song Huizong's IQ would not believe it.

"Then what should I do?"

Xu Yun frowned and thought for several minutes, but still had no idea.

So he could only temporarily put this thought behind him, and continue to focus on the ball of light in front of him.

14 light spheres, now only

four.

Looking at the four light spheres, Xu Yun counted from left to right while humming a song:

"Our Arsenal is invincible~~"

He hummed like this twice back and forth, and his fingers finally stopped on the second ball of light from left to right.

boo~

The light ball slowly shattered.

After a while.

A black metal plate about the size of an ordinary tablet appeared in front of Xu Yun.

Xu Yun stretched out his hand to hold it, and found that the material of the metal plate was very light.

at the same time.

Relevant explanations appeared in front of him again.

【Small Bio-Battery】:

[A special new battery that relies on internal bacteria to generate electricity. The bacteria will be in a dormant state in a dry environment. After adding glucose solution, they will be awakened and respire. During the process, electrons and protons will be released, and the silver nitrate cathode of the battery will catch them. These electrons generate electric current, which can be used for simple small power generation]

【Illustration.JPG】

".Small bio-battery?"

Xu Yun tapped the metal plate lightly with his fingers, and clicked his tongue softly.

Originally, he thought that the reward that could be put into production the fastest this time should be hemostatic gelatin, but now it seems that the definition is a bit early.

Microbes generate electricity.

This is a very common scientific concept in 2022.

The technique dates back to 1910, when British botanist Mark Pitt discovered a situation:

The culture solution of several bacteria can generate electric current, so he used platinum as an electrode and put it into the culture solution of Escherichia coli or common yeast, and the first bacterial battery was "born" in his hands.

Then came 1984.

A microbial battery that can be used in outer space has been born across the sea, and its fuel is live bacteria and astronaut urine.

Therefore, microbial batteries have always been regarded as a promising future energy source, such as powering cars and so on.

But as of 2022.

Microbial batteries are still a theoretical technology, and even the highest power in the laboratory is only 0.66 mW/cm2.

Because it is too difficult.

For example, microbial fuel cells, like ordinary batteries, consist of a biological anode and a chemical cathode.

Due to the relatively large problems in these two parts, the power density and current density of the entire battery are significantly different from those of more mature fuel cell systems.

Without engineering bacteria.

A standard mfc double chamber battery - potassium ferricyanide cathode, carbon cloth electrode, 130ml double chamber, the potential energy generated is 500mv are very excellent results.

And an ordinary Nanfu No. 7 battery is.

1.5v.

Therefore, it is very difficult to industrialize such a low voltage, and at most it is used for sewage treatment.

However, in terms of sewage treatment, the process of anaerobic fermentation for methane production is quite mature, and its efficiency is much higher than that of microbial fuel cells.

So be honest.

If you want to break through the microbial battery to the level that can be used as a conventional power source, the difficulty may not be much less than that of MR technology.

But on the other hand.

If the vision is not so high, just like the halo shows, this technology is used to produce a small portable battery to charge small devices such as mobile phones, notebooks, shavers, and vibrators.

Then its difficulty will undoubtedly be much smaller.

Although the selection of power-generating strains, the preparation of storage chambers, or the efficiency of capturing electrons are all problems to be solved.

But these are not without trace.

For example, power generation bacteria.

At present, most of the bacteria used in this area are L. Oneida or Hafnishwanella. In theory, it is only necessary to slowly screen according to the conditional experiments.

Anyway, it was Qiu Sheng who did it and not him, so it doesn't matter if you are tired, cough cough

Coupled with the cooperation of some key nodes provided by the halo reward, Xu Yun is confident that this technology will complete a breakthrough in a short time.

Microbial power generation happens to be in line with the research direction of Huadun Biotech. After the breakthrough, it can even go online seamlessly without a cooling-off period.

In a sense.

This metal plate should be the most qualified equipment for mass production that Xu Yun has obtained so far.

It seems that Halo really thinks he is poor

Then Xu Yun put away the metal plate, his face gradually became serious.

Now in front of him, there are only three balls of light left.

No.

should be.

Two balls of light.

Because among the three light spheres, there must be that thing.

at the same time.

A premonition popped up in Xu Yun's heart without warning:

Except for the light sphere that can determine the reward, the remaining two light spheres

I am afraid that none of the rewards that exist are technical rewards.

I saw him silent for a moment.

He poked his finger towards the light ball on the far right.

boo~~

With the sound of one more tilde than before, the light sphere sounded.

A heavy English book suddenly appeared in front of Xu Yun.

This book is about five centimeters thick, one foot long and half a foot wide. The title of the book is

《classical physics》

The moment Xu Yun saw this book, he understood its origin.

After all, he had come into contact with it quite a bit in the past year.

Then Xu Yun sighed softly and took it into his hand.

【"Classical Physics"】

[The book that Avelyn Escu never left her body once made Sylph feel the power of knowledge. Don’t look at it as a souvenir made up by some stupid author due to a calculation error. In some situations, maybe will be of great use]

[Remarks: You can add a collision angle or an iron chain to persuade talents is the kingly way]

really.

This is the "Classical Physics" that Aveline has been holding in her arms since they met.

Xu Yun casually flipped through the pages of the book a few more times.

In addition to the printed text, there are many beautiful essays by Avelyn in the book, and the handwriting looks very comfortable.

Although compared with many previous rewards, this book has almost no value at all.

But to Xu Yun, this is an extremely precious treasure.

After more than ten minutes.

Xu Yun put the book away, and stretched his finger to

A ball of light on the left.

boo~

The ball of light shattered.