"Buzz buzz!"

The wind stopped, and the transparent hatch scrept open, spitting out a delicate, colorful, square plastic sheet.

The board is not big, and it is just one lap larger than Atletico Madrid's left palm in your hand.

Looking down, he put the sign on the tray and walked to the next machine.

The speed of 3D printing is a bit slow, but fortunately, there is no shortage of machines here, which can improve efficiency by "parallel printing".

Strictly speaking, these machines should be regarded as all-in-one printers, coloring and engraving machines, with additional automatic painting and computer engraving units, which effectively improve the "stubborn disease" of poor 3D printing accuracy and monotonous colors. It's a pity that the new machine is still a little popular, and even with Atletico Madrid's angel investment, the startup that did it still collapsed. The company was liquidated and cancelled, and investors such as Atletico Madrid were each assigned a bunch of unsalable inventory, and he sold most of them at a three-fold discount to companies with 3D printing needs such as digital biology, bee games, bee education, and Guyun clothing, and the remaining five simply put them at home, and they could also play some small things such as figures and plastic toys if they had nothing to do.

"Parallel printing" was still very powerful, and after a short time he collected the semi-finished products he needed and sat down in front of the assembly table with a tray full of colored boards.

Simply printing a colored plastic block is inevitably monotonous, and he also needs to add some gadgets to it, and the current size is not enough, he plans to put two pieces together. Under the fine scheduling of E7U, he danced with his hands like the wind to bring out pieces of afterimages, and successively loaded the tiny accessories prepared next to him into the reserved position at the bottom. The drip test confirmed that it was normal, and Atletico nodded in satisfaction and glued the seams.

When the adhesive had cured, he dipped a small brush in a special paint, smeared snow on the top of the mountain, and outlined the bottom of the lake in the lower part to hide the tiny water holes there.

In about a quarter of an hour, Atletico finally completed all the manufacturing processes. The wiped clean finished product is packed into a transparent box, and then passed in the plastic sealing machine, and the transparent and strong BOPP cigarette wrap is wrapped on the outside, which looks quite formal with a new reflection.

When it was all done, he put all 30 plastic boxes in a bag, left the studio to change in the cloakroom, and then went to meet his wife's living room.

Seeing him enter the door, Zhang Xu Yao Huo Ran on the sofa stood up, walked a few steps quickly to Atletico Madrid, but stared at the bag in the other party's hand. Hearing that Brother Jing was playing with 3D printing, she wanted to rush into the studio to see Strange, but unfortunately she was stopped by Sister Jiayi, so she could only sit and wait until now. Of course, while waiting, she must find something to do, such as grabbing people's heads to eat chicken or something, but these don't need to be talked about in detail.

took the box handed by Ma Jing and looked at it, but Zhang Xuyao was a little disappointed, and looked up at someone, "Brother Jing, you have been making this thing for a few days?"

Inside the box is a 3D topographic map with mountains, canyons, oases, and deserts that look quite exquisite. But that's all, except that the three-dimensional sense is stronger, it doesn't look much better than ordinary topographic maps.

None of this is really true, the key question is the purpose of these boxes. They are not someone's own amusement, but the prizes he has prepared for tonight's Mid-Autumn Festival. As an employee of Bee Education, Teacher Xiao Zhang also participated in the party held by the Bee Headquarters, and theoretically had the qualifications to draw these things, which made her a little unbearable.

Thinking of this, she suddenly patted her head, "It seems that Sister Jiayi said that you are addicted to games and can't extricate yourself, it should be true." Alas!"

"This thing isn't for you, why are you sighing?" Atletico asked with a smile, reaching out to retrieve the box.

Teacher Zhang was a little unhappy when he heard this, "This is not necessarily! What if I get the lottery? Can you discuss it and exchange it for another prize?"

In fact, the prizes for the Mid-Autumn Festival Gala have long been determined, and the company has prepared a large amount of cash red envelopes, customized moon cakes and 99 kinds of prizes of nearly 2,000 pieces of varying value for all employees to draw online, with a total amount of more than 10 million yuan.

Everyone has a share of the moon cakes, and they have been sent to the house at this time, and the red envelopes need to be grabbed on the spot, and the remaining prizes are a little strange. In order to make up the number of 99 kinds, not only did they stuff a lot of their own products into it, but also got some strange rewards such as unlimited leave slips, changing of the guard experience coupons, family lunch coupons, and even 100 100 yuan machine-selected lottery tickets predicted by AI, which can be described as full of all kinds of brains.

"No," Atletico decisively refused, "whatever you draw, I really don't like it, you can discount it or resell it privately, but you can't sell salted fish second-hand." ”

Hearing this, Zhang Xu Yao looked at the bag in someone's hand with resentment, sighed and returned the box in his hand to the other party.

"Hey!" Tang Jiayi came to the two of them and looked up at her husband, "How about it?"

"That's someone's blind," Atletico beckoned to the two, "Let's go!"

The three of them turned around and walked out, but someone was not convinced, "Isn't it just a 3D topographic map, you can buy it for dozens of dollars on the Internet, the range is larger than this, and there are detailed labels, which is like you, it is completely a bare board, not a pothole and uneven board, not a word!"

Atletico didn't speak and just walked out by himself, but Tang Jiayi reached out and pulled her, "Have you returned all your geographical knowledge to the teacher? Isn't it a glitch of a few millimeters to shrink a mountain a million times above sea level?"

Even if the two pieces are put together, the finished map is only a quarter the size of a newspaper, and it represents a sprawling mountain range that stretches for 800 kilometers and its surroundings. Because the scale is so large, the mountains and rivers with a difference of hundreds and thousands of meters actually become tiny undulations on the map, and the distance between them is also proportionally reduced, which does look a bit like a rough frustration.

Although Mr. Zhang teaches music, his basic logical thinking and arithmetic skills have not been lost, so he nodded speechlessly, and then asked rhetorically: "Then why aren't other topographic maps like this?"

"Isn't that what it is?"

"The mountains above are all in a row, and the Qinghai-Tibet Plateau is also very conspicuous, and there are rivers and towns on it......

As she spoke, Zhang Xuyao couldn't go on.

This is still the case in the mountains, and rivers, lakes, and towns that are not wide enough are naturally invisible. On the one hand, the traditional topographic map is to highlight the terrain, on the other hand, it is also limited by the processing accuracy, and it is impossible to present the mountains in large and fine areas, so it has to be replaced by a continuous uplift in the large, which is also convenient for printing place names.

Seeing that she stopped talking, Tang Jiayi said again, "By the way, there are actually words on it, but you didn't see it." ”

"Huh, where is the word?"

Reaching out to her husband and asking for a new piece, Tang Jiayi turned to show her, "Yao, here!"

Zhang Xuyao looked down and saw a few sparse small characters on the side of the plastic map, hidden in the texture of the earth's crust, which was really difficult to find if he didn't specifically look for it.

Finding these words one by one, she casually read them out: "What do you mean by crossing, passing, group, mountain, walking, going, han, and sea?"

"What else could there be? The name of this 3D map. ”

"It's quite a battle, but it's a bit interesting," looked at the map in his hand again, Zhang Xu Yao pouted, "I can see the mountains, but what about the Hanhai? Not to mention the sea, I can't even see lakes and rivers!"

"Hanhai is here," Tang Jiayi nodded to the brown and yellow desert on the left side of the map, "pour a little water here, and there will be no sea." ”

Unlike the usual topographic maps, which rise from the plateau, Atletico's plastic-printed map is significantly more rigorously proportioned, dripping water in the mountains and eventually collecting in the low-lying areas, then passing through a special paint into the "underground", and then flowing down from the mountains to form a loop.

"Hmm, can you still play like this?" Zhang Xuyao's eyes lit up, "Isn't this a perpetual motion machine?"

"No, there is a battery in it, but the power consumption is very small. ”

"By the way, there are deserts all around, this seems to be Qilian Mountain, right? Looking at the mountains and mountains, it can indeed be called mountains. ”

"Uh-huh," Tang Jiayi continued to nod, and by the way, helped her open the eggshell door of the shuttle bus.

Nodding his head and thanking him and getting into the car, Zhang Xuyao continued: "The mountain is Qilian Mountain, and the desert to the west is the Taklamakan Desert, and then your Hanhai is actually Lop Nur?"

As the site of the nuclear test in the past, as well as the scene of many modern strange stories such as "nuclear bomb to eliminate 100,000 Soviet troops", "Pisces jade pendant replicant", "nuclear bomb to eliminate mysterious virus", that former saltwater lake undoubtedly has an extremely unique position in the hearts of the Chinese people.

Because of the memories, more historical knowledge was online, and Mr. Zhang said angrily: "Besides, Hanhai is obviously Lake Baikal, Huo Quai's 'sealing the wolf and living in Xu Mountain, Zen in Guyan, and landing on Hanhai', I still know this." ”

"Then you have to ask him," Tang Jiayi also knew this, so she happily threw the question to her husband.

"In the Han Dynasty, Hanhai did refer specifically to Lake Baikal, but later the term became a general reference, and the desert could be used, and the great lake could barely be used. ”

"Whew! That's too blunt. ”

"Then what should I do?" Atletico turned his head and spread his hands, "Wouldn't it be even more strange to write 'over the Tianshan Mountains and towards Shiozawa'?"

The name Qilian Mountain comes from the Xiongnu language, which means Tianshan. In the Han and Tang dynasties, the Qilian Mountains were often mixed with the White Mountains on the Green Mountains (Pamir Plateau) further west, Li Bai's "bright moon out of the Tianshan Mountains" refers to the Qilian Mountains, Cen Shen "went to the Tianshan Mountains full of snow", and Xue Rengui's "Three Arrows Set the Tianshan Mountains" said that the White Mountains (that is, the modern Tianshan mountain system).

As for Shiozawa, it is one of the many ancient names of Lop Nur, similar to Size, Puchanghai, Gaolanhai, Furi Sea, Peacock Sea, etc., each with its own story.

Located at the lowest point of the Tarim Basin, this saltwater lake is the final confluence of the surrounding inland rivers. In prehistoric times, there used to be a huge lake of 20,000 square kilometers in this area, but later the area was greatly reduced due to the slope of the lake bottom due to the orogeny, but there is still a huge water surface of "vast 300 miles". Because they only saw the water coming and not flowing away, the ancients actually thought that this was indeed the real source of the Yellow River.

In the first century B.C., the Silk Road was successfully opened, and the Loulan Kingdom arose on the lakeside, and the merchants and travelers multiplied and the army attacked and killed, which eventually destroyed the local fragile desert oasis ecology. To add insult to injury, the northern hemisphere began to enter a cold period from the first century AD, which reached its peak in the first half of the fourth century, when the low temperature led to a decrease in alpine snowmelt and a significant reduction in the water surface of Yanze. In the Yuan Dynasty, the northern hemisphere briefly entered a warm period, and the water surface here has been greatly restored, and it is called by the Mongols as the "lake where water flows in" - Lop Nur, which eventually evolved into today's "Lop Nur".

"Okay, okay," Zhang Xuyao skipped the question, "but Lop Nur doesn't seem to be big, and it's all done now." ”

"There has been water in Lop Nur for a long time. ”

"Didn't you say it dried up completely in the '70s?"

Raised his wrist and pointed to the phone in the other party's hand, "Lop Nur is so famous, you will know if you search the satellite map." ”

Unable to hide his curiosity, Zhang Xuyao opened the bee earth and searched for the "Lop Nur Satellite Map", and soon got the results.

The first thing that catches your eye is the silhouette of the famous "Ear of the Earth". Zooming in and looking closely, you can see a rectangular sapphire suddenly appear above the ear, and further magnification, it turns out to be some regular pools similar to swimming pools, and the water color is blue and blue quite beautiful.

"What is this?"

"Salt pond for drying brine. The potash company extracts brine from the ground and pours it into a pond to dry the salt. ”

"It's really big," Zhang Xuyao looked at Lop Nur for the first time, "If you pour water into your ears, it will definitely look good." ”

"In reality, it shouldn't be possible, even if the state really plans to build a water diversion project, it will have to wait for this potash mine to be mined. ”

Zhang Xuyao reluctantly accepted Atletico's statement, "It seems to be so, but why do you have to use such a sentence?

"This is only a part of the east, and it has to be put together with Central Asia and the Mediterranean to be complete," Atletico explained, "and besides, don't you think this sentence is very historical?"

"Is there one?" Mr. Zhang blinked, indicating that he didn't understand.

Atletico smiled, but turned away without explanation.

After frowning and thinking for a while, Zhang Xuyao suddenly remembered something and asked in a loud voice: "Is it pinching his stalk of 'crossing the Great Wall and going to the world'?"

On September 20, 1987, the first international e-mail in China contained this sentence. To be precise, since computer systems at the time generally did not support Chinese, and the recipient of this email was a co-scholar at the Karlsruhe Institute of Technology (KIT) in Germany, it was actually written in English and German.

Because of the mention of "Great all", this phrase appeared in a new interpretation on the Internet in later generations, and was hailed as "God's prophecy".

As a netizen who occasionally climbs the wall, Zhang Xuyao naturally knows the meaning because of other people's popular science.

Thinking of someone's approach, she showed disdain, turned her head and spewed a nasal voice representing disdain at Atletico Madrid, "What, ordinary users can scold the wall, you people who engage in the Internet don't seem to be qualified, right? Or there is no such wall, you are properly hung and beaten by Amazon, Google, Microsoft, and Facebook!

(End of chapter)