Color-Changing card?
Three-dimensional grating painting?
The students below first thought of the kind of card toy that they had played when they were young and could see different pictures from different angles.
But soon this conjecture was overturned. The fonts on the iron ruler were not flat at all. Instead, they were chiseled into the iron ruler, and the traces of depression could be clearly seen.
"Friendship … Friendship Forever," Professor Kobayashi Well's eyes were like firewood burning helplessly in a raging fire.
There was no abnormality in the front view, and the fonts could be seen from another angle.
What did this mean?
This indicated that the four words on the iron ruler were inscribed with an unimaginable level of verticality.
Its principle was very simple to explain. If a piece of paper as thin as a cicada's wing was horizontal and perpendicular to the eye, then it would easily disappear.
Similarly, the bottom of the fonts on the iron ruler would be the same roughness as the surface. Such an effect could be achieved by processing a straight line with terrifying accuracy from the side.
It was simple to explain, but it was very difficult to do.
In the live broadcast room, after the popular science of mechanical experts who knew the industry, the students unanimously spammed in the barrage...
"Haha ~ Just now, the Japanese Institute of Technology insisted that there was nothing, but they were slapped in the face from another angle."
"It's so cool. Just this visual effect alone is enough to beat that nut. Aren't their threads invisible, but the threads are as thin as silk. And our four characters are as big as mahjong, so the difficulty is naturally much higher. "
"Is this the only way, student?" Kobayashi Well's loose sentence made the barrage and the students below suddenly quiet.
"A great idea, admirable processing precision."
"But in our opinion, the industrial level represented by this gift is still a little short of the top manufacturing technology."
It was not arrogance, but the technology demonstrated by this iron ruler could also be made by Professor Kobayashi Well with the help of a well-known high-precision instrument factory in China.
Of course, there was difficulty, and it would take a lot of time, but it was not difficult for him.
"It's over, look at this guy's confident appearance, it seems that they can also make this magical effect of engraving."
"After all, their precision processing technology is the world's first, so it's understandable that it can't be difficult for them."
"Alas ~ Although it's not difficult, it's not a loss."
The discussion in the live broadcast room resumed.
"Professor Kobayashi Well, I think you've misunderstood me." Ye Qing waved the iron ruler in his hand and turned the other side around.
"Back then, you gave us a nut and asked us to process a screw."
"Then we naturally have to return the favor and present a complete commemorative gift that requires the cooperation of our two schools."
After pausing for a moment, Ye Qing was very satisfied with the deflated expressions of those guys.
After showing the iron ruler from different angles and confirming that there were no Chinese characters on the reverse side of the iron ruler, Ye Qing's gaze was calm and unruffled. "Our long-lasting friendship is a blessing from us to your school."
"I would like to ask your esteemed school to carve another sentence in your language on the reverse side of this iron ruler to verify our friendship."
"Carve a sentence?" Kobayashi Well didn't understand. "What sentence?"
"The answer is already written on the iron ruler. You just need to interpret it and carve it in your language."
After that, Ye Qing handed the iron ruler to Kobayashi Well.
The camera clearly captured the suspicion on Kobayashi Well's face, and the moment he took the iron ruler, his right hand obviously sank down, showing why he had such a heavy expression.
The students of Japan University of Science and Technology crowded around.
The highlight came. It turned out that this iron ruler not only has amazing precision processing technology, but also hides a puzzle for them to crack.
Fortunately, Japan University of Technology was already prepared. At noon, Professor Cai informed them that they would be given an iron ruler as a gift. They kept guessing what kind of trick this iron ruler had.
Therefore, many of the instruments that originally needed to be packed into shockproof metal boxes and packed away were also brought to the multimedia center by them.
The iron ruler was only more than 30 centimeters long, and there was no scale on it. Kobayashi Well believed that even if there was a mystery, they could easily crack it.
This confidence came from the equipment they carried.
A Nikon S1500 industrial electron digital microscope was moved to the table by the students of Japan University of Science and Technology.
Nikon was one of the world's top optical lens factories. The microscope they took out was the one with the highest effective magnification among the current optical microscopes.
There was no place to hide any tricks under this top-notch optical microscope.
However, when the students of Japan University of Technology set up the microscope and turned their eyes to the LCD display on the microscope.
Their reaction was more exaggerated than if a grenade had been detonated.
With a whoosh, they took a step back.
"This is impossible!" Kobayashi Well shouted in his native language, "Why is its surface flat?"
The other students also had the same expression of seeing a ghost.
Because when they just adjusted the magnification to the best observation factor of 1,200 times, they saw that the surface of the iron ruler was still flat. Although it was not as flat as a mirror, it was similar to observing the surface of ordinary steel directly with the naked eye.
If you want to study the metal, the first step is to study its characteristics.
Magnified 1,200 times, you can directly see the microstructure of the metal surface. For example, on the metal, martensite and austenite like snowflakes.
Similarly, they observed the iron ruler with the naked eye and found no tricks. Naturally, they thought it was hidden under a microscopic mechanism invisible to the naked eye.
As a result, what did they see?
If the previous engraving was said to be a difficult level processing technology for them. The smoothness of the iron ruler was equivalent to a fear level processing technology.
It took a lot of effort to suppress the fear in their hearts and continue to study the iron ruler.
Time passed little by little, and on the side of Japan University of Technology, the previous pride had already flown to Siberia, replaced by solemnity and madness.
Because they couldn't find anything, no matter how they observed it. The surface of this iron ruler was all flat, and they couldn't even find a spot that wasn't black, let alone a trick puzzle.
"Haha ~ Look at their tangled look."
"They're stumped. Let them look down on us again?"
"I think … they need Detective Conan to save the day!"
Half an hour passed, and Kobayashi Well raised his head with difficulty, his face full of sweat: "After … after our unanimous study, there seems to be no mystery on this iron ruler."
"Yes." Ye Qing answered unhurriedly, making the students of the Japanese Institute of Technology almost want to die.
"Have you measured the length of this iron ruler?"
"Yes … Yes, it has been measured." Kobayashi Well took out a handheld rangefinder: "This is a rangefinder produced by our Nikon company. Not only the length, but also the width and height have been measured by us."
"Its length is 0.32569 meters."
"The energy of the ruler is long, and the answer is in its length." Ye Qing stood up and shook his head: "The accuracy of the rangefinder is not enough. You need to change to a more advanced instrument to re-measure its length."
"But we have been accurate to the millimeter, and its length is too long to be measured by a micrometer. If you want to be more accurate, you have to use a laser interferometer. "
"How accurate can your laser interferometer be?"
"Nano-level." Kobayashi Well's voice had a hint of roar: "We can be accurate to 2 nanometers, but what's the point of measuring this iron ruler?"
"The accuracy of two billionths of a meter, there is no machine tool at all at this stage. Even our industrial mother machine can only determine the accuracy of metal materials at 50 nanometers. "
Meters? "Ye Qing said a number with a serious look.
"What do you mean? This length was measured by us. "
"There are 734 behind." Ye Qing looked at him and reported a number.
Kobayashi Well said with some disbelief: "You have made the accuracy to 0.1 silk?"
"Since your laser interferometer can't reach the accuracy standard, I'll tell you the exact answer."
Ye Qing said calmly: "We fixed the accuracy at half of a nanometer, that is, the accuracy of five billionths of a meter."
"The energy of the ruler is long."
"If you use a more advanced interferometer in a vacuum box to measure the length of this iron ruler."
"You will get this set of numbers: 0.32569734830, a very simple set of decimal numbers. As long as you convert this set of numbers into your characters in decimal, you will be able to get the words you want to engrave on it."
Silence.
Father Time dropped a time bomb in the multimedia center, making their expressions freeze instantly.
Convert the length of the ruler into their characters?
They could get …
You've already exceeded your reading limit for today. If you want to read more, please log in.
Login
Select text and click 'Report' to let us know about any bad translation.
