Before the experimental competition the next day, Wu Bin took a special look at the big Western brothers who invited them to the party, and found that they were all full of energy, without the slightest sense of hangover, which made him sincerely curious about what kind of magical place Western High School is.

The students were divided into two groups during the experiment, and Wu Bin was in the morning group, so he entered the laboratory early to prepare.

There are two experimental questions, the first of which is entitled "Diffraction caused by helical structure"

The famous X-ray diffraction image taken by Rosalind Franklin in the laboratory was once known as "Photo 51"

It later became the basis for Watson and Crick's discovery of the DNA double helix in 1952.

In this experiment, in order to help the test takers understand, the diffraction pattern produced by visible light irradiating the helical structure was specially changed.

In addition to the exam questions, there are also laser sources, DC stabilized power supplies, left and right mirrors, digital vernier calipers, 1.5m tape measures, laser protective glasses and other experimental devices.

'Do you determine the geometric parameters of a coil spring......'

After reading the requirements of Experiment A, Wu Bin began to inspect a pair of guide rails, lasers and mirrors fixed on the wooden platform.

'Well, the laser wavelength of the laser source is λ = 635nm, and the laser is connected to the bearing and fixed on a metal bracket that can be adjusted in the x-y-z direction......

After testing all the experimental setups, Wu Bin began to examine the spiral springs that were used as samples.

'The radius R, the period P, and the uniform thickness of the line is a₁. ’

He then glanced vertically and made sure that all the lines were the same thickness.

'The distance between the two groups is d₁, and the angle between the two groups is 2A₁'

Nodding thoughtfully, Wu Bin fixed the spring on the sample holder.

And then there's a smooth operation.

Adjust the laser beam focus, beam direction, press the switch on the power supply to change the laser intensity to high......

[a₁ is determined by the ratio of (xn-x-n) to n, and the slope of the straight line of figure A1 is kA1 = 23.55mm, a₁ = 2λD of kA1 = 2x0.000635x2770 = 0.151mm ......]

After recording the distances measured by the digital vernier calipers, Wu Bin began to make a map.

……

And Wu Bin didn't know that when he was in this business, several professors who were in charge of wandering around the invigilation were almost stupid.

'Doesn't this Chinese student need to think!?' ’

'Is this a leak!? No, I don't dare to do it so blatantly so quickly. ’

Wait...... Isn't this kid the one who ate dim sum in the second half of yesterday's theory exam! What kind of little monster did Huaguo send this year? ’

……

When several professors were so surprised that they all focused on Wu Bin, Wu Bin had already completed the requirements of experiment A and began to do experiment B to determine the set parameters of the pattern similar to the double helix.

‘HOLY……’

After feeling a pain in the braincase, several professors stopped looking at Wu Bin and went to patrol with other candidates.

After all, Wu Bin's speed, either he learned the topic in advance, and this is not their responsibility, or he has completely gone through the experiment in his head, and the rest is to complete it, which is really nothing to look at.

However, the fact is indeed as expected by several professors, experimental questions have always been Wu Bin's forte, and he did not relax on experimental questions because he was good at them, but he spent absolutely most of his time in the laboratory during the days of the training camp, why?

Because it's fun!

For Wu Bin, the fun of a successful experiment is even more than solving a difficult problem and being able to cool it for a while, which makes him want to stop.

After completing the first experimental question smoothly, Wu Bin looked at the second one.

[Diffraction caused by surface tension waves of water]

Buch et al. first proposed the use of liquid surface waves to diffraction of light at the line of sight, and established an optical measurement method for surface tension......

After reading the huge long question, Wu Bin couldn't help but sigh in his heart.

Professor Song's translation skills are really solid. ’

In competitions such as IMO or IPHO, the translation skills of the team leader can be said to play a very key role.

In previous competitions, there are definitely not a few candidates who overturn because the team leader's translation is not in place, and even students from some countries choose the English version of the topic with tears in their eyes after reading the Chinese translated by their team leader, and they don't know who to say 'MMP' in their hearts.

After reading the question, Wu Bin operated the tablet computer with the sine wave generator program installed, then unplugged the black laser wire and inserted the white laser wire into the DC power jack.

Because laser 2 is marked on the test question, that is, the white laser has been adjusted to a special angle of incidence, Wu Bin will no longer touch it.

Then, after another skillful operation, Wu Bin completed the adjustment of the experimental device and began to measure the angle θ between the laser beam and sleep

“ho come……”

Seeing that Wu Bin has started to use the second set of experimental devices, the mentality of an American big brother next to him is about to collapse, and he is still recording the second question of the first experimental question! Is the gap really that big!?

Wiping the fine sweat from his head, the big American brother drew a cross on his chest, continued his experiment, and vowed to never look at the next door again.

【0.069.,θ=4.0°】After filling in the slope of the straight line in the experimental data, Wu Bin began to do the last experiment to determine the surface tension σ the given water sample

'Tsk...... The experimental questions of the international competition are really interesting, and it is a pity that they have to be finished so quickly. ’

Wu Bin was calculating the relation, but he felt pity in his heart, and then went to make a graph for the variables.

"Hoo ......"

An hour later, Wu Bin breathed a sigh of relief, picked up the cake provided by the organizer and took a bite, and savored the sweetness in his mouth and the refreshing feeling of completing the experimental questions.

"Cool ......"

Hearing Wu Bin's voice, the big American brother next door couldn't help but glance back at him after all, and then silently recited a word that began with F.

Although he couldn't understand what Wu Bin said, Wu Bin's expression told him that he was in a very good mood now.

'Are all Chinese so perverted......

After drawing a cross on his chest again, the big brother in the United States continued to record his data.

……

When the invigilator announced the end of the experiment, Wu Bin found that there were still many candidates whose experiments had not been completed, which reminded him of what Senior Brother Wang Gaojie said to him yesterday.

"Do you think that every country is like Huaguo, there are preliminaries, semi-finals, and finals, and finally the top 5 players from the national team training camp will be selected to participate?"

"Not really! Many countries have five representatives in two rounds, but this is also related to the population base. ”

Although in the 21st century, many things no longer depend on the strength of the number of people, but the population base is still a huge national advantage, take China as an example, when it abolishes the shackles of food stamps, it is equivalent to announcing to the world.

"Lao Tzu has raised 1.1 billion people, and the ones in front are waiting for me to catch up!"

If you can't choose a genius out of 10 people, then choose from 100 people, and if you can't choose a genius out of 100 people, then choose from 1000 people!

This is the biggest advantage of a populous country, and it covers almost everything.

As soon as he walked out of the laboratory, Wu Bin felt a tap on the shoulder, turned his head, and found that it was the big American brother who was doing an experiment next to him just now.

“incredible”

The big brother in the United States gave Wu Bin a thumbs up and turned to leave.

“thsnks！”

After saying thank you, Wu Bin happily walked forward, but was hooked by Gong Chengwei again, and said with a smile: "What are you doing, let the Yankees say that you are incredible." ”

"It's faster to do the experiment."

"Cowhide, cowhide." After sighing, Gong Chengwei chatted back to the competition: "Although I didn't take the electricity test, these two experimental questions today are quite interesting." ”

Wu Bin nodded and said, "Well, you think so too, when I finished it, I didn't feel like it was enjoyable." ”

"Don't don't, I'm not as perverted as you, I'm just saying it's a little interesting, I'm tired when I'm done."

While the two were chatting, Zhang Fu also came over and complained: "I'll make a ...... Maozi is really insidious. ”

"What do you mean?" Wu Bin asked strangely.

"the chicken...... I didn't notice that there was a hairy girl coming to participate in the competition, just now standing next to me, I tell you, really good-looking batch. ”

"Messing with your mind?" Gong Chengwei glanced at him and asked.

"Isn't it...... The data is almost wrong. Zhang Fu patted his chest as he spoke, "Fortunately, I immediately recited it three times before I stabilized my mind, otherwise this time it would have been really folded in the hands of this Mao Mei." ”

"Hahahaha."

Wu Bin and Gong Chengwei laughed after hearing this.

Because there were only three of them in the morning session

In the evening, after all the experimental questions were completed, Wu Bin found that the performance of the original group of Western big brothers was quite restrained two days ago, according to their words.

"I was a little nervous before the exam."

As soon as the exam was over, it was really high, and a Maozi brother came over with two cups and hooked Wu Bin's neck from behind and said, "Vo~~~~~dka"

Wu Bin just wanted to refuse, but a group of candidates suddenly started to coax in order to come over, "OH! ”“OH！” “OH！”

Seeing that Wang Gaojie was about to come over to help, Wu Bin waved his hand at him, and took the vodka in the hands of the Maozi brothers and said in English, "I did it, you are free." ”

Joke! Wu Bin is also a person who has drunk all night with his father, okay, just vodka, him!

After drinking half a glass of vodka in one gulp, Wu Bin took a big sip of wine.

caused a burst of coaxing among the people around.

Brother Maozi was also very happy to see Wu Bin giving face like this, so he decisively drank up another glass of vodka in his hand and gave Wu Bin a thumbs up.

To put it bluntly, he mainly wanted to make friends, not to persuade drinking, so after drinking, he began to report to his family, saying that his name was Oleg, and he was almost not amused by Wu Bin.

A group of people went crazy, played all night, Wu Bin also drank a lot, and went to find a few other teammates with a wine burp, only to find that Zhang Fu had already drunk high, and was standing on the grass "dance floor" and twisting his body with the big brothers in the West.

Wu Bin didn't see the other people, and he didn't know where he went.

It wasn't until the next morning that I learned that they had gone to play poker with a few Nordic brothers, and they had won a lot of their coins, of course, after playing well, Gong Chengwei and they also gave the Nordic brothers a few coins and five cents.

After all, they didn't mean to gamble, they just played.

During the exam, the organizers arranged a visit, not to mention after the exam, Wu Bin and they were led to visit many famous attractions in the Netherlands, the most spectacular of which is a tulip garden, which is really all over the mountains, so that Wu Bin recited two lines of poetry on the spot.

"Lanling wine tulips, jade bowl with amber light!"

The communication between the tourist squadrons was also much more frequent, and they learned a lot of interesting things about other countries while chatting with each other.

One day, at noon, when everyone was visiting a fishing port, a British boy named Abt took out a toy that was quite new to Wu Bin and them.

Fidget Spinner

Translated as fidget spinner, as the literal meaning is, a spinning top that is placed on the finger to play with.

Abt is clearly a veteran and can smoothly pass two fidget spinners between ten fingers at the same time.

Just when everyone wanted to try to play with this fidget spinner, Mao Mei, who had almost made Zhang Fu "break the halberd and sink into the sand", came over.

Her name is Lilia, she is only a freshman in high school this year, and she is also a girl with a very talented physical talent, but her personality is relatively ...... How to say, unrestrained?

Lilia looked at the fidget spinner in Abt's hand and asked, "Hat's the f^ucking point of playing this?"

To put it bluntly, it translates as, "What does this mean?" ”

However, Abt replied with a very gentlemanly reply: "I don't kno! But I guess it's kinda like Sisyphus”

'What is Sisyphus?' Although Wu Bin understood what Abt said about this image, he had not heard of this Sisyphus.

At this moment, he suddenly missed Li Yan a little, because he felt that if he asked him, he would definitely know.

There was no human encyclopedia, so Wu Bin had to open his mobile phone and search for it, and found that it was a character from Greek mythology named Sisyphus.

In Greek mythology, he was the founder and king of Corinth, and his strongest achievement was the kidnapping of the god of death at one point, so that there would be no more death in the world.

Then this act of course offended the gods, and in order to punish him, the gods asked him to push a boulder up to the top of the mountain, but the boulder was so heavy that every time he did not reach the top of the mountain, he rolled down the mountain again, and all his work was lost, so he repeated it and did it endlessly.

The gods thought that there could be no harsher punishment than to perform such ineffectual and hopeless labor.

Here is a figure from Greek mythology named Sisyphus.

In Greek mythology, he was the founder and king of Corinth, and his strongest achievement was the kidnapping of the god of death at one point, so that there would be no more death in the world. , he was the founder and king of Corinth, and his strongest record was the kidnapping of the Grim Reaper at one point, so that there would be no more death in the world.