When I leave you this time, I don't want to see you anymore

At this time, you have fallen asleep quietly

Leave everything we have left unfinished to the world

I still tread this world considerably

It's just your bottom dream - "Farewell"

What kind of story will happen to Xu Qing after that, I no longer know. Because that was the last news I heard about her, maybe she would meet someone she liked, but it would be a lie to say that she didn't want to see her anymore.

The ordinary life ushered in the first electromechanical design competition, and our dormitory naturally signed up enthusiastically, and it was not a disappointment to live up to the campus youth on the road of chasing dreams.

But when it comes to science and technology competitions, I am reminded of a strange science competition - the Pineapple Science Award.

The Pineapple Science Award is a scientific award supported by the Zhejiang Association for Science and Technology, jointly created by the Zhejiang Science and Technology Museum and the science and technology media Guoke.com, and was established on April 7, 2012. With the slogan "Salute to Curiosity", the Pineapple Science Prize rewards those who have imaginative and interesting scientific research results, arousing people's curiosity and enthusiasm for science, and is known as China's version of the "Funny Nobel Prize".

That year's math prize research topic was: How many times can a lollipop be licked?

The research team placed the lollipop in a pipe washed by the water and filmed the lollipop dissolving through time-lapse photography. No matter what shape the lollipop is or what the speed of the water is, it is almost always crescent-shaped when it is about to completely dissolve, and the lollipop with a diameter of about 1 cm takes about 1,000 times to lick it.

And the physics prize is "Why don't mosquitoes get killed by raindrops?" "

The researchers used a high-speed camera to film the process of the mosquito being smashed with a high-speed camera to resemble raindrops. Mosquitoes have strong exoskeletons that fall with raindrops during flight, so they are less impacted and cannot be killed by droplets that are 50 times heavier.

I wasn't surprised by the strange idea, after all, I used to wonder if I should drink water or go to the toilet first when I was thirsty and urgent. "。

I came to a conclusion from this wonderful competition, that is, to pass the test with hardware, it is useless to have ideas without equipment, and it is difficult for a clever woman to cook without rice.

Our project is an unmanned camera, that is, inspiration from aerial photography, although it is not a novel idea, but it is still very difficult.

All flying objects must first consider the problem of controlling their own weight, and all the search for alternative materials to metal is a top priority.

In the end, we decided to go with composites. Compared with traditional metal materials, composite materials have the characteristics of high specific strength and specific stiffness, small coefficient of thermal expansion, strong fatigue resistance and vibration resistance, and it can reduce weight by 25% ~ 30% when applied to UAV structure.

The direct application of composite materials to the structure of UAVs plays an important role in reducing the weight of the empty fuselage, increasing the payload and improving the safety. According to statistics, the amount of composite materials used in various advanced UAVs in the world generally accounts for 60% ~ 80% of the total weight of the fuselage structure, and the total amount of composite materials can reach more than 90%. The benefits of the extensive use of composite materials on drones are manifold.

In fact, you can also see many tools using carbon fiber in life, such as some professional fishing rods and bows and arrows in archery competitions.

I have to say that this material alone costs us a lot of money, but as a science student, it is still worth it to do research and design.

Under the guidance of the teacher, we finally worked hard to install the wireless transceiver and rocker system.

In fact, most of them still use the design inspiration of their predecessors, but with the addition of a light-emitting device, the fuselage can be seen in the night sky emitting colorful light, which is actually adding a circuit board.

It took a few of us two days and two nights to assemble the circuit.

In the face of complex circuits, we who had just learned electricians really seemed helpless, so we secretly went to the senior's study room to ask for advice.

A couple of roommates who usually look like swingers were also quite serious about their work, and that was the first time I felt the strength of the team.

At night, we went to a flat field in the mountains behind the school to conduct experiments. So we failed again and again just as Edison failed to find the right tungsten filament for the light bulb, and we failed many times to choose the right engine.

As a result, the drone does not fly high, or fails halfway, or the fuselage is unstable, and other problems are reflected, and finally the model has to be pushed back down.

There are a few nights when I use CAD to draw the cantilever beam, which is not difficult to operate, but I may not be good at stereoscopic imagination!

It took us three weeks to design, and when we watched our results fly in the air, we were as excited and proud as we were when we saw Chang'e running to the moon as a child.

We won the first place in that competition, and the design was displayed in the school's science and technology museum.

The celebration meeting after the event must be indispensable, to be honest, during the period of separation from Xu Qing, I once fell into a hollow period where everything I did was a little listless.

This success made me feel the reward of my hard work, and I finally let go of the long-suppressed thoughts in my heart.

I never wanted to stay in the drinking party for long, so I took the opportunity to escape and play.

In fact, it is good for people to have a hobby, and when they are sad or decadent, they can relax and relax. It doesn't feel like you have nothing to do when you're idle.

I think that so many people who like to gamble day and night in addition to wanting to make money in the simplest way, another big reason is that they don't have any hobbies.

In fact, most of our parents' generation are like this, and the most fundamental reason is that they haven't read much, so naturally they don't have so many noble hobbies.

Therefore, it is common for parents to force their children to do homework at home, but they keep playing with their mobile phones. Think about it, so many parents have never flipped through a book or read a magazine at home, but they always think about their children becoming dragons and phoenixes. It can only be said that the ideal is very plump, and the reality is very skinny. The world is always so strange.

I sweated so hard that I had been so decadent that I hadn't breathed such fresh and pure air that day in the crimson sunset.

Finally, sweating profusely, I sat on the ground, gasping for air.

At this time, a girl stood in front of me at sunset and handed me water.

At that moment, I admit that I had never seen her so beautiful, probably because her body produced some kind of hormone after strenuous exercise.

I have the impression that she is the kind of person who is cold and does not like to talk. Busy with his own business all day, in the words of his high school teacher, "I don't hear anything outside the window, and I only read the sages." "

She wore her long braids that day, hanging around her neck and over her chest. A long dress of flowers came into my eyes, and it was the first time I looked at her so closely, and I felt a little amazing, maybe she had never put on makeup before.

I took the water and poured it down. She brushed her skirt and sat quietly beside me.

"Congratulations, number one."

She just looked at the sunset on the horizon and didn't notice that I was looking at her.

"Thanks, your water."

I don't know if I was referring to that or what I was referring to, but I was adding water.

"You know, actually looking at you like this is a rare joy I've ever had."

"Why?"

I'm as fast-mouthed as ever.

"Because, because it's just fun!"

She suddenly turned to meet my eyes and muttered the words.

"Is your happiness that simple? Watching a boy play? "

"Maybe."

Her hands restlessly wrapped around her legs. Like a hedgehog curled up.

Actually, it's because of someone, I'm not stupid in my heart, and the so-called scenery has joy and sorrow because of people, which is probably what it means.

"Is it because of that incident that you remembered me for so long?"

I brought it up anyway because I wasn't convinced.

"Of course not, you just don't know."

She got back to her feet and spun around in front of me.

"Actually, I'm like a satellite, always revolving around the planet I like, but he doesn't know it, but revolves around others."

"I ......"

"You don't have to explain, it's just that I like you, and you may say things that we don't say to me to reject me, but you can't stop me from liking you for this beautiful thing. A lot of times I don't expect anything from you to promise me anything, I just need to know that I like you. "

At that moment, I admit that I saw the shadow of Eros in her, and it may be a happy thing to like someone and be liked by someone.

"What about you, forget her, or die?"

She walked under the basket, threw a basket with all her strength, and scored. The strong smile I saw on her face was not as sad as I was.

I propped myself up with my hands, "Actually, I still say that, I don't know." "

"Do you think I can have a place in your heart?"

She put her hands behind her back and tilted her head slightly and looked at me with tender eyes.

I knew she confessed to me, and she was serious.

"My heart should be full."

I finally said no.

"Well, I finally got the answer."

I don't know why her smile pretends to be so similar, as if she got an affirmative answer.

"Then I hope you can stay happy, I'm leaving."

She lowered her head and blew the hair on her forehead to the sides, quietly looking like a silly sister.

"Well, goodbye."

I just replied lightly, in fact, my mind was blank, and I didn't know what to say, after all, I had just rejected someone.

She continued to take a short step, and after a while she lowered her hand and stopped.

"I like you."

The first time I heard a girl say this kind of thing to me, my heart was inexplicably warm, and Xu Qing didn't seem to have said this to me before.

I froze in place and didn't even beckon, until her shadow faded away and disappeared from sight.

These four words seem to be repeated all the time in this space.