In the evening, after sending Yang Qin back to the school dormitory, Xu Hongwen didn't bother to go back to the store, he also went back to the dormitory, Cheng Cheng hadn't come back yet, and the dormitory was deserted; After returning to the dormitory, Xu Hongwen, who was leaning on the bed, couldn't calm down now, looking at the light bulb hanging from the floor, it seemed to be still and like it was shaking gently, and the dim light emitted seemed to be trying to make this dormitory no longer seem lonely!

Xu Hongwen knows that he can't build a big brother for the rest of his life, his ideal is to let everyone use the mobile phone that he made, for Xu Hongwen, who still has almost nothing, this is an impossible thing, two words "poor money"!

The technical content of the communications industry is very high in this era, unlike the later generations who can produce copycat machines by investing some money and recruiting some people, that is because later generations have many large companies that provide technical support behind those copycat factories, such as Qualcomm, MediaTek, Spreadtrum and other companies behind the development of a complete set of technology, which may make the cottage factory as convenient as ordering a package in McDonald's, as long as you pay for it, there are so many technical solutions that you can choose from as you choose, although such an industry model has also created the prosperity of the mobile phone industry in later generationsBut it also makes many companies that rely on this model unable to escape the shadow of copycats.

In the early nineties, the communications industry was a virgin land, and there was almost no competition between industries, because the mobile communication market was small and expensive, and it was not a luxury that ordinary people could afford to play, but it was also a profiteering industry.

Now Xu Hongwen is taking a fancy to the current business opportunity, the profit of a single machine is almost a hundred times more than the market in later generations, it is suitable for the lack of money in his hands and it is difficult to quickly become a scale He quickly accumulates capital and technology, but even if it does not require a very large-scale investment, such an investment is also hundreds of millions of funds to play.

Money! Or money! Xu Hongwen, who has a huge sum of 100,000 yuan in his hand, can be regarded as a little rich, but this money is also invested in his thoughts, and he can't even afford a small wave.

Remembering the idea of making LEDs at noon, the investment is relatively low, and the technical requirements for LED lights are not high, Xu Hongwen has several sets of mature technical solutions in his mind, compared with a large number of patented technical barriers to make mobile phones and the collapse of domestic electronic components, LED only needs a factory that can produce diodes to make high-quality LEDs, and the rare metals that LED needs are cheaper than Chinese cabbage in China.

Now there is no technological breakthrough in LED lighting in the world, as long as Xu Hongwen comes up with the technical solution in his mind and declares a patent, it will form a patent technical barrier belonging to him, and the huge market of LED will be the only one who eats meat and others can only drink soup market.

Xu Hongwen, who was lying on the bed, knew that now his fantasy was just the moon in the water and the flower in the mirror, and only by making samples from the real room and getting an international technology patent was the first step, thinking of this, Xu Hongwen immediately sat up, he knew that there was a suitable real room in Dongda, but this real room was not managed by his teacher, and he needed to apply for an appointment to use it.

Xu Hongwen, who had an idea, couldn't sit still, and he also knew that the rare metals he needed were difficult to find, because the amount needed was very small, and he might use the methods of the real room to refine them, which also needed to ask the students of the chemistry department to help.

If you want to do it, you can act, Xu Hongwen remembered that he lived downstairs with a doctoral student in the Department of Chemistry Song Min, although he was not too familiar, he thought that he would not be rejected by others for such a small favor, and after leaving the dormitory and going down to the second floor and knocking on the dormitory door, he knew that Song Min was not in the dormitory, and now he may still be in the real room!

Xu Hongwen, who didn't meet anyone, had to go downstairs to the real yàn room of the Department of Chemistry to find it, and after going downstairs, Xu Hongwen saw that the night after the snow also became brighter, no longer the dark one before, through the dim street lamp Xu Hongwen could almost see the campus scenery as far as his eye could see, but a snow-white snow scene blocked all other colors.

The deep chill of winter makes people shiver in the north wind, so cold that Xu Hongwen didn't have the heart to look at this beautiful night snow scene, and Xu Hongwen, who copied the shortcut, finally came to the real building of the Department of Chemistry after passing through the groves, playgrounds, and teaching buildings!

After Xu Hongwen, who entered the real yàn building, asked Song Min where he was, he went straight to the real yàn room where he was, and knocked on the door outside the real yàn room, and only after hearing the people inside say "please come in" did he push the door in, and Xu Hongwen, who entered the real yàn room, saw that Song Min was doing real yàn with a few little junior brothers and sisters, and it was not too cold to hold glass test tubes and utensils on a cold day.

Song Min, who was holding the test tube to explain the essentials to his younger brothers and sisters, saw Xu Hongwen who pushed the door in, and asked with a smile: "Hongwen, is there anything to find me?" ”

The real room is full of glassware, containing many unknown chemical reagents, all colors, Xu Hongwen who entered the real yàn room smelled a strange smell, not to mention what it felt, it smelled very bad, but Xu Hongwen didn't care much, looked at Song Min and said, "I really have something to do with you!" Song Min, I see you're busy right now! ”

Song Min shook his head and put down the test tube in his hand and said, "It's okay, because this real room is quite busy during the day, I'll take a few of them to make a few basic real things at night when no one is around!" ”

After Song Min finished speaking, he explained a few words to his junior brothers and sisters, and then pulled Xu Hongwen out of the real yàn room, and when he arrived in the corridor, Song Min asked with a smile: "What's the matter, come to the real yàn room to find me this big night!" ”

"Haha, I have a real yàn that is missing a few materials now, I want you to refine a little!"

"What materials, I'll see if we have them in the room!"

"Several rare metals extracted from rare earths, indium, gallium, cerium, yttrium, these four metals, you see if you have them in the room!"

"I remember like yes, we refined it when we did rare research a few months ago, I'll find it for you!"

"I'm sorry for you!"

"Hehe, no trouble! Just treat me to dinner next time! ”

"Okay!"

Seeing Song Min return to the real yàn room, Xu Hongwen's mood was also quite happy, he didn't expect that what he thought was very difficult just now was done all at once, with these four rare metals, and then through the special process of guò, he could make LEDs that emit white light, and after waiting in the corridor for more than ten minutes, he saw Song Min come out with a tray containing more than 20 small glass bottles, and there were not many things in each bottle.

Xu Hongwen, who saw this, stepped forward and said, "Why did you take so many things out!" ”

Song Min with the tray walked very steadily, and he could hardly see the shaking of the tray in his hand, which was a habit that he had developed for a long time, and just turned out all the rare metals that he had refined some time ago, these small bottles were thrown into the debris pile, fortunately, these sundries were not cleaned very diligently, otherwise it would have been delayed for some time to be lost and re-refined, because these metals were of no use to them, so Song Min took them all out and gave them to Xu Hongwen.

Song Min replied with a smile: "These are all metals refined from rare earths, and we are useless, so we will give them to you!" ”

Xu Hongwen, who took over the tray, was also happy, of course, the more types of these rare metals, the better, and the various light colors of the LED have to be chosen, the reason why I only said those four just now is because Xu Hongwen didn't want to trouble Song Min too much, seeing that the names of rare metals everywhere were clearly written on these small bottles, his eyes were shining, and he said with a smile: "Song Min, thank you so much this time, otherwise these things are really difficult to get!" ”

"Anyway, there's no need to be polite between us!"

"Haha, good! In two days, everyone has time, so please drink, "please collect!" Ask for a recommendation!! Thank you