After writing for more than ten minutes, Yang Xixi racked his brains and couldn't think of anything good anymore, so he put down the pen.

"Write them all! Li Feng said with a smile, there is a future super inventor by his side, no matter whether it succeeds or not, he can't say anything if he doesn't write something he wants.

No one is as cheeky as Yang Xixi, Li Feng didn't write, and no one dared to step forward.

"It's okay, I'm the finale. Li Feng doesn't care who writes first and who writes later, if he can, if he can, Chang Shan will definitely help him study first.

"Then I'll come!" Fang Zihan stepped forward, thought about it, and wrote two things: "I want equipment that can quickly relieve physical fatigue, jersey protectors that can prevent injury, and the jersey should also have the function of air conditioning." ”

Aunt Feng, Lin Siyun, and Ah Fei also stepped forward in turn.

In the end, it was Li Feng's turn.

He picked up his notebook and looked at it.

couldn't help but laugh dumbly, Aunt Feng actually wanted a robot that could automatically mop the floor, wash dishes, and do housework.

Isn't this looking for a competitor for yourself?

Looking at Lin Siyun again, she actually wants to be able to go back to the time machine.

This thing is more difficult than a 100% realistic virtual device.

What's more, why does Lin Siyun want this thing?

Li Feng couldn't figure it out, this girl, although she suffered before, she was about to become the most awesome romance novel writer, and she was getting closer and closer to her dream of becoming a big star, why did she want to go back to the past?

This thing, Ah Fei wants to be forgivable.

After all, the assassination left him without his mother and sister, and left him with a frenzied training for more than two decades.

Looking at Ah Fei's again, he wants a device that can treat any disease.

Li Feng picked up the pen, what do you want?

After thinking for several minutes, he wrote down two in his notebook: the Superman suit and the character appraiser.

Looking at what everyone wrote, Chang Shan was dumbfounded.

Fortunately, he is confident that he will be able to study it in his lifetime.

What kind of eternal youth device, 100% virtual reality device, time machine, treatment of any disease...... He felt that if he could research and invent one of them in his lifetime, it would be comparable to or even surpass the birth of the Internet, so that the whole world would enter a new era and become a great and immortal legend.

"Uncle Chang, are you scared?" Yang Xixi stepped forward with a smile.

"A little. Chang Shan nodded.

"Don't be pressured, it's all a joke. Inside, there are a lot of technologies that are ahead of the times, even if you are the greatest inventor of the future, it is not bad to be able to research a scale and half a claw. Li Feng said with a smile.

"Yes, yes, yes, it's best if you can achieve it, and it's okay if you can't. Yang Xixi said happily.

Chang Shan smiled and nodded: "I don't know what Xiang Xin wants, so he is left alone and has not written." ”

"He's probably an instrument that he never gets enough to eat, an instrument that never gets tired of playing, and an ......instrument that doesn't need to learn anything," Li Feng teased.

Chang Shan was speechless, all of them were super difficult.

"Alright, no kidding. You continue to play cards, Zihan, you do it for me. Chang, come with me for a few words. ”

Li Feng patted Chang Shan and came to the living room.

After motioning to Chang Shan to move a stool and sit down, Li Feng asked: "The prospect of this eye fatigue massager should be very good, as long as the price is not too expensive, it is estimated that most families will buy one, how much does it cost?"

"Fifty thousand. Chang Shan explained: "The main reason is that it needs to use a lot of expensive rare metals and small instruments, replace them with other metals, and also need to invest a lot of experiments." As for the small instruments in-house, a lot of time is also invested in research and development. ”

Li Feng couldn't help frowning: "So, even if it's mass production, the cost can't be reduced too much?"

"I don't know very well, I heard Xiao Liu, who is in charge of everything, say that if it is mass-produced, although the cost can be reduced, it can't be reduced too much. If you want to significantly reduce the cost, you have to replace the precious metals inside, and you have to develop and replace those small instruments that are in the patent protection period. ”

Chang Shan smiled embarrassedly, he only knew how to research inventions, and the rest was all hands-off shopkeepers. That's all, he still knew that Li Feng might ask, so he deliberately learned about it.

"The cost is 50,000 units, so you have to sell for hundreds of thousands to make money......"

Li Feng also didn't know anything about this, and he asked, "How much time does it take to replace the precious metals and expensive small instruments inside?"

"Even if you have a lot of money, it should take two or three years to put your energy into it. Because there are so many trials to be done, there are too few research assistants to do. For some small instruments, it is more difficult to invent a substitute than to invent an eyestroke massager. Tsuneyama explained.

Li Feng couldn't help grinning, he said helplessly: "Sell it for more than 100,000 yuan, just 100,000 yuan! The effect is there, and there should be many wealthy families willing to buy it." Replace materials or something, make money and take your time, I don't have that much money to support you. ”

"That's what I thought, too. Chang Shan nodded, and he gushed excitedly: "Give me a few more years, and I believe that the cost of an eye fatigue massager will be reduced to the extent that it only needs dozens of yuan." And, the features will definitely be more powerful as well. At the very least, I originally designed that one minute was worth an hour of deep sleep, but I didn't do it because the technology of the small equipment inside was not enough. If I had developed these small instruments myself, I would have been able to meet this requirement. ”

"Have you applied for patents or anything?" asked Li Feng.

"Applying. Chang Shan nodded.

"Then it's only left to find a partner...... Li Feng wanted to mention a few words about this half bucket of water, scratched his head, and held back for a long time before he said: "This thing, you have to find an honest and reliable one." ”

No way, he doesn't understand.

Chang Shan nodded seriously, and took out a small notebook, recorded it, and copied it twice.

After copying, he introduced: "In this regard, I will leave it to Xiao Liu." He said that we can find a small factory to cooperate with in the early stage, and the initiative and most of the profits can be held in our hands. Although in this way, the output cannot go up in a short period of time, but we are taking the high-end route in the early stage, and we don't need too much output. As for sales channels, he will find a way to develop them online first, so that he can also reduce middlemen and do not need to find any partners. ”

Li Feng nodded, it's not bad to grow stronger slowly like this.

In fact, if you really want to find a partner, Fang Tianlin is the best candidate.

He has a lot of money, a wide range of contacts, and Fang Zihan's relationship, so his mouth will not be too dark.

But in this, there is always a conflict of interest, and once it develops, the conflict of interest is not as big as the average two, so he finally dispelled this idea.

He didn't want his students to be at odds with each other in the future because of huge interests.

It's okay to help each other, it's okay to cooperate temporarily or somehow, it's okay to get involved too deeply!

He also wants to wait for the students to graduate, idle and bored, and organize a few class reunions to be lively!

"By the way, this kind of eye fatigue massager, can you make some of it yourself at the research base?" Li Feng left those messy things behind.

"Of course you can, too much can't do it, three or five a day is still no problem. ”

"Then let's get one first, and remember to make a few more for me to give away. Li Feng smiled brightly, Ruoxin likes to read books as much as he does, but the type is different.

Soon she will be back from summer vacation, just in time to give her a big surprise.

Tsuneyama nodded.

"You can do the rest yourself!"

Li Feng got up and decided to try the eye fatigue massager.