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When learning knowledge, you should follow a filter from simple to complex, and you can't just pick the most difficult problems to overcome overnight, so that greedy results will lead to easy frustration, so that you will have a sense of impossibility of what you want to learn, and eventually give up. Pen, fun, pavilion www. biquge。 info

Therefore, when learning programming, many examples start from the simplest, only in this way will it be easy for people to understand, get a kind of spiritual encouragement and satisfaction, so that there will be the motivation to continue learning.

Lin Hong was also like this when he was training Shu Xiaoxian.

When he first started, let her sense larger and closer objects, so that it would be relatively easy to identify, so he established a belief in his heart that "I can do it", and then gradually increased the difficulty, with the previous experience and confidence, it is very helpful for customer service to solve bigger problems.

One of the strategies that Lin Hong formulated for Shu Xiaoxian is contrast. Through the comparison of the two incomprehensible situations, let them distinguish the difference and memorize it. For example, the comparison of the size of the object, the comparison of distance, and the comparison of the material of the object.

This kind of training is not something he can practice wherever he wants, but through careful consideration.

Shu Xiaoxian is a very smart girl, although Lin Hong didn't tell her in detail why she trained like this, but she herself realized that she didn't need Lin Hong to let her do it, she could take the initiative to train herself.

When Si Qian and the nurse came in with the instrument, Shu Xiaoxian had already started to walk around the room, and obstacles such as chairs and bedside tables were also placed in the open space of the room.

When Si Qian returned to the room, she happened to see her walking around the room, and she was still making strange noises in her mouth.

She couldn't help but be slightly stunned. Confused, I saw her walking straight towards a chair. Just as I was about to shout out to Si Qian. suddenly saw Shu Xiaoxian directly move sideways and bypassed the side of the chair.

I saw that she walked a few more steps, and there was a wall in front of her, a few dozen centimeters away from the wall. Shu Xiaoxian stopped directly as if she saw it.

She turned. Towards the door, he said, "Mom, is that you?" Hey. Who else is there? ”

Si Qian listened to her words. Suddenly her heart was over, she immediately ran over excitedly, hugged Shu Xiaoxian, and asked quickly, "Xiaoxian, can you see it?" ”

As she spoke, she kept shaking her hands in front of Shu Xiaoxian's eyes. Unfortunately, the agate-like eyes did not react at all. It's still spinning on its own.

Si Qian also realized at this time that she was a little too excited, Xiao Xian's words just now, it was obvious that she couldn't see it, but she sensed that someone came in. For Xiaoxian's hearing, Si Qian also has some awareness, and it is not difficult to hear someone coming in.

But what happened just around the chair?

Thinking like this, Xiaoxian said happily: "Mom, my brother has given me a way to see things through sound, and I can see things in the room very easily." ”

"Oh?" Hearing this, Si Qian couldn't help but look at Lin Hong suspiciously.

Lin Hong smiled and said: "It's a kind of echolocation technique, which I inadvertently figured out before, and now it seems that it is quite easy to use." It just happens to be able to assist the activities of the little fairy, and after becoming proficient, it should be very convenient. ”

When Si Qian heard Lin Hong's words, she couldn't help but be even more surprised.

Echolocation?

When she heard the word, her first reaction was to think of the sonar system, and then to bats.

"Mom, it's true! I'll show you! ”

With that, Xiaoxian broke away from Si Qian's embrace and walked directly into the room.

After all, she is an eight-year-old child, and she has learned such a magical skill that it is like finding a favorite toy, and she can't wait to perform it for her nearest and dearest people and get their praise.

I saw that Xiaoxian was like a butterfly, walking briskly and walking back and forth in the room at a slightly faster speed than before, and whenever she encountered an obstacle in front of her, she seemed to really see it, and avoided it accurately and smoothly, and the same is true when she encountered a wall, and every time she stopped and turned before she could touch it.

On the surface, she is now completely no different from a normal person.

Si Qian was completely stunned.

Only then did she know that these things in the center of the venue were deliberately put up in order for her to do the test.

At the beginning, she was still a little worried that her daughter would be injured when she touched the chair in the center of the field, after all, Xiaoxian was too easy to get hurt, she was like a porcelain doll, she would be injured when she touched it. However, slowly, she gradually let go of this hanging heart, and Xiaoxian's performance made her feel surprised and happy.

Not only Si Qian, but also the nurse who had just come in with him were also stunned. Of course, she knew that the lovely daughter adopted by the director of the department was a blind person, and when she usually walked, she often had to pull Si Qian's placket before she dared to step forward, otherwise, she could only stretch out a pair of small hands and touch and touch in front with difficulty, which was slower than a snail.

When had she ever seen Shu Xiaoxian move as fast as she did now?

Thinking of their conversation just now, she couldn't help but be very interested in the echolocation that this handsome guy on the hospital bed said.

Can a blind person see? That's amazing, isn't it?

The tears in Si Qian's eyes came out, she hugged Shu Xiaoxian, and then said to Lin Hong sincerely: "Lin Hong, thank you!" ”

Lin Hong smiled and shook his head: "Xiaoxian is very cute, I like her very much, since she calls me brother, I should help her." ”

"You...... Able to speak? Si Qian looked at Lin Hong in surprise.

It was only at this time that she realized that she didn't know when, Lin Hong had regained her ability to speak.

"It's been restored for the time being, but the cause still needs to be found." Lin Hong pointed to his head, "Your massage was very effective before, and it felt very good." ”

Si Qian's massage skills are indeed excellent, and when she pressed it like this before, Lin Hong was pleasantly surprised to find that her brain, which had been unfazed, seemed to be a little loose, which showed that her previous speculation was likely to be correct.

As soon as Si Qian heard him talk about his condition, she immediately paid attention to it, she glanced at the nurse who had been beside her and did not leave, and said, "Huihui, I can come here, you can go and get busy first." ”

"Huh?" The little nurse was slightly stunned, and then nodded slightly disappointed, "Then I'll go out first, if there's anything, just call me directly." ”

She actually wanted to listen carefully to what Lin Hong said about the echo location, but she had to listen to the director's words, so she had to leave with some reluctance.

When Si Qian heard Lin Hong talk about his condition, she immediately paid attention to it, put other things aside first, and then took out a small notebook, carefully asked Lin Hong about the details, and then recorded it in the notebook little by little.

After doing this step, she began to get the advanced instrument ready, and then attached the detection electrodes to Lin Hong, and began to record his EEG and ECG.

After being busy with these things, she turned her attention to the "echolocation" technology that Lin Hong had mentioned before.

"Lin Hong, you tell me carefully about the echolocation you just mentioned, in such a short period of time, you can actually let Xiaoxian do this step, I have to say that you gave me a great surprise again." Si Qian looked at the man in front of her with a complicated gaze.

"This technology, as you should know by the name, is actually echolocation derived from animals. It is to use the echo to determine whether there is an obstacle ahead. You should have noticed that when Xiaoxian walks, she needs to make sounds in her mouth to create an echo. ”

Si Qian nodded: "Well, it's just that what I don't understand is that people can also do this?" This...... Seems difficult, right? ”

Echolocation is not a new technology, bionics has long done a very good job in this regard, and the sonar system on the submarine no longer knows what stage of development this technology has reached. But why has no one ever mentioned the use of this technology on blind people?

"It's not that hard." Lin Hong organized the language and said, "I guess there must be a blind person who has discovered such a technology, but it has not been made public." The plasticity of the brain is actually very strong. Blind people can't see with their eyes, and the corresponding hearing will be enhanced, and their sensitivity to sound is much higher than that of normal people. ”

Speaking of this, Lin Hong paused, he looked at Shu Xiaoxian, who was quietly staying on the side, listening to their conversation obediently, and then continued: "Actually, I didn't expect Xiaoxian to learn so fast. This may have something to do with the fact that she has a very strong hearing and memory, so she mastered this technique in just over twenty minutes. However, according to my estimates, it may take at least a week of training for others to become proficient in this technique before they can build up the conditioned reflexes. ”

Hearing this, Si Qian's beautiful eyes couldn't help but light up: "You mean that other people can also master this skill?" ”

"Of course, there is no threshold for this, basically as long as you have a certain amount of hearing. Even normal people with better hearing can master this technique after training. He didn't say this in his heart, but because he had his own test parameters. Although he discovered this method through superbrain, after detailed analysis, he found that in fact, in order to master this skill, it does not require too high requirements, and only scientific and effective training is needed.

"I already had the initial idea that after I was discharged from the hospital, I would set up a research group at the company to study this area and see if we could promote this technology among blind people. If it can be done, it will be considered to seek some welfare for the blind people around the world. ”

Lin Hong has always wanted to change the world through his own efforts, and this kind of thing is actually a kind of changing the world.

Changing the world, starting with changing the world of the blind! Lin Hong said to himself.