Many people have the mindset to get the attention of others. Whether it's reading the news or reading other articles, many people like to write a few comments, regardless of whether they write it correctly or not. Some people know that they write comments that may cause others to be scolded, but they still write them happily, and these scolded comments are not paid a penny.

Now Peng Huading and their website offer so much money, no registration fee, no qualification review, and no too strict requirements, naturally many people are willing to write a few sentences.

Of course, there are also many people who want to scold a few words.

"The site is boring and makes a name for itself on this shoddy hype. Interesting? Your mother calls you back to dinner. ”

"Looking at the bounty notice on this, a feeling of IQ group arose in my heart."

"Really? This society is so speechless, I don't even dare to say whether it's true or not. ”

"Upstairs SB! You can't even tell whether this kind of kid's trick is true or false, and you're not afraid of lowering the IQ of human beings? ”

"Upstairs is sandwiched between sa and sc, are you insulting a child? Now kids are much smarter than you are. ”

"I feel the same way, now you can use a lollipop to attract a knife cut beauty to share a bed with you, but you use a lollipop to trick a little girl into watching a goldfish?"

"I'm a soy sauce guy."

"Brother sat on the small bench and munched melon seeds to watch the excitement."

“+1。 However, it seems that natural beauties don't need any lollipops, right? ”

"A thousand yuan is a lot, you can do a few pedicures."

……

However, although there are a lot of sour messages. But there are still many people who secretly write out their ideas, their own ideas, and then send them out.

Many of the people who sent this information were holding the mentality of giving it a try, and it didn't matter if they didn't win anyway, it was just a few minutes of wasted time, in case what the website said was true, and this kind of submission was confidential and didn't lose face.

In Yunfeng Technology Company, Peng Huading, Xie Zhanfeng, and Tan Jinhu are studying the power problem of the serpentine machine. The so-called research, in fact, to put it bluntly, is enlightenment, that is, Peng Huading constantly extracts some creative ideas from the various submitted information received on the website and puts them forward here, so that the two of them can think about it. Let them agree.

When their opinions tend to agree. That is, they were finally pulled to the right point by themselves, and Peng Huading recorded it in front of the collective wisdom. And when their opinions are not in agreement, or they do not understand what they are proposing at all, Peng Huading shows that he is the boss. It was the bosses who persecuted them.

In a word. The two new college students had to follow Peng Huading's baton. It's just that Peng Huading didn't do it so explicitly, which made the two of them feel that the design of this serpentine machine seemed to be really discussed by them, as if they were inspired by their creation. A lot of their ideas are distilled from the ones they collect on the site.

Peng Huading drew a sketch on the drawing board and said, "Tell me what you think, what kind of walking mechanism do you think we want to designate the serpentine machine qì person as." Xie Zhanfeng, you are the main person in charge of this project, you say it first. ”

Xie Zhanfeng fixed his sketch on the drawing board with a round magnet and said: "I think about it, I still think it is better to adopt a crawler-like walking mechanism." Why? Because I think that the working environment of the serpentine machine is very bad, it is not walking on flat ground, it has to climb rough paths, it has to go into holes in the ground, it has to climb branches, if you use a wheeled mechanism, there is no crawling power at all. The wheeled mechanism is good on flat ground, but on rough paths, there is no power at all in the burrows.

As for your concern that the crawler will be difficult to connect with its soft body, I think this is a dead end in your thinking, thinking that the whole serpentine must be pressed to the track. This naturally caused us great difficulties in installation. In particular, it is not possible to make a strong connection between the front and back. My construction is to take only a small section of the track at the front of its body, symmetrically distributed, and drag it at the back. In this way, the problems related to installation are solved. ”

The figure he showed no longer resembled the shape of a snake, more like a catfish, or like an elongated and enlarged tadpole.

Seeing that Tan Jinhu was about to laugh, Xie Zhanfeng said: "The purpose of our making this machine is to be useful, not to emphasize that it must be snake-shaped. Since this machine of mine can do the work of the serpentine machine, why not. I checked the machine designed by the famous university in our country, and it was just a concept and could not achieve practical results. Because the energy consumption is too large, a lot of energy is consumed on the unnecessary movement of extracting the metal frame, and the energy that is really used to move it is less than 10%, so it runs for a very short time, and it is not practical at all. Unless the so-called metal batteries are known in the future, batteries have a very high energy density. ”

Peng Huading smiled and said to Tan Jinhu: "Do you still think your wheeled walking mechanism is very good?" ”

Tan Jinhu said: "Yes. I think the wheeled mechanism is lightweight, simple to manufacture, and has a low failure rate. From our daily life, we can see that there are very few tracked types, only tanks, self-propelled guns, etc., only a small number of tractors, mobile cranes, and most of the walking equipment are wheeled, such as cars, trains, and even the wheeled mechanism used by the machine on the moon.

Just now Xie Zhanfeng said that the crawling force of the wheeled mechanism is small, that is to say, because the serpentine machine is light, and the friction between the wheeled walking mechanism and the ground is small, in fact, we can take other ways to solve it, just like the moon machine is like the wheel, and even sharp spikes can be installed on the wheel, so as to increase the friction.

The advantage of adopting a wheeled walking mechanism is obvious, that is, it is convenient to purchase a power mechanism, and only a micro motor needs to be purchased. The most prominent advantage is that the wheels can be installed on both sides of the entire snake body, instead of dragging the second half of the snake. Greatly improve its mobility and load capacity. ”

After the two of them finished speaking, Peng Huading said: "Both of you have worked hard for several days, but I think your vision is still not wide, you can't see far, and you still continue to strengthen yourself to connect the walking of the serpentine machine with the objects around us." There is no careful study of how to use the characteristics of snakes. We either don't do it now, and we will do the best if we do it, instead of pursuing the completion of this task in order to achieve it.

You already know the three forms of movement of snakes, that is, the first meandering movement, that is, the snake body makes a horizontal wavy bend on the plane, and the back of the snake body bends to exert force on the rough ground, which is equivalent to a person standing on a boat holding a bamboo pole, and the reaction force of the bottom of the water pushes the hull forward, and the snake relies on the reaction of the muscles at the bend to push the snake body forward.

The second is dragon boat sports. The ribs of the snake can use the vertebrae as a fulcrum and swing back and forth around the vertebrae with the drag of the muscles. When a part of the costal muscles contract, the ribs connected to it lift up and move forward, and the scales to which it is attached are relaxed and move forward.

The costal muscles then lower the ribs, and the posterior edge with the scales exerts force on the ground, and when the other rib muscle contracts, the ribs move backwards and press the ground forward, while the other part of the ribs is lifted off the ground.

And so on, part of the ribs lifted forward, part of the ribs pressed backwards, and the snake continued to move forward.

If the former exercise is equivalent to a person standing on a boat holding a bamboo pole, then this exercise is equivalent to rowing a dragon boat, the athletes on the dragon boat are equivalent to the ribs of a snake, and the oars in their hands are equivalent to the rib muscles of a snake.

The third type of movement is telescopic movement, when the front half of the snake's body suddenly stretches out, and when this part touches the ground, it is immediately pressed, and the rest of the body is propped up and suspended in the snake skin to move forward. This method is equivalent to a gymnast playing on the balance beam, first stretching out his hands and pressing on the balance beam, the body is suspended under the action of the hands, and then the body moves forward under the action of the muscles of the whole body. This type of movement is not only for snakes, but also for earthworms and soft-bodied caterpillars, who play this action again and again by holding down, then suspending and moving forward.

Many of the books that you have seen about the movement of snakes are wrong, or they are mysterious, some are right and some are wrong, so they restrict your imagination and creativity. Now that I've explained how the snake moves, let's talk about how to achieve all three of them, or whether we should take all three or just one or two. ”

was said so vividly by Peng Huading, Xie Zhanfeng and Tan Jinhu both understood a lot in their hearts, and it was no longer the specious concept when they read books. In particular, Peng Huading's decomposition of the snake's movement into bamboo pole boating, dragon rowing, and athlete moving on the balance beam made them feel very vivid, very easy to understand, and it was easier for them to think about how to take a mechanical approach to achieve these three movements.

Xie Zhanfeng immediately said: "Boss, I think we will focus on one kind of dragon boat sports if we achieve the easy ones first. Because the meandering movement requires too much flexibility for the whole mechanism, we can't achieve it for the time being, and I can't find a good way for a while. The telescopic movement has high requirements for the whole machine, the inner cavity must have several layers, the snake's muscles can be flexibly stretched and contracted, and our materials can not do it for the time being, at most it is folded and relaxed, which occupies a lot of places and makes the machine easy to loosen. ”

Seeing that Xie Zhanfeng's words were very much in line with his heart, Peng Huading immediately said with certainty: "Very good." I agree with your idea, let's first attack the machine qì people how to take the dragon boat style forward. (To be continued......)

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