When they came to the open space in front of the door, they happened to see Jia Yi walking the magic puppet he had made.

Kaichi stood on one side, then watched the magic golem walk from side to side, and then back again, just over and over again.

When he saw the appearance of the magic puppet clearly, Yang Xi couldn't help frowning, really, it was the first time he had seen someone who could make a magic puppet so "personal", it was really a personality.

Although the magic puppet has declined, it is not completely gone, such as Jia Yi saw Ta Ling in the Mage Association, in fact, he was born from a magic puppet.

But other people's puppets are either mighty or hideous, and some even look evil and amiable, but like Jiayi, it should be the only one that looks so unique.

Retro kids...

Seeing this puppet, Chester, who came with him, blurted out: "It's really so ugly." ”

Kaichi looked at him fiercely, and really wanted to use a spell to seal his mouth.

Before Jia Yi could speak, March spoke: "Chester, how can you say that, it's not ugly, it's a feature, you know, ugly is a feature." ”

However, the indescribable mockery in her tone was more like falling into a well.

Yangxi also asked, "Jiayi, didn't you say that you would help us see the magic jet skateboard? You wouldn't have put all your energy into this and never thought about skateboarding, would you?"

As he spoke, he stepped forward and gently kicked the magical mechanical puppet, but the puppet didn't react at all.

Jia Yi took two steps forward, pointed to the puppet and said to Yanxi, "Didn't you see something?"

"What should I see? The workmanship is very... It is not very delicate, it is also very bulky, and it is all made of wood, which has low strength, is afraid of fire, and lacks practical value. Yancy said as he looked at the puppet.

Jia Yi looked at him helplessly: "Did I let you see this, I know all this, you look at its feet." ”

Yangxi looked down: "What's wrong with the feet? It's also a big square, and it can be seen through the footprints, although your puppet is tall, it doesn't look so bulky, is it because of the use of wood? ”

Jia Yi covered his chest and felt a little tightness in his chest: "Didn't you notice that although this puppet looks a little shaky, it actually walks very steadily and doesn't fall down once?"

"So what? Isn't it normal to walk on two legs? Not on one leg. Chester said.

Ma Duo reacted a little and said: "It's different, it's normal for four legs to be stable, and two legs actually have higher requirements for balance." ”

As he spoke, he walked in front of the puppet and watched the puppet move forward step by step, then turned back again.

He asked, "You're not balanced, are you?" We've thought about using balance on top of the skateboard, but it's the same old problem, as soon as the jet system is activated, the balance is disrupted, and then the whole thing is messed up, and the balance can't be corrected. ”

Balancing is actually an enhancement of the recipient's physical coordination, and is of little use to machinery.

Jia Yi stretched out his thumb: "The answer is correct, the puppet does not use balance techniques inside, it uses a gyroscope, a magic gyroscope, which can distinguish subtle changes in direction and adjust the posture in time to make the movements more flexible and controllable." ”

Yancy said, "Gyroscope, but you puppet can't see any neatness in your movements." ”

To put it simply, the original gyroscope is indeed related to the gyroscope, the gyroscope that rotates at high speed can keep moving without collapsing, and the central axis is perpendicular to the ground, according to this principle, the gyroscope is obtained, which can determine an invariant direction in the place where it is not up and down. In general, it is a rotor that rotates at high speed, and because of its inertia, its axis of rotation is always pointing in a fixed direction.

Jia Yi found that among the puppets used for this connection, there is a gyroscope system used to help the puppet maintain its own balance, and this gyro system is a magical structure, and there is no need to put a real gyroscope in it, and it does not occupy much space.

He originally thought that the gyroscope had not yet appeared, but he did not expect that someone had already thought of a similar law of conservation of angular momentum, but it was not called that name.

With this, Jiayi was able to install it on their air hoverboard and use it to control the posture of the skateboard.

After hearing this, Chester was still a little unconvinced: "But even if we detect the tilt of the skateboard, what can we do? ”

"How come?" said Jia Yi took a step forward and pushed the puppet hard, pushing the puppet back slightly, but the puppet's hand waved slightly, and the balance was restored.

"You see, it's as simple as that. Kaichi clapped his hands and said.

Although Chester still doesn't quite understand what Kaichi is pushing the puppet for.

If it weren't for the magic gyroscope method from the golem, Kaichi would have spent a lot of time figuring out the balance of the skateboard, and the effect would not have been great. He actually had some ideas, but since he discovered the gyroscope, he has overturned them all.

Jancy saw it and said, "I'll go get our skateboard and show you, and you can see how it can be improved." ”

After saying that, he ran back to Majiajia's laboratory, brought out a skateboard, and handed it to Jiayi.

Jiayi controlled the puppet to catch the skateboard: "Look, this puppet is not as useless as imagined, it is still somewhat useful, at least it can do some heavy work." ”

"You spend the materials to make a puppet and hire a maid who can not only carry your skateboard, but also help you clean up, wash the dishes and cook, and it will definitely take longer than your puppet. March pouted from the side, striking Kai arrived.

Jiayi is not used to it, so he didn't buy a maid, and the hygiene of the house has to be taken care of by himself, Marchie They live in Jiayi, of course, I'm embarrassed to let Jiayi clean, so she does the work of sweeping the floor and washing the dishes, she wants to send a maid to Jiayi, but Jiayi doesn't want it.

Ma Duo does not live outside for a long time and spends more time on campus, so there are no maids.

Jiayi ignored March's complaints, she always wanted a maid to take care of herself, but there was no slave trade here in the academy, and it was actually more troublesome to buy a maid, plus Jiayi's personal wishes, March's proposals were rejected by Jiayi several times.

followed Jia Yi to the underground laboratory, and when he saw the dirty appearance in the laboratory, March couldn't help but say, "Look at the mess here." ”

Jia Yi couldn't help but forgive: "Okay, okay, I'll clean it up later, isn't it busy during this time, and although it looks chaotic here, I'm in an orderly mess, and it's very convenient to find what I need." Besides, I don't dare to let ordinary people in the laboratory, it's too dangerous, and if I'm not careful, I'll have to be buried in this laboratory. ”

As he spoke, he cleaned up a spot from the workbench, put the skateboard on it, and began to look closely at it to see if they could improve the jet skateboard.

The main structure of the skateboard has not been greatly improved, whether it is the appearance or the rune steel plate inlaid inside that depicts the magic circle, it has not been modified much from Jiayi's original design. Only in the final section, the rune steel plate is lengthened a little, and a wind formation is depicted on it, capable of spewing strong air currents to propel the skateboard to walk.

Jiayi conducted some tests on this skateboard, and the balance of the jet circle behind the skateboard was not good, and the thrust generated did not act on the mass of the skateboard, which was easy to deflect the skateboard, which would cause the skateboard to lose control when it turned, and then overturn.

But the most important thing is that the back of the skateboard is not smooth enough and does not have enough arc, which causes the airflow to be blocked by the back of the skateboard, resulting in turbulence and affecting the stability of the skateboard.