"This is called Nicholas Egg Stander!" Lu Benjie turned his head to look at her with a smile after hearing Xi Xi's whispering, and introduced, "Couldn't we just spin the egg upright, but this can help us make the egg stand up and spin!"

Xi Xi hadn't gotten rid of the embarrassment just now, she accidentally flew and broke the eggs that Aunt Lu boiled for Uncle Lu, she was guilty and embarrassed and quickly avoided Uncle Lu's eyes, and her eyes fell on the strange box.

The Nicholas egg maker that Lu Benjie said is actually just a special name for this world, in Yang Yi's previous life, this thing was called Tesla's Columbus egg, of course, Yang Yi had not learned these in his previous life, and he was looking at it with interest now.

Not to mention Yang Yi, the other parents were also curious to stretch their necks, if they weren't a little reserved, they probably wanted to mix with the children and watch.

At this time, Lan Xin, who was looking at the broken egg with her eyes, came back to her senses, and she asked curiously, "But, the eggs have been broken, how can they turn up?"

"That's a good question!" Lu Benjie seemed to be juggling, and he didn't know where to conjure up an egg-shaped copper block, and showed it to the little ones with a smile, "This machine is not using our ordinary eggs, but using this kind of copper egg that everyone sees in my hand." ”

Of course, Lu Benjie still showed the children again that on the ordinary table, this copper egg still can't spin and stand up.

"Next, it's time to witness the miracle, the children are optimistic, don't blink!" Lu Benjie said deliberately bluffing.

The atmosphere seemed to be tense, and the eight children were all staring closely at the wooden box, the wooden plate, and the copper egg in Uncle Lu's hand, and they didn't dare to breathe.

Xi Xi was the same, when she heard that she was going to witness a miracle, her big bright eyes showed excitement.

I saw Uncle Lu casually put the copper egg on the wooden plate, and flicked the paddle switch below, and there was a buzzing sound from the motor below. However, at this time, the wooden plate did not move, and it did not spin as fast as the propeller just now.

Next, the children saw that Uncle Lu spun the copper egg casually.

But that doesn't seem right!

Chen Shiyun, who was outspoken, immediately raised his hand and asked in confusion: "Uncle Lu, it's not right!

"Yes, I can do it too!" said the little girls beside her.

But at this time, Lu Weisha exclaimed softly, and diverted the children's attention again, because while they were talking, the spinning copper egg actually spun around on its own and stood up!

"It's amazing!" Xixi's eyes, which were already big enough, opened wider in surprise, and she couldn't help but turn her head and look at her father in surprise, as if she wanted to share her incredible feelings with her father at the moment.

The principle of this egg erector is not complicated, that is, the egg is rotated by using the rotating magnetic field, and the rotation effect makes the egg find the most suitable rotation posture by itself - because the egg is oval, it is stable only when it stands up and uses the long axis as the center to rotate.

But after all, this still uses the physical principles that many children have not learned, Lu Benjie demonstrated again, and began to explain to the children endlessly, the little ones listened to the clouds, understood some but did not understand, one by one opened their small mouths, looked in a daze, even the smart Xixi did not show that he understood.

Seeing this, Yang Yi smiled and pointed to the wooden box behind him, and said to the children: "Uncle Lu's meaning is that our box uses a more complex machine to imitate a force that we can't see, called magnetism, to help us hold this copper egg, as if we are holding it with our hands, so that it can stand and spin!"

It turned out to be the case, although there were still a few slow reactions who tilted their little heads and looked confused, but Xixi and Yang Luoqi, Yu Xiaowei and other little girls understood, Xixi was still in her place, "hee" smiled, twisted her little buttocks, and said: "That, that's too powerful, I can't see it!"

Lu Xiaoyu rubbed Xixi's arm and said innocently: "I know, it must be magic!"

At this time, Lu Benjie beckoned the children to come to another lower table, so that everyone could gather around and watch without sitting down, so that they could move around.

"That was just a small magic just now, and next, we are going to witness an even more magical magic, a magical magic that you can't usually think of!" Lu Benjie said mysteriously.

"There's magic again!" Lan Xin and Chen Shiyun cheered happily. The other little girls were also laughing excitedly, and Nan Zhaoyu also jumped happily.

I saw Lu Benjie move over a polished round pad, made of wood, heavy, I don't know what was stuffed in it, and he took out a small spinning top, a bit like the last one in Inception, but it was not made into an integration, the yellow bracket, painted with bronze cone, but it was also delicate and cute!

In the eyes of the children, it seems to be like some magical little toy, attracting their attention.

"Has any of the children ever played with this spinning top?" asked Lu Benjie.

Suddenly, several children, including Xixi, raised their hands excitedly, but Xixi was a little embarrassed, raised their hands, and hesitated to put them down.

"How many children haven't played before, and who would like to come up and show you how this spinning top turns?" Lu Benjie asked with a smile.

At this moment, Xi Xi timidly retracted her little hand, she was still thinking about the mistake just now, it would not be good if she messed up again!

Lu Benjie originally wanted to call her, but Xixi retracted his hand, and Lu Benjie was embarrassed to show this privilege too obviously, so he named the more active Chen Shiyun.

There is nothing to say about spinning tops, and the techniques are similar to turning eggs, but then, Lu Benjie asked Chen Shiyun to do a demonstration by the way, which made Xixi, who had been watching just now, envious!

I saw Lu Benjie ask Chen Shiyun to rotate the spinning top on a small cover, and then, Lu Benjie gently lifted the small cover, not too high, just a distance of one or two centimeters, and the top was still spinning on the lid at this time.

Xi Xi quickly and was surprised to see that Uncle Lu gently withdrew his hand, and the lid was taken away by him, but the spinning top was actually suspended in the air, and it kept spinning.

"Magic!" Lu Xiaoyu exclaimed.

"That's right, this is the magnetic magic we created with the same magnetic force, you see, we actually don't have any support here!" Lu Benjie also smiled, took a glass, and put the spinning top sideways, and then took it away, the top didn't seem to be affected at all, and continued to float in the air and rotate slightly with a slight wobble!

"It's amazing!" Xixi was envious.

The little girl regretted a little, why didn't she try it bravely? It would be nice if she could try it together, it wouldn't be fun just to look at it, if this spinning top was spun by herself, she could also participate in this "magic", how good would it be?

I missed Uncle Lu's magic!

Thinking of this, Xi Xi pouted depressedly because of regret, although she didn't say anything, she took a step back, snuggled up to her father a little sadly, and hugged her father's free big hand, and counted her father's fingers sullenly.

What is the principle of magic? Xixi didn't really care, she couldn't listen to Uncle Lu's gushing explanations, she just stared at the spinning top that was still spinning.

"Do you want to play too?" Seeing this, Yang Yi could probably guess his daughter's careful thoughts, and asked with a smile.

Xixi pursed her lips, glanced back at her father, and nodded embarrassedly, she was afraid that her father would also laugh at her for breaking the eggs, and her little head lowered again, using her shaking little butt to show her inner desire.

Yang Yi gently patted the little girl's head and said with a smile: "Wait a minute, wait for Uncle Lu to finish." ”

Yang Yi didn't break his promise, and when Lu Benjie finished speaking, he asked him to stop the spinning top first, and let each child take turns to try it: "Only by trying it yourself can you have a deeper understanding." ”

Xixi saw that Uncle Lu agreed, and a surprised smile appeared on her little face again. Queuing is nothing, and when it was her turn, Xixi happily took her father's hand and said very dependently: "Baba, I'll play with you, okay?"

The little girl was still worried that she would make a mistake! Only when her father followed her, could she have confidence.