“This is called the Nicholas egg stand!” After hearing Xixi’s whisper, Lu Benjie turned to look at her with a smile and introduced, “Didn’t we just not be able to spin the egg upright? But this Help us make the eggs stand up and spin!”
Xixi hadn’t gotten rid of the embarrassment just now. She accidentally flew and broke the eggs that Aunt Lu cooked for Uncle Lu. She felt guilty and embarrassed and quickly avoided Uncle Lu. Eyes, eyes fell on the strange box.
The Nicholas egg stand mentioned by Lu Benjie 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 didn’t learn this in his previous life, and he is now Watching with interest.
Don’t talk about Yang Yi, other parents are also stretching their necks curiously, if they are still a little reserved, they probably want to hang out with the children.
At this time, Lan Xin, who had her eyes fixed on the broken egg, regained her senses. She asked curiously, “However, the egg is already broken, how can it be turned?”
“That’s a good question!” Lu Benjie, like a conjurer, conjured an egg-shaped copper block out of nowhere, and showed it to the little guys with a smile, “This machine does not use our ordinary eggs. , but with this copper egg that you see in my hand.”
Of course, Lu Benjie once again demonstrated to the children that on an ordinary countertop, this copper egg still cannot stand upright.
“Next, it’s time to witness the miracle, all the children are optimistic, don’t blink!” Lu Benjie said deliberately with a bluff.
The atmosphere seemed to be tense. The eight children were all staring at the wooden box, the wooden plate, and the copper egg in Uncle Lu’s hand. They didn’t dare to breathe.
The same is true for Xixi. She heard that she was going to witness a miracle, and her big bright eyes showed excitement.
I saw Uncle Lu put the copper egg on the wooden plate casually, flipped the paddle switch below, and there was a humming sound from the motor below. However, at this time, the wooden plate was motionless, not spinning as fast as the propeller just now.
Next, the children saw that Uncle Lu turned the copper egg at random, and it started to spin.
But it doesn’t seem right!
The outspoken Chen Shiyun immediately raised his hand and asked in confusion, “Uncle Lu, that’s not right! The egg didn’t stand up!”
“Yeah, so can I!” The little girls around her all started talking.
But at this time, Lu Weisha exclaimed softly and diverted the children’s attention, because just as they were talking, the spinning copper egg actually turned by itself, stand up!
“It’s amazing!” Xixi’s eyes, which were already big enough, opened wider in surprise. She couldn’t help but turn her head and looked at her father in surprise, as if she wanted to make her unbelievable at the moment. Share your feelings with your dad.
The principle of this egg stander is not complicated. It uses the rotating magnetic field to make the egg rotate, and relies on the rotating effect to make the egg find the most suitable rotation posture – because the egg is elliptical, it can only stand up and use It is stable only when the long axis is rotated as the center.
But after all, it still uses physical principles that many children have not learned. Lu Benjie demonstrated it again and began to explain it to the children. It’s not very clear, they all open their mouths and look at them in a daze, even the smart Xixi doesn’t seem to understand.
Seeing this, Yang Yi smiled and pointed to the wooden box from behind, and said to the children, “Uncle Lu means that our box uses a more complicated machine to imitate a pattern that we can’t see. The strength, called magnetism, helps us hold this copper egg, as if we were holding it with our hands, so that it can stand and turn!”
It turned out to be like this. Although there are still a few slow-responsive little girls with their heads tilted and puzzled, Xixi and Yang Luoqi, Yu Xiaowei and other little girls understand it, Xixi is still in her own position, ” Hee hee” smiled, twisted his little butt, and said, “Well, that’s too powerful, you can’t even see it!”
Lu Xiaoyu rubbed Xixi’s arm and said innocently: “I know, it must be magic!”
At this time, Lu Benjie greeted the children to come to another lower table, so that everyone can gather around, and they can observe without sitting down, which is convenient for walking.
“That was just a little magic. Next, we will witness an even more magical magic, a magical magic that you can’t think of at ordinary times!” Lu Benjie said mysteriously.
“There’s magic again!” Lan Xin and Chen Shiyun cheered happily. The other little girls also laughed excitedly, and Nan Zhaoyu jumped with joy.
I saw Lu Benjie brought over a well-polished round pad, made of wood, heavy, I don’t know what was stuffed in it, and he took out a small top, a bit like the last rotation in Inception The one, but it is not integrated, the yellow bracket and the bronze-coated vertebral body are exquisite and cute!
Falling into the eyes of the children, it seems like some magical little toy, attracting their attention.
“Has any children played with this spinning top?” Lu Benjie asked.
Suddenly, including Xixi, several children raised their hands excitedly, but Xixi was a little embarrassed, raised her hand, and hesitated whether to put it down.
“How many children haven’t played yet? Is there any child willing to come up and show you how the top spins?” Lu Benjie asked with a smile.
At this moment, Xixi timidly withdrew her little hand, she was still thinking about the mistake just now, it would be bad if she messed up again!
Lu Benjie wanted to call her, but Xixi withdrew her hand. Lu Benjie was embarrassed to make this privilege too obvious, so he named the more active Chen Shiyun.
There is nothing to say about turning the top, the technique is similar to turning an egg, but next, Lu Benjie asked Chen Shiyun to give a demonstration by the way, which made Xixi, who had been watching, envious!
I saw that Lu Benjie asked Chen Shiyun to spin the top on a small cover. Then, Lu Benjie gently lifted the small cover, not too high, just a distance of one or two centimeters. At this time, the top was still spinning on the cover .
Xixi was very surprised to see that Uncle Lu pulled down his hand gently, and he took the cover away, but the top actually floated in the air and kept spinning.
“Magic!” Lu Xiaoyu exclaimed.
“That’s right, this is the magnetic magic we created with the same magnetic force. Look, we don’t have any support here!” Lu Benjie also smiled, took a glass, and turned it sideways. The top was installed, and then removed again~IndoMTL.com~ The top seems to be unaffected at all, and continues to hover in the air and spin with a slight swing!
“It’s amazing!” Xixi was envious.
The little girl has some regrets, why didn’t she try bravely? It would be great if I could try it together. It’s not fun just by looking at it. How good would it be if the top was rotated by myself, and I could also participate in this “magic”?
I missed Uncle Lu’s magic!
Thinking of this, Xixi pouted her little mouth dejectedly because of her regret. Although she didn’t say a word, she took a step back and hugged her father sadly, and hugged her father’s free hand, feeling unhappy. He counted his father’s fingers.
What is the principle of magic? Xixi didn’t really care, she couldn’t listen to Uncle Lu’s eloquent explanation, but just stared at the spinning top.
“Do you want to play too?” Seeing this, Yang Yi could probably guess her daughter’s thoughts and asked with a smile.
Xixi pursed her lips, looked back at her father, and nodded slightly embarrassedly, she was afraid that her father would laugh at her for breaking the egg, and her little head lowered again, with the shaking little butt, to show their inner desires.
Yang Yi patted the little girl’s head gently and smiled: “Wait a minute, wait for Uncle Lu to finish speaking.”
Yang Yi didn’t break his promise. When Lu Benjie finished speaking, he asked him to stop the top first, and asked each child to try it in turn: “Only by trying it out can we have a deeper understanding.”
Xixi saw that Uncle Lu agreed, and a surprised smile appeared on her little face again. Waiting in line was nothing, when it was her turn, Xixi took her father’s hand happily and said reliedly, “Baba, I’ll play with you, okay?”
The little girl is worried about her mistakes! Only when her father follows, she has confidence.