Chapter 410

Deng Yuqi and others were wondering, but they saw Li Qingyu's hand stretched out, as if he had picked up something from the ground, and then put it in front of him to watch carefully.

"Boss, what are you looking at? Why didn't I see anything? " Asked the little pig.

The others were equally dazed.

They didn't see anything in Li Qingyu's hands! It seems that Li Qingyu is just doing a performance of nothingness, or enjoying some air in front of him.

Li Qingyu looked up at all the people who were at a loss. Suddenly, he was very happy and said with a smile, "ha ha, you really didn't see anything?"

"Boss, will you say that anyone who can't see what you have is stupid? I'll tell you, actually I saw it. I really saw it! " Deng Yuqi said with a smile.

Li Qingyu rolled his eyes and didn't have a good way: "roll your rotten duck eggs! You think this is the emperor's new dress! Well, now that you see it, tell me, what do you see? "

"I saw the boss and his sister-in-law are slapping..."

Comrade Deng Yuqi's nature of death broke out again. He made a random nonsense, but he didn't notice that Lin Jingya was by his side!

Lin Jingya grabbed him by the ear and said, "Oh, old Deng, I haven't seen you for a few days. I'm good at it. I dare to make fun of you!"

"Oh, sister-in-law, please, please, sister-in-law..., please, I'll tell you a secret, a secret about the eldest brother and Xiaohong..." Deng Yuqi covered his ears and howled like a pig, shaking the whole apartment of No.5 villa buzzing!

Lin Jingya let go and asked with a smile: "who is Xiao Hong? What's the secret? Say... "

Li Qingyu's face turned black in an instant. He said quickly, "Xiaoya, don't listen to him. Xiaohong was a stray dog he adopted when he was in the University of Finance and economics. Because he brought it to the dormitory, it violated the dormitory management regulations. Later, she was knocked to death by the dormitory management aunt and brought it home to stew. She also sent us two doglegs. I don't believe you asked piggy and Lao Liu

When Lin Jingya sees Liu Jiayi and piggy nodding, she can't help but angrily pull Deng Yuqi's ear. Deng Yuqi hides behind Li Qingyu, but Li Qingyu suddenly extends his left hand to stop him!

"Don't run! DANGER! I've got a sword in my hand, a sword that's so sharp Li Qingyu said.

Deng Yuqi's nervous face changed. However, seeing that Li Qingyu didn't even have a sword in his hand, he said with a cheap smile: "Oh... This must be the emperor's sword in the new clothes! Wear invisible clothes, take invisible sword, and pretend invisible force. Boss, it suddenly occurred to me that the last time you were in the company, you were wearing the emperor's new clothes? We're all stupid. We only see a little neinei, or a woman with a cartoon... "

Li Qingyu's nose was almost crooked!

Nima, ah Cheng and ah Xin are honest. The goods are coming again. Which pot can't be opened!

Li Qingyu raised his foot to kick him, but saw that the goods had already hidden behind Tang Sixin and made a face at him.

He touched him with his hand and said, "OK, old Deng, just do it! You've lost your bonus this month! "

"Ah? It's not... Boss, you have to be kind... "Deng Yuqi's face suddenly became bitter gourd.

"How kind! To be kind to a bitch like you is a crime to a good man! Don't you believe I have a sword in my hand? Now let's see the sharpness of the sword

As Li Qingyu spoke, he took a long hair from Lin Jingya's shoulder with his left hand. His right hand was flat, as if he really had a sword in his hand. Then he raised his left hand to the top of his right hand and let it go, and a long hair fell down.

When the long hair fell right in front of Li Qingyu's right hand, it suddenly turned into two pieces and continued to float down to the ground.

Then Li Qingyu's wrist sank, and his right hand came down to the bottom of his hair. Everyone could see that the original two pieces of hair had become four!

Then Li Qingyu repeated the action just now, and his hair became eight!

At last, Li Qingyu twisted his right wrist slightly and sank again, and everyone saw that all the eight truncated hair were still in the air!

Although the hair is very light, no matter how light it is, it will not float in the air! Now these eight sections of hair are miraculously suspended in the air. There is only one possibility - something holds them!

Until then, everyone believed what Li Qingyu said. There is a sword in Li Qingyu's hand, an invisible sword with short hair and extremely sharp!

All the people were shocked!

An invisible sword - it's a killing weapon!

"I'll wipe it! It's a sword! What kind of material is this special made of? Why can't we see it? " Piggy stares at Li Qingyu's hand and wants to find his sword, but he still can't see anything.

"It should be a material with excellent light transmittance, better than glass, and its refractive index is very close to that of air! Because now we are under the light after all, so you can't see it. If you look carefully in the sun, you should be able to see a clue. "

As Li Qingyu was saying this, he suddenly snapped his fingers and said, "there's a way. Let's observe it in another way, and you can see it."

As he spoke, he stepped to a big fish tank by the wall and put his right hand into it.

A miracle suddenly appeared!

Everyone finally saw Li Qingyu's sword!

It's a transparent sword, about one meter long and half an inch wide. It's as thin as a cicada's wing. It's exquisitely carved in the water as if it were a handicraft, but it's full of cold breath. Even the goldfish in the water dare not approach it. They just watch curiously in the distance with their eyes bulging.

"Master, why can't the sword be seen in the air, but in the water?" Cheng suddenly grabbed his head and asked.

Tang Sixin three people also wonder at Li Qingyu, want to know the answer.

Deng Yuqi and Lin Jingya are different from ah Cheng, ah Xin and Tang Sixin. Ah Cheng, ah Xin and Tang Sixin have been practicing martial arts with their master since childhood, and they have learned Chinese culture and arithmetic in their culture class. They are real college students!

It's from the book mountain of mathematics, chemistry, life, politics, history and geography!

Li Qingyu said with a smile, "ah Cheng, ah Xin, can you see the air in front of you?"

Ah Cheng and ah Xin shook their heads together and said, "No

"If there is a bubble in the water, can you see it?" Li Qingyu pointed to the air pipe that was feeding the fish tank. There were bubbles at the end of the air pipe.

"Of course Ah Cheng, ah Xin said immediately.

"When bubbles appear in the water, we can see them because light is reflected and refracted when it comes into the bubble from the water. The material of this sword is very special. Its refractive index is very close to that of air, and its light transmittance is very strong! So when the sword is in the air, it reflects very little light, so it's hard for us to see it, but once we put it in the water, we can see it Li Qingyu said.

It involves some optical phenomena, which Deng Yuqi and others naturally understand, but a Cheng, a Xin and Tang Sixin have difficulty understanding.

So Li Qingyu didn't explain much, just said: "you don't need to know why, just know that this sword is not easy to be found in the air, but it is easy to be found in other transparent media. In fact, there's a mystery to this sword! "

With these words, Li Qingyu put his hands back into the fish tank and grasped the hilt of the sword. Then everyone could see that the sword in the fish tank suddenly became two!

As like as two peas!