"Just try it." Zhou Yan smiled, "You will know how difficult it is after you try it! I have been practicing for a long time before I can float for six consecutive times!"

The girl lowered her head and picked up a stone casually.

Zhou Yan immediately said: "No, no, you can choose a flat or disc-shaped stone if you don't choose a stone well!"

"It's okay, I'll start."

"My sister, everything must be rigorous!" Zhou Yan had a strong sense of variety show. He forced the stone to pull off the stone from Xiangyi's hand, led her to carefully select it, and commented on the stone one by one, "It's not OK to be too big; it's not OK to be too fat; it's not OK to be too ugly."

The variety show effect came out all of a sudden.

——【Yan Baoyan Dog is a real secret!】

——【Yan Sansui took Yimei to find stones, so cute!】

——[I laughed so hard that Yimei was ascending to heaven. It was so difficult for me to take care of her baby every day. Yuyu little baby, Lanlan little brother, now there is a giant baby to extend her treasure!]

…

Finally, Zhou Yan chose the right stone and came to Duan Science Popularization in a serious way:

"Yimei, do you know why stones can be bounced when they are floating? In fact, it is very simple. The greater the flow rate, the smaller the pressure.

The density of a stone is greater than that of water. When the water is wafted, the water will flow rapidly in a short time, so the water surface will put pressure on the stone.

When the pressure is greater than the gravity of the stone, the stone will bounce. The more times this situation is repeated, the more times the stone will jump on the water."

Xiangyi agrees: "Well, the principle of fluid mechanics."

Zhou Yan gave a thumbs up: "Smart."

The audience in the live broadcast room were almost stunned.

Wouldn't it be wasted?

Why are you still so advanced?!

Xiangyi weighed the stone in his hand, and I have to say that Zhou Yan chose this piece very well and felt very good.

The girl pinched the stone with her thumb and thumb, and her index finger was behind her. Seeing her gesture, Zhou Yan called out to the expert: "Hey, expert!"

Xiangyi smiled calmly and slowly bent down. Her posture seemed to be elegant and casual. She seemed to have no strength to pull the stone with her index finger, but the stone was swirled and threw it out with extremely strong force!

"Bang!"

"Bang!"

“…”

After more than a dozen consecutive sounds, the stone sank to the bottom of the water!

Zhou Yan:?

audience:?

Is it an illusion? It must be?!

Xiangyi said "hum" and seemed to be unsatisfied with the results. She took out a spare stone and threw it out again!

The familiar "bang" sound once again dominated everyone!

This time, it sounded twenty-three times!

Zhou Yan was stunned.

Thinking of what he said just now, "I'll teach you brother," he said, "Hey, brother," he was licking the soles of his shoes awkwardly, and he wanted to jump into the pond on the spot!

This is fucking... this is unscientific!

The girl opened her cherry lips lightly and her voice was soft: "A professor once summarized a famous equation - the water-washing equation through conditions such as the weight and speed of the stone and the influence of air."

Zhou Yan was confused: "Ah?"

The audience was in a daze: [Yimei was fooling people, right? Yes??]

I just listened to Xiangyi and continued: "This equation is: MxA=P–MG air influence. M represents mass, A represents vertical acceleration, P represents water surface feedback pressure, and MG represents gravity.

Through this equation, the research on the problem of 'aircraft freezing' has played an important role and has also been applied in the field of criminal investigation to calculate the splash of blood."

Zhou Yan:???

audience:???

It's disturbing, it's really disturbing.

Is this science?
Chapter completed!