How does the China diving team's "splash disappearing" work? Can you elaborate on it?

1. Generally speaking, the faster an object enters the water, the greater the splash. This is related to the knowledge of fluid mechanics. It is understood that the size of splashing water is related to the depth of water, the angle of entering the water, the contact area between the object and the water surface and the speed at which the object enters the water.

2. According to the principle of physics, when a wedge-shaped object enters the water, the water it touches will move in the direction without resistance, that is, the wedge-shaped object will splash the impacted water into the air. Simply put, a wedge-shaped object will splash more when it enters the water. On the contrary, if it is a square object, because the water is affected by the plane resistance, the impacted water will move laterally, and the spray will not jump out of the water surface because of the surface water pressure. In other words, when an athlete dives, the water mist with his hands folded vertically is much larger than that with his palms horizontal.

In addition, the diver's diving posture is also very important. In addition to the small splash caused by horizontal entry, there is another reason for athletes to enter the water horizontally. If the diver puts his hand into the water, his elbow will bend, the contact area between his body and the water will increase, and the resistance will also increase, which may make his body unstable and his falling action unstable, and it is more likely to cause a large area of spray.

It is reported that athletes must be straight if they want to enter the water with water mist. If his body is not tight, some parts of his body may be increased by water resistance when entering the water, leading to position deviation and unstable subsequent movements. When entering the water, keep your arms straight and put them in the middle. The head and ears must be clamped to produce water mist.

5. A perfect diving action includes seven links: take-off, connection, modeling in the air, observing the target in the air, opening, controlling and spraying water. The quality of each link affects the overall effect of the action. The only way for China team to do these steps well is to practice hard. From 6 am to 7 pm, they practice in the water and on the ground. Do three or four hundred take-off exercises a day.