On March 4, Beijing time, in the women's 10-meter platform final of the 2024 Diving World Cup Montreal Station, Chinese team player Chen Yuxi won 415won the championship with 35 points, and Quan Hongchan won the championship with 3He finished second by 90 points. The outstanding performance of Chen Yuxi and Quan Hongchan once again showed the world the outstanding strength of the Chinese diving team. Looking back on the past, those days when the antenna was adjusted for the first competition are still vivid. Now, let's take a look at the wonderful moments of the diving "dream team" in the past!
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This stark contrast, how can a "miserable" word be summed up, why some people enter the water splash so big, and some people are so small, it can't be the splash and also look at the appearance of the person who enters the water to determine the size (no little praise of our own people) hhhhh or to explain it from a scientific point of view!
In the diving competition, during the slow-motion replay, it will be found that the athlete enters the water with the palm of the hand in contact with the water, not the fingertips as is generally believed.
As the saying goes, practice brings true knowledge, and the development and maturity of "pressed water flower" technology is also improved in continuous exploration. At the beginning, the athlete's entry into the water mostly uses the technique of making the limbs sharp, if the hands enter the water first, the hands should be closed, the arms should be straightened, into a wedge-shaped shape with a sharp front and a large back; If the foot enters the water first, the foot surface should be straightened, and the toe should be inserted into the water first, although this can effectively reduce the impact force of the human body when entering the water, but the effect of "pressing the water splash" is not obvious. 
Later, some people occasionally have bad toe tensions, showing the action of hooking their feet into the water, but the splash is small ("no coincidence does not make a book" is this meaning), so everyone began to try to hook the feet into the water into the flat foot board technology, and when the hand enters the water, they also try to use both hands to make a fist, and gradually evolve into today's "water pressure" technology when the hand enters the water first, but also the top arm turns over the palm or the two hands overlap to form a face into the water. You see, sure enough, "practice is the only way to test the truth"! 
Although this set of actions originated from a small "misunderstanding", the scientific basis behind it has been proven by expert research. Experts in the "Diving "Pressurized Splash" Technology Sports Biomechanics Research" used computers to simulate the "pressurized splash" action and conducted a comprehensive analysis First, the water is simplified into an ideal fluid, and the human body that combines the hands into a sharp shape to do the action of entering the water is simplified into a wedge, and the sharp angle is determined by the oblique rise angle of the wedge (that is, the angle between the hypotenuse of the wedge and the horizontal line), the larger the oblique rise angle, the sharper the solid hitting the water; When the angle of oblique rise is reduced to 0°, the wedge body becomes a square body, that is, the water hitting action of turning the palm of the palm into a plane is commonly used in diving at present. 
According to the relevant mechanical principles, experts derive and establish the system of differential equations of motion of the collision process of wedge-shaped solid and ideal fluid, and use the computer to repeatedly simulate the liquid surface height of the wedge at different angles during the collision with water. In other words, the smaller the angle of inclination, the smaller the height of the splash, and the more successful the "pressure splash", which demonstrates the superiority of the flat palm hitting technology (the angle of inclination is 0°). Is it true that as long as you turn your shoulders and palms into the water, you will definitely be able to suppress the splash? Experts have studied and analyzed the characteristics of "the direction of the least pressure when the water is pressed, that is, the easiest to escape" When a wedge hits the water surface downward with its sharp end, the water closest to the wedge inclined plane is affected by the extrusion force perpendicular to the inclined plane, and will move in this direction. This direction is again the easiest to escape, so it continues to move in this direction, resulting in a huge splash. In other words, the faster the fall, the greater the impact, and the bigger the splash. 
Left: Sharp entry into the water; Right: Square body into the water).
When the oblique rise angle of the wedge body is reduced to 0°, that is, when the square body (top shoulder flip palm) hits the water surface, the water is affected by the extrusion force perpendicular to the horizontal plane, and moves downward, at this time, the water has no obvious direction that is easy to escape, and spreads around, because there are other water around the reverse extrusion force, so it will make a part of the water move upward along the straight wall, but the square moving downward at high speed will move the water that is close to it downward. When this velocity is greater than the speed at which the water is squeezed upwards along the wall, there will be no noticeable splash. Wouldn't it be possible to suppress the splash as long as the palm of the hand is perpendicular to the water surface when falling? Don't rush to conclusions, first of all, the premise of "vertical entry into the water" is too ideal. In real life, when a high-speed flipped square body hits the water surface, the direction of velocity is not vertically downward, but the direction of various moving speeds in the process of falling is combined, and the direction of the combined velocity usually points to the side downward. If you still keep hitting the water on a flat surface, once you hit the water surface, the square body will move in a certain angular direction, resulting in a wedge effect, and the water will escape along the side to form a splash, at this time, the athlete should rotate the wrist autonomously according to different flip directions, keeping the palm plane in the direction of the speed, so as to get the best square effect. 
Therefore, athletes should not only turn their shoulders to make the shape of their hands hit the water surface and reduce the height of the splash, but also must use a certain "kneading" technique to keep the surface formed by the palm perpendicular to the direction of the movement speed, so that the two-pronged approach can more effectively control the splash and reduce the splash to a minimum. 
In addition to watching the splash, the judges will also evaluate the overall score based on the athlete's running (i.e., board, treadmill), take-off, air and water movements. Therefore, we have to analyze it comprehensively to see "diving"!
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