The knuckleball, however, is not exclusive to just a soccer ball or a baseball. A study by students at École Polytechnique’s Hydrodynamics Laboratory in France found that almost any ball, be it a tiny plastic bead or a 7 kg steel ball, will move similarly to a knuckleball seen in sports if dropped into a tank of water.
Knuckleball machine delivers soccer science. by Institute of Physics. Wind tunnel and high-speed camera data help researchers to explore the zigzag secrets of one of football's most unpredictable ...
A "knuckleball" in soccer refers to a ball kicked at very low spin, which results in a zigzag trajectory. Along its straight path, the ball deviates laterally by roughly the diameter of a ball (0...
In many sports, players use aerodynamic effects to lure opponents and score. For example in soccer, a free kick may get around the defensive wall thanks to a side spin . Among the different paths , one of the most intriguing paths is probably the zigzagging knuckleball.
By putting spin on the ball, a pitcher or kicker can exert some control over its lift. But since a knuckleball has very little spin, it behaves more erratically.
More Knuckleball Physics Soccer images
The only physics/science behind knuckleball goals in the game of football is simply the use of dynamic force in curvilinear motion and direction to dodge the goalkeeper at the knuckles level so that the pushback force is not equal and opposite to stop it.
Since Ronaldo undoubtedly knuckles a soccer ball, the process needed another ingredient. That extra ingredient was the drag crisis. "But you need to kick the ball at a velocity close to that of the drag crisis and to do so with no spin to observe the knuckle effect," Cohen said. The make-up of the soccer ball also influences the extent of knuckling.
Knuckleballs are mostly associated with baseball in the United States, but this devilishly unpredictable ball motion also shows up in soccer, cricket, and volleyball.
The "knuckleball" is when the ball does not spin as it flies through the air. Spin is what gives a ball stability as it at moves, and without it your shot will snake through the air, changing directions suddenly and making it nearly...