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The tennis racket theorem or intermediate axis theorem, is a kinetic phenomenon of classical mechanics which describes the movement of a rigid body with three distinct principal moments of inertia. It has also been dubbed the Dzhanibekov effect , after Soviet cosmonaut Vladimir Dzhanibekov , who noticed one of the theorem's logical consequences ...
Tennis is a racket sport that is played either individually against a single opponent or between two teams of two players each . Each player uses a tennis racket strung with a cord to strike a hollow rubber ball covered with felt over or around a net and into the opponent's court. The object is to manoeuvre the ball in such a way that the ...
In tennis, a set consists of a sequence of games played with alternating service and return roles. There are two types of set formats that require different types of scoring. [1] An advantage set is played until a player or team has won at least six games and that player or team has a two-game lead over their opponent(s). The set continues ...
The ITF specifies that a tennis ball must have a diameter of 6.54–6.86 cm (2.57–2.70 in) and a weight of 56.0–59.4g. Yellow and white are the only approved colors at tournament level. [3] [141] Tennis bubble: Indoor tennis facility consisting of a domed structure which is supported by air pressure generated by blowers inside the structure.
When three players are available, modified rules can accommodate the mismatch so that the single player does not have to be significantly better than the doubles team. The only major rule variation between Canadian doubles and traditional doubles tennis is that the team of two players can only hit the ball within the singles lines, whilst the ...
Players use different strategies while playing tennis to enhance their own strengths and exploit their opponent's weaknesses in order to gain the advantage and win ...
A smash in tennis is a shot that is hit above the hitter's head with a serve-like motion. It is also referred to as an overhead. It is also referred to as an overhead. [ 1 ] [ 2 ] [ 3 ] A smash can usually be hit with a high amount of force and is often a shot that ends the point .
For example, circumduction occurs when spinning the arm when performing a serve in tennis or bowling a cricket ball. [25] Reduction is a motion returning a bone to its original state, [26] such as a shoulder reduction following shoulder dislocation, or reduction of a hernia.