why is there a red and black side on a table tennis bat
Table tennis racket Table tennis regulations approved by the International Table Tennis Federation (ITTF) allow different surfaces on each side of the paddle for various amounts of spin (including nullifying it) or speed.[1] For example, a player may have a spin-heavy rubber on one side of his paddle, and no spin on the other side. The player can flip the racket in play for different types of returns. To help a player distinguish between different types of rubber used by his opponent, regulations specify that one side of a paddle must be red while the other must be black, allowing a player to see what side of a paddle hits the ball mid-play. The player has the right to inspect his opponent's racquet before a match to see the type and color. Current rules state that, unless damaged in play, the paddle cannot be exchanged for another at any time during a match.[2]
Hit and run (baseball) The hit and run relies on the positioning of the defensive players in the infield. The first and third basemen normally stand near the foul lines, generally near the inside of their bases, set slightly back to allow more time to react to sharply hit balls. However, if the runner is on first, the first baseman stands closer to the base to prevent steals by means of pick-off attempts by the pitcher; consequently, such positioning produces a bigger gap between second and first basemen. The second baseman and shortstop stand on opposite sides of second base, covering the areas between first and second, and second and third, respectively. Second base itself is not directly covered, as the pitcher can field batted balls in this direction.