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Dynamical billiards may also be studied on non-Euclidean geometries; indeed, the first studies of billiards established their ergodic motion on surfaces of constant negative curvature. The study of billiards which are kept out of a region, rather than being kept in a region, is known as outer billiard theory.
This model can be used to simulate Boolean circuits in which the wires of the circuit correspond to paths on which one of the balls may travel, the signal on a wire is encoded by the presence or absence of a ball on that path, and the gates of the circuit are simulated by collisions of balls at points where their paths cross.
Carom balls. Four-ball needs an additional object ball.. In the realm of carom billiards games, three balls are used to play most games on pocketless billiards tables.Carom balls are not numbered, and are 61–61.5 mm (approximately 2 + 13 ⁄ 32 in) in diameter, and a weight ranging between 205 and 220 grams (7.2 and 7.8 oz) with a typical weight of 210 g (7.5 oz). [10]
A billiard-ball computer consists of a system of synchronized particles (the billiard balls) moving in tracks and guided by a fixed set of obstacles. When the particles collide with each other or with the obstacles, they undergo an elastic collision much as real billiard balls would do. The input to the computer is encoded using the presence or ...
A billiard-ball computer is a type of mechanical computer that uses the motion of spherical billiard balls to perform computations. In this model, the wires of a Boolean circuit are represented by paths for the balls to travel on, the presence or absence of a ball on a path encodes the signal on that wire, and gates are simulated by collisions ...
Billiard (number), the long-scale name used in most European languages for the number 10 15 (called quadrillion in the short scale generally used in English) Dynamical billiards , the mathematical theory of particle trajectories within a closed reflective boundary
Top: original billiard ball trajectory. Middle: the billiard ball emerges from the future, and delivers its past self a strike that averts the past ball from entering the time machine. Bottom: The billiard ball never enters the time machine, giving rise to the paradox, putting into question how its older self could ever emerge from the time ...
Snooker balls are smaller than American-style pool balls with a diameter of 52.5 mm (2 + 1 ⁄ 16 in), and come in sets of 22 (15 reds, 6 "colours", and a cue ball). English billiard balls are the same size as snooker balls and come in sets of three balls (two cue balls and a red object ball). Other games, such as bumper pool, have custom ball ...
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