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Commercial aircraft are aerodynamically stable, so that a small turbulent nudge (possibly butterfly-related) won’t push the plane out of a level flightpath. Modern fighter jets achieve great manoeuvrability by virtue of being aerodynamically unstable - the slightest nudge is enough to drastically alter their flightpath. Chalk in small cubes is applied uniformly to the cue tip permitting the players to strike the cue ball off centre on purpose in order to impart a spinning motion, called "side" in Great Britain and "English" in the United States. At the centre of Chaos Theory is the fascinating idea that order and chaos are not always diametrically opposed. How can order on a small scale produce chaos on a larger scale? Explainer: what is Chaos Theory? Understanding the theory of lock picking is only a small part of being able to successfully pick locks. You'll probably end up deciding that the small Peterson hook works best, but experiment with all the picks. The small end of the cue, with which the ball is struck, is fitted with a plastic, fibre, or ivory reinforcement to which is cemented a leather cue tip. When the last ball is pocketed, the game is ended.

The game of English billiards is most popular in Britain and the former empire countries. The game of carom billiards is still played primarily in France and other European countries and to a lesser degree in the United States and has many players in Japan, Indonesia, the Philippines, Taiwan, and South Korea and in Central America, South America, Africa, and the Middle East. Nature exhibits not simply a higher degree but an altogether different level of complexity. In play, the object is to stroke the cue ball so that it hits the two object balls in succession, scoring a carom, or billiard, which counts one point. Carom, or French, billiards is played with three balls on a table that has no pockets. There are three ways of scoring: (1) the losing hazard, or loser, is a stroke in which the striker’s cue ball is pocketed after contact with another ball; (2) the winning hazard, or pot, is a stroke in which a ball other than the striker’s cue ball is pocketed after contact with another ball; (3) the cannon, or carom, is a scoring sequence in which the striker’s cue ball contacts the two other balls successively or simultaneously. What happens after the ball bounces off the elliptical table a second time?

Carom billiards is played on a table usually 5 by 10 feet (1.5 by 3 m) or 4.5 by 9 feet (1.4 by 2.7 m). The game of English billiards is played on a relatively large table, usually 6 feet 1.5 inches by 12 feet (1.9 by 3.7 m); it is played with three balls as in carom-a plain white, a white with a spot, and a red. He then alternately pockets red and coloured balls. The player must first pocket a red ball and then try to pocket any colour he may choose, scoring the value of the ball that he has pocketed. It may be inferred that it developed from a variety of games in which propelling a ball was a main feature. The other principal games are played on tables that have six pockets, one at each corner and one in each of the long sides; these games include English billiards, played with three balls; snooker, played with 21 balls and a cue ball; and pocket billiards, or pool, played with 15 balls and a cue ball. It is worth noting that the laws of physics that determine how the billiard balls move are precise and unambiguous: they allow no room for randomness.

The billiard balls, formerly made of ivory or Belgian clay, are now usually plastic; they each measure from about 21/4 to 23/8 inches (5.7 to 6 cm) in diameter, the larger balls being used in carom billiards. All billiards games require the basic equipment of a table, cue sticks, and balls. The traditional mahogany billiards table is still in use, but tables are now generally made of other woods and synthetic materials. The Y1 keyway is one of the toughest you are likely to encounter in real lock installations in the US. In a lock with six pin stacks with a uniform chance of a pin setting at either shear line, the probability of a picked lock actually opening is only 1/64. Picking techniques for these locks involve the use of special torque tools designed to put torque on only one of the two concentric plugs. Many experienced locksmiths and expert lock pickers prefer "home made" tools to the commercial selections, especially for picking unusual and high security locks. While some of these features can be defeated with conventional picking tools and are covered here, picking high security locks generally requires specialized tools and techniques (often designed for a specific brand or model of lock) and are beyond our scope here.

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