The Colors of Billiard (Pool) Balls: Solids & Stripes > 자유게시판

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An easy way to remember these positions is with the mnemonic, 'God Bless You', with the first letter of each word being the first letter of the three colours as they are racked from left to right on the baulk line. In both one-pocket and bank pool all fifteen object balls are racked entirely at random, with the center of the apex ball placed directly over the foot spot. For most of the game, these actions are considered standard fouls and result in ball-in-hand for the opponent either on the entire table or behind the head string. The biggest complaint about using pool table shims in a garage is how it looks. Adolph Noé developed a method of peeling coal balls using nitrocellulose. When the cue ball is of the same size in other instances then why is the cue ball slightly bigger than the other balls on a coin operated table? At the exact middle of the table sits the blue ball. On the baulk line, looking up the table from the 'baulk end', the yellow ball is located where the "D" meets the line on the right, the green ball where the "D" meets the line on the left, and the brown ball in the middle of the line.

A semicircle of radius 11.5 inches, called the "D", is drawn behind this line, centred on the middle of the line. At one end of the table (the "baulk end" ) is the so-called baulk line, which is 29 inches from the baulk end cushion. Classic pool table lights are the conical lights often in groups of three or six that extend along the length of the table. Coloured ball racking positions must be remembered with care, as each time a coloured ball is potted, it is immediately replaced to its starting position, which occurs multiple times per frame, whereas reds are not returned to the table's surface after being potted. In nine-ball games where a handicap is given by one player being spotted a ball, some tournament venues enforce a rule that the spotted ball must be racked as one of the two balls in the row directly behind the 1 ball. At that time, the fourteen pocketed balls are racked with no apex ball, and the rack is so placed so that if the apex ball were in the rack, its center would rest directly over the table's foot spot. After the initial rack, the balls are played until only the cue ball and one object ball remain on the table's surface.

About 200 croquet clubs across the United States are members of the United States Croquet Association. Hutchinson, John. "The Cannon in Association Croquet". The limitation of roqueting each ball once between hoop points is, unlike in association croquet, carried over from turn to turn until the ball scores the next hoop. The current Women's Association Croquet World Champion (2023) is Debbie Lines of England. Traditionally, the 1 ball is placed on the rack’s right corner, and the 5 ball on the left corner from the racker's vantage point to maximize contrast between the corner balls and the background, as the 1 and 5 are the brightest colored balls, however, the world standardized rules do not require this. They are referred to as acetate discs. Magicians' flash paper are sheets of paper consisting of pure nitrocellulose, which burn almost instantly with a bright flash, leaving no ash or smoke. A nitrocellulose slide, nitrocellulose membrane, or nitrocellulose paper is a sticky membrane used for immobilizing nucleic acids in southern blots and northern blots. Radon tests for alpha track etches use nitrocellulose.

In the form of collodion it was also a critical component in an early photographic emulsion, the use of which revolutionized photography in the 1860s. In the 20th century it was adapted to automobile lacquer and adhesives. Many were opposed to the use of polyester for release prints for this reason, and because ultrasonic splicers are very expensive, beyond the budgets of many smaller theaters. A number of rules have developed which detail what must be done when one or both of the cue ball and fifteenth object ball are either in the rack area at the time an intragame rack is necessary, or are in such close proximity to the intragame racking area, that the physical rack cannot be used without moving the one or the other. Such rules are detailed on the following chart (note therein that the kitchen refers to the area behind the table's head string). Wood tables are more sensitive to environmental conditions.

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