• 목록
• 답변
• 글쓰기
• 게시판 리스트 옵션
  • 수정
  • 삭제

The process uses a mixture of nitric acid and sulfuric acid to convert cellulose into nitrocellulose. In Stephen King's 1977 novel The Shining, the main character, Jack Torrance, uses a croquet mallet to chase and attack the other characters. Croquet is popular pastime of Leo Tolstoy's Anna Karenina characters. Oxford University Croquet Club. The next shot must move both the player's ball and the roqueted ball, and it is the "croquet" stroke that gives the game its name. Play then continues with the cue ball shot from where it rested and the fifteenth ball from where it rested prior to racking. Unlike traditional racks, template racks are left on the table during the break shot and removed at the players' earliest convenience. A modern variation, called a template rack, is made from a thin material (usually 0.14 mm or less) that contains precision cut-outs to hold the balls in place. For this reason, template racks are almost never used for games where it is common to slow-break (i.e. not create a large spread of balls) since it is significantly more likely that the rack will interfere with slow-rolling balls. Triangular racks are used for eight-ball, straight pool, one-pocket, bank pool, snooker and many other games.

In the initial rack in straight pool, fifteen balls are racked in a triangular rack, with the center of the apex ball placed over the foot spot. Because the game is played to a number of points normally far in excess of the fifteen points total available in the initial rack (in tournament play, one-hundred fifty points), multiple intragame racks are necessary. After the initial rack, the balls are played until only the cue ball and one object ball remain on the table's surface. They are numbered 1-15. Numbers 1-8 are solid colored balls, meaning the whole ball is one color except for the where it is numbered. 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. BCA Rules Committee (1992), what is billiards p. BCA Rules Committee (November 1992). Billiards: The Official Rules and Records Book. The Times. 23 November 1968. p. 10. Archived from the original on 5 May 2016. Retrieved 27 November 2019 - via Google News.

For this reason, immersing burning film in water may not extinguish it, and could actually increase the amount of smoke produced. 1A. ProQuest. This article about the 1978 film fire at the National Archives warehouse in Suitland, Maryland, describes some of the toxic gases emitted by burning nitrate film. In this article I would like to raise such an elegant, consistent and in some measure elegant theme, as billiards. The billiards ball is around 61.5 mm in diameter. 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. It is played using a cue stick, one white ball (the cue ball), fifteen red balls and six colours: a yellow (worth two points), green (three points), brown (four points), blue (five points), pink (six points) and black ball (seven points). Nitrate dominated the market for professional-use 35 mm motion picture film from the industry's origins to the early 1950s. While cellulose acetate-based safety film, notably cellulose diacetate and cellulose acetate propionate, was produced in the gauge for small-scale use in niche applications (such as printing advertisements and other short films to enable them to be sent through the mails without the need for fire safety precautions), the early generations of safety film base had two major disadvantages relative to nitrate: it was much more expensive to manufacture, and considerably less durable in repeated projection.

So, depending on the rules of the particular game, two common outcomes are practiced after a table scratch. The rules also vary depending on whether the cue ball or fifteenth ball are resting on the table's head spot. Nitrocellulose (also known as cellulose nitrate, flash paper, flash cotton, guncotton, pyroxylin and flash string, depending on form) is a highly flammable compound formed by nitrating cellulose through exposure to a mixture of nitric acid and sulfuric acid. Unwashed nitrocellulose (sometimes called pyrocellulose) may spontaneously ignite and explode at room temperature, as the evaporation of water results in the concentration of unreacted acid. Rack may also be used as a verb to describe the act of setting billiard balls in their starting positions (e.g. "to rack the balls"), or as a noun to describe a set of balls that are in their starting positions (e.g. "a rack of balls", more often called a pack or a pyramid in British English). This may seem a little over your head at first.