Ten-pin bowling regulations, identification letters and numbers, and general wear from normal use. For much of the history of bowling, bowling balls were made using a three-piece construction method. Starting in the mid-1990s, however, most manufacturers switched to a two-piece method. In response to these innovative ball designs, the American Bowling Congress placed further restrictions on the technical characteristics of the ball such as the radius of gyration and hooking potential. A game of bowling consists of ten frames. In each frame, the bowler will have two chances to knock down as many pins as possible with their bowling ball. In games
Ten-pin bowling ten-pin magazines and news services are the international and world-renowned "Bowling Digital News", the international "Bowlers Journal Online" and the "International Bowling Industry". Specific American magazines of note are the "Bowling This Month" magazine and the "Bowling Digest". Additionally, other than books written by bowling instructors on the coaching and training of the sport, books on the humorous and historical side of ten-pin bowling have become extremely popular. Some of these include "A Funnier Approach", "The Funniest Approach", "Bowled Over", "The New Bowling Trivia Book", "Two For Stew" and "The Tour Would Be Great". Ten-pin bowling has been referenced in