Archive for the ‘American football’ Category
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Advancing the ball in American football
Tuesday, May 4th, 2010
A quarterback searching for opportunity to throw a pass. Advancing the ball in American football resembles the six-tackle rule and the play-the-ball in rugby league football. The team that takes possession of the ball (the offense) has four attempts, called downs, to advance the ball 10 yards towards their opponent’s (the defense‘s) end zone. When [...]
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Game duration in American football
Monday, January 18th, 2010
A line of scrimmage on the 48-yard line. The offense is on the left. A standard football game consists of four 15-minute (typically 12 minutes in high school football) periods (called quarters), with an intermission (called halftime) after the second quarter. The clock stops after certain plays; therefore, a game can last considerably longer (often [...]
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Field and players in American football
Sunday, August 23rd, 2009
The numbers on the field indicate the number of yards to the nearest end zone. American football is played on a rectangular field 120 yards (110 metres) long by 53 1/3 yards (49 metres) wide. The longer boundary lines are sidelines, while the shorter boundary lines are end lines. Near each end of the field [...]
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Popularity of the American football
Sunday, April 5th, 2009
Since the 1960s, football has outranked baseball as the most popular spectator sport in the United States [2]. The 32-team National Football League (NFL) is the most popular and only major professional American football league. Its championship game, the Super Bowl, is watched by nearly half of U.S. television households, and is also televised in [...]
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American football
Tuesday, March 17th, 2009
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