American football, referred to as football in the United States and Canada and also known as gridiron,[nb 1] is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, which is the team controlling the oval-shaped football, attempts to advance down the field by running with or passing the ball, while the defense, which is the team without control of the ball, aims to stop the offense’s advance and aims to take control of the ball for themselves. The offense must advance at least ten yards in four downs, or plays, and otherwise they turn over the football to the defense; if the offense succeeds in advancing ten yards or more, they are given a new set of four downs. Points are primarily scored by advancing the ball into the opposing team’s end zone for a touchdown or kicking the ball through the opponent’s goalposts for a field goal. The team with the most points at the end of a game wins.
College football is American football played by teams of student athletes fielded by American universities, colleges, and military academies, or Canadian football played by teams of student athletes fielded by Canadian universities. It was through college football play that American football rules first gained popularity in the United States.
1.Table Type Hardness Abrasion limit Moisture content Reduction ratio Main use Gyratory crushers Soft to very hard Abrasive Dry to slightly wet, not sticky 4/1 to 7/1 Heavy mining, Quarried materials Cone crushers Medium hard to very hard Abrasive Dry or wet, not sticky 3/1 to 5/1 Quarried materials, Sand & gravel 2.Definitions Gyratory crusher A gyratory crusher is similar in basic concept to a jaw crusher, consisting of a concave surface and a conical head; both surfaces are typically lined with manganese steel surfaces. The inner cone has a slight circular movement, but does not rotate; the movement is generated by an eccentricarrangement. As with the jaw crusher, material travels downward between the two surfaces being progressively crushed until it is small enough to fall out through the gap between the two surfaces. A gyratory crusher is one of the main types of primary crushers in a mine or ore....... READ
1.Definitions Gothic fiction, which is largely known by the subgenre of Gothic horror, is a genre or mode of literature and film that combines fiction and horror, death, and at times romance. Its origin is attributed to English author Horace Walpole, with his 1764 novel The Castle of Otranto, subtitled (in its second edition) "A Gothic Story". The effect of Gothic fiction feeds on a pleasing sort of terror, an extension of Romantic literary pleasures that were relatively new at the time of Walpole's novel. It originated in England in the second half of the 18th century where, following Walpole, it was further developed by Clara Reeve, Ann Radcliffe, William Thomas Beckford and Matthew Lewis. The genre had much success in the 19th century, as witnessed in prose by Mary Shelley's Frankenstein and the works of Edgar Allan Poe as well as Charles Dickens with his novella, A Christmas Carol, and in poetry in the work of Samuel Taylor Coleridge, and Lord Byron. Another well known novel in this genre, dating.......READ