Fire

Fire is the rapid oxidation of a material in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. Slower oxidative processes like rusting or digestion are not included by this definition.

Fire is hot because conversion of the weak double bond in molecular oxygen, O₂, to the stronger bonds in the combustion products carbon dioxide and water releases energy (418 kJ per 32 g of O₂); the bond energies of the fuel play only a minor role here. At a certain point in the combustion reaction, called the ignition point, flames are produced. The flame is the visible portion of the fire. Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen. If hot enough, the gases may become ionized to produce plasma. Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity will be different.

Fire in its most common form can result in conflagration, which has the potential to cause physical damage through burning. Fire is an important process that affects ecological systems around the globe. The positive effects of fire include stimulating growth and maintaining various ecological systems. Fire has been used by humans for cooking, generating heat, light, signaling, and propulsion purposes. The negative effects of fire include hazard to life and property, atmospheric pollution, and water contamination. If fire removes protective vegetation, heavy rainfall may lead to an increase in soil erosion by water. Also, when vegetation is burned, the nitrogen it contains is released into the atmosphere, unlike elements such as potassium and phosphorus which remain in the ash and are quickly recycled into the soil. This loss of nitrogen caused by a fire produces a long-term reduction in the fertility of the soil, which only slowly recovers as nitrogen is "fixed" from the atmosphere by lightning and by leguminous plants such as clover.

Fire!!

Fire!! was an African-American literary magazine published in New York City in 1926 during the Harlem Renaissance. The publication was started by Wallace Thurman, Zora Neale Hurston, Aaron Douglas, John P. Davis, Richard Bruce Nugent, Gwendolyn Bennett, Lewis Grandison Alexander, Countee Cullen, and Langston Hughes. After it published one issue, its quarters burned down, and the magazine ended.

History

Fire!! was conceived to express the African-American experience during the Harlem Renaissance in a modern and realistic fashion, using literature as a vehicle of enlightenment. The magazine's founders wanted to express the changing attitudes of younger African Americans. In Fire!! they explored edgy issues in the Black community, such as homosexuality, bisexuality, interracial relationships, promiscuity, prostitution, and color prejudice.

Langston Hughes wrote that the name was intended to symbolize their goal "to burn up a lot of the old, dead conventional Negro-white ideas of the past ... into a realization of the existence of the younger Negro writers and artists, and provide us with an outlet for publication not available in the limited pages of the small Negro magazines then existing.". The magazine's headquarters burned to the ground shortly after it published its first issue. It ended operations.

Fire (disambiguation)

Fire is the rapid oxidation of a material in the chemical process of combustion.

Fire may also refer to:

Music

Groups

Albums

Songs

Stunt (gridiron football)

A stunt in American football and Canadian football, sometimes called a twist, is a planned maneuver by a pair of players of the defensive team by which they exchange roles to better slip past blockers of the offensive team at the beginning of a play.

The purpose of a stunt is to confuse opposing blockers, which is an aid to the defense in rushing an opposing forward pass or kick. The main weakness of a stunt is that it is more vulnerable than average to running plays by the opposing team. In most cases, the defense will not use a play incorporating stunting if it expects a running play from the offense.

There are two main types of stunts. In one, a line player, who would otherwise try to charge forward, instead drops back, and a nearby linebacker or defensive back charges forward instead. In the other, which is known as cross-rushing, line players, instead of charging straight ahead, cross paths. One of them may follow a looping path that goes behind the other before moving forward (in which case the stunt is called a "loop"), or one may wait for the other to penetrate slightly first, and then cross behind, their paths angling across each other. In some variants, a rushing player will run around more than one rushing teammate.

Stunt (sport)

STUNT is a new and growing sport that is very similar to Cheerleading in terms of athletic skills. In spring 2011, USA Cheer announced that 21 universities are now committed to this sport. STUNT requires high athletic skills and its competition format and scoring systems are unique. The maximum number of players on each team can reach 30 athletes. STUNT Athletes are engaged from multiple backgrounds, including traditional cheerleading schools, “All Stars” who are non-school cheerleaders and acrobatics and/or gymnastics athletes. STUNT is being considered for NCAA Emerging Sport status and has been designed to meet Title IX's requirements for intercollegiate sports.

2013-2014 Season

In 2014, more than 160 girls from 11 high school schools from New York's Public School Athletic League (PSAL), competed in NY's first STUNT competition. The competition was held at John Bowne High School in Flushing, Queens.

The four Quarters of Play, Competition Formats and Routines

The four quarters of play