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− | [[Image:frisbee-1.jpg|thumb|200px|right|A [[Wham-O]] Professional Frisbee]]
| + | Jimmy sucks at frisbee :( |
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− | '''Frisbee''' is the most common name for '''flying discs''', which are generally [[plastic]], roughly 20 to 25 centimeters (8–10 in) in [[diameter]], with a lip. They are designed to fly [[aerodynamic]]ally when thrown with [[rotation]] and can be caught by hand. The name Frisbee is a registered [[trademark]] of the [[Wham-O]] toy company, but the term is often used [[genericized trademark|generically]] to describe all versions of the flying disc.
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− | A wide range of Frisbee (flying Discs) variants are available commercially. [[Disc golf]] discs are usually smaller but denser and are tailored for particular flight profiles to increase/decrease stability and distance. When it was discovered that [[dog]]s enjoyed chasing and retrieving the slow-moving discs, special discs were designed with more pliable material that would better resist a dog's bite. [[Disc dog]] competitions, in which dogs' disc-catching skills are judged, have become quite popular as well. Ring-like discs shaped like a [[Saturn (planet)|Saturn]]'s ring, known as [[Aerobie]]s, typically fly significantly farther than any traditional flying disc. The evolution has continued with the advancement of lighting a flying disc for evening and night-time play. By using a [[Flashflight]] disc, players can extend the throw and catch playing time after the sun goes down.
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− | ==History==
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− | The modern day frisbees are developed from the "Flying-Saucer", originally invented by [[Walter Frederick Morrison]] and codeveloped and financed by [[Warren Franscioni]] in [[1948]]. However, that initial disc was largely unsuccessful. A later model made by Morrison in [[1955]] and sold as the "Pluto Platter" was bought by Wham-O on [[January 13]], [[1957]]. In the next year, Wham-O renamed the toy "Frisbee", a (probably deliberate) misspelling of the name of the [[Frisbie Pie Company]] of [[Bridgeport, Connecticut]], whose [[pie]] tins had been used by [[Yale University]] students in the campus for similar purposes.
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− | if you wish to die lick a fat mans doughnut
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− | ==Physics==
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− | The rotating flying disc has [[angular momentum]] perpendicular to the horizontal plane, stabilizing the disc's attitude <!-- "attitude" is the correct term here; pls don't change to "altitude". -elf Dec 05 --> in high-speed flight. Small ridges near the leading edge act as turbulators, reducing flow separation by forcing the airflow to become [[turbulent]] after it passes over the ridges. [[Lift (force)|Lift]] is generated in primarily the same way as a traditional asymmetric [[airfoil]], that is, by accelerating upper airflow such that a pressure difference gives rise to a lifting force.
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− | [[Richard Feynman]] in his book ''[[Surely You're Joking, Mr. Feynman!]]'' suggests that watching the wobble of a plate tossed in the [[Cornell University]] cafeteria stimulated him to develop mathematics that eventually led to his Nobel prize winning work in [[quantum electrodynamics]] [http://www.washingtonpost.com/wp-dyn/content/article/2005/11/03/AR2005110301924.html].
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− | ==See also==
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− | *[[Aerobie]]
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− | *Descriptions of [[Frisbee throws]]
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− | *[[Frisbeetarianism]]
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− | *In the animated motion picture [[The Secret of NIMH]], the main character's name was changed in post-production from "Frisby" to "Brisby" to avoid potential trademark infringements.
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− | ==Further reading==
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− | *''Frisbee, A Practitioner's Manual and Definitive Treatise'' Stancil E.D. Johnson, M.D. Workman Publishing Company, New York (July, 1975) ISBN 0-911104-53-4
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− | *''The Official Frisbee Handbook'' Goldy Norton, Bantam Books, Toronto/New York/London (July, 1972) no ISBN
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− | *''Frisbee Players' Handbook'' Mark Danna, Dan Poynter, Parachuting Publications, Santa Barbara, California (1978) ISBN 0-015516-19-5
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− | *''Frisbee Sports & Games'' Charles Tips, Dan Roddick, Celestial Arts, Millbrae, California (March 1979) ISBN 0-89087-233-3
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− | *''Frisbee by the Masters'' Charles Tips, Celestial Arts, Millbrae, California (March 1977) ISBN 0-89087-142-6
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− | ==External links==
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− | *[http://inventors.about.com/library/weekly/aa980218.htm Frisbee, about.com]
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− | *[http://www.frisbeedisc.com/ Wham-O Frisbee disc website]
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− | *[http://www.ukultimate.com/ UK Ultimate Association]
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− | *[http://www2.upa.org/index.php/ Ultimate Players Association]
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− | *[http://www.frisbeecollective.com frisbeecollective.com]
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− | [[Category:Frisbee]]
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− | [[Category:National Toy Hall of Fame]]
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− | [[Category: Toys]]
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− | [[Category:Yale University]]
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− | [[cs:Frisbee]]
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− | [[da:Frisbee]]
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− | [[de:Frisbee]]
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− | [[eo:Flugdisko]]
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− | [[fr:Frisbee]]
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− | [[it:Frisbee]]
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− | [[nl:Frisbee]]
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− | [[ja:フライングディスク]]
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− | [[no:Frisbee]]
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− | [[pl:Frisbee]]
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− | [[sk:Frisbee]]
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− | [[sv:Frisbee]]
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− | [[es:Frisbee]]
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