Difference between revisions of "AY Honors/Ultimate Disc/Answer Key"
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[[Image:Frisbee Catch 02- Fcb981.jpg|right|thumb|300px|A player catching a flying disc.]] | [[Image:Frisbee Catch 02- Fcb981.jpg|right|thumb|300px|A player catching a flying disc.]] | ||
'''Flying discs''' (commonly called '''Frisbees''') are disc-shaped objects, which are generally [[plastic]] and roughly 20 to 25 centimeters (8–10 inches) in [[diameter]], with a lip. The shape of the disc, an [[airfoil]] in cross-section, allows it to [[flight|fly]] by generating [[lift (force)|lift]] as it moves through the air while rotating. The name Frisbee is a registered [[trademark]] of the [[Wham-O]] toy company, but is often used [[genericized trademark|generically]] to describe all flying discs. | '''Flying discs''' (commonly called '''Frisbees''') are disc-shaped objects, which are generally [[plastic]] and roughly 20 to 25 centimeters (8–10 inches) in [[diameter]], with a lip. The shape of the disc, an [[airfoil]] in cross-section, allows it to [[flight|fly]] by generating [[lift (force)|lift]] as it moves through the air while rotating. The name Frisbee is a registered [[trademark]] of the [[Wham-O]] toy company, but is often used [[genericized trademark|generically]] to describe all flying discs. | ||
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YOU GUYS ARE FUCKING ASSHOLES! | YOU GUYS ARE FUCKING ASSHOLES! | ||
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==History== | ==History== | ||
[[Image:Cool pics 004.jpg|right|thumb|240px|A tool trying to catch and eat an alien form of pizza; [[Mackinaw City, Michigan]].]] | [[Image:Cool pics 004.jpg|right|thumb|240px|A tool trying to catch and eat an alien form of pizza; [[Mackinaw City, Michigan]].]] | ||
The [[clay target]] used in [[trapshooting]], almost identical to a flying disc in shape, was designed in the 19th century. The modern day era of flying discs began with the concept of designing and selling a commercially-produced flying disc. | The [[clay target]] used in [[trapshooting]], almost identical to a flying disc in shape, was designed in the 19th century. The modern day era of flying discs began with the concept of designing and selling a commercially-produced flying disc. | ||
| − | The | + | The FUCKING ASSHOLES ARE TOTALLY FUCKING ASSHOLES! |
In 1955, Morrison produced a new plastic flying disc called the '''Pluto Platter''', to cash in on the growing popularity of [[UFO]]s with the American public. The Pluto Platter became the design basis for later flying discs. In [[1957]], [[Wham-O]] began production of more discs (then still marketed as Pluto Platters). The next year, Morrison was awarded US Design Patent 183,626 for his flying disc. | In 1955, Morrison produced a new plastic flying disc called the '''Pluto Platter''', to cash in on the growing popularity of [[UFO]]s with the American public. The Pluto Platter became the design basis for later flying discs. In [[1957]], [[Wham-O]] began production of more discs (then still marketed as Pluto Platters). The next year, Morrison was awarded US Design Patent 183,626 for his flying disc. | ||
| − | In 1957, | + | In 1957, SOME FUCKING ASSHOLES TRIED TO BE TOTAL FUCKING ASSHOLES. FUCK THAT....THAT'S SHIT</ref> |
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==Flying disc games== | ==Flying disc games== | ||
Revision as of 08:09, 9 August 2008
Flying discs (commonly called Frisbees) are disc-shaped objects, which are generally plastic and roughly 20 to 25 centimeters (8–10 inches) in diameter, with a lip. The shape of the disc, an airfoil in cross-section, allows it to fly by generating lift as it moves through the air while rotating. The name Frisbee is a registered trademark of the Wham-O toy company, but is often used generically to describe all flying discs.
YOU GUYS ARE FUCKING ASSHOLES!
History
The clay target used in trapshooting, almost identical to a flying disc in shape, was designed in the 19th century. The modern day era of flying discs began with the concept of designing and selling a commercially-produced flying disc.
The FUCKING ASSHOLES ARE TOTALLY FUCKING ASSHOLES!
In 1955, Morrison produced a new plastic flying disc called the Pluto Platter, to cash in on the growing popularity of UFOs with the American public. The Pluto Platter became the design basis for later flying discs. In 1957, Wham-O began production of more discs (then still marketed as Pluto Platters). The next year, Morrison was awarded US Design Patent 183,626 for his flying disc.
In 1957, SOME FUCKING ASSHOLES TRIED TO BE TOTAL FUCKING ASSHOLES. FUCK THAT....THAT'S SHIT</ref>
MEOW
Flying disc games
Template:Mergeto Template:Main Template:MultiCol
- Fricket, also known as disc cricket, cups, Suzy sticks or crispy wickets
- Friskee
- Goaltimate
- Guts
Physics
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. 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.
The rotating flying disc has a vertical angular momentum vector, stabilizing its attitude gyroscopically. Depending on the cross-sectional shape of the airfoil, the amount of lift generated by the front and back parts of the disc may be unequal. If the disc were not spinning, this would tend to make it pitch. When the disc is spinning, however, such a torque would cause it to precess about the roll axis, causing its trajectory to curve to the left or the right. Most discs are designed to be aerodynamically stable, so that this roll is self-correcting for a fairly broad range of velocities and rates of spin. However, many disc golf discs are intentionally designed to be unstable. Higher rates of spin lead to better stability, and for a given rate of spin, there is generally a range of velocities that are stable.
Even a slight deformation in a disc, called a "Taco," as extreme cases look like a taco shell, can cause adverse affects when throwing long range. It can be observed by holding the disc horizontally at eye level and looking at the rim while slowly rotating the disc.
See also
References
Further reading
- Morrison, Walter Frederic, and Kennedy, Phil; Flat Flip Flies Straight! True Origins of the Frisbee, Wormhole Publishers, Wethersfield, CT (June 2006); ISBN 978-0-9774517-4-6
- Stancil. E. D., and Johnson, M. D.; Frisbee, A Practitioner's Manual and Definitive Treatise, Workman Publishing Company, New York (July, 1975); ISBN 978-0-911104-53-0
- Norton, Gary; The Official Frisbee Handbook, Bantam Books, Toronto/New York/London (July, 1972); no ISBN
- Danna, Mark, and Poynter, Dan; Frisbee Players' Handbook, Parachuting Publications, Santa Barbara, California (1978); ISBN 0915516195
- Tips, Charles, and Roddick, Dan; Frisbee Sports & Games, Celestial Arts, Millbrae, California (March 1979); ISBN 978-0-89087-233-8
- Tips, Charles; Frisbee by the Masters, Celestial Arts, Millbrae, California (March 1977); ISBN 978-0-89087-142-3
- Lorenz, Ralph; Spinning Flight: Dynamics of Frisbees, Boomerangs, Samaras and Skipping Stones, Copernicus, New York (September 2006); ISBN 978-0-387-30779-4
External links
- World Flying Disc Federation – international sports governing body for flying disc games
- Official Frisbee website by Wham-O, manufacturer of Frisbee brand flying discs
- ffindr! the frisbee tournament portal
- Acrobatic Frisbee Show
- Hard Disc Frisbee Forlì A.S.D. (frisbee freestyle and more!)
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