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Tornado Essay

  • Submitted by: ma3rff
  • on March 2, 2013
  • Category: English
  • Length: 3,558 words

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Below is an essay on "Tornado" from Anti Essays, your source for research papers, essays, and term paper examples.

A report about:







Tornado

































Content :





Tornado

Etymology

Definitions

Funnel cloud

Size and shape

Supercell relationship

Waterspout

Similar circulations















Etymology
The word tornado is an altered form of the Spanish word tronada, which means "thunderstorm". This in turn was taken from the Latin tonare, meaning "to thunder". It most likely reached its present form through a combination of the Spanish tronada and tornar ("to turn"); however, this may be a folk etymology.[10][11] A tornado is also commonly referred to as a "twister", and is also sometimes referred to by the old-fashioned colloquial term cyclone.[12] The term "cyclone" is used as a synonym for "tornado" in the often-aired 1939 film, The Wizard of Oz. The term "twister" is also used in that film, along with being the title of the 1996 tornado-related film Twister.
Definitions
[pic]
[pic]
A tornado near Seymour, Texas
A tornado is "a violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud, and often (but not always) visible as a funnel cloud".[13] For a vortex to be classified as a tornado, it must be in contact with both the ground and the cloud base. Scientists have not yet created a complete definition of the word; for example, there is disagreement as to whether separate touchdowns of the same funnel constitute separate tornadoes.[3] Tornado refers to the vortex of















Funnel cloud

Main article: Funnel cloud

[pic]

[pic]

This tornado has no funnel cloud; however, the rotating dust cloud indicates that strong winds are occurring at the surface, and thus it is a true tornado.

A tornado is not necessarily visible; however, the intense low pressure which causes the high wind speeds (as described by Bernoulli's principle) and rapid rotation (due to...

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