Science Fair Project Encyclopedia
Mythical number
A mythical number is a number used and accepted as deriving from scientific investigation and/or careful selection, but whose origin is unknown and whose basis is unsubstantiated.
Famous examples include: the claim that we only use 10% of our brains, the recommendation to chew exactly 27 times, and the five second rule, which states that if food touches the ground for less than 5 seconds it is still sanitary to eat.
The origins of such numbers are akin to those of urban legends and may include (among others):
- misinterpretation of examples
- extrapolation from apparently similar fields
- especially successful pranks
- guess-estimates of public officials
- deliberate misinformation
11-30-2008 18:11:33
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details