You can find each term in the Fibonacci Sequence by adding the two previous terms: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, ...
And within a fairly small error, 5 mi = 8 km; 21 mi = 34 km; and so on.
Why does this work?
It's a happy coincidence, really. The Fibonacci Sequence has many marvelous properties. One of them is that, as the sequence continues, if you divide any term by the one before it the result approaches the "golden ratio," which is a little more than 1.6. And it just so happens that there are a little more than 1.6 kilometers in a mile!
Thanks to for posting this on Quora!
That's great, given that: http://www.wolframalpha.com/input/?i=area+of+venezuela+vs+size+of+venice%2C+italy
The problem is that any proposal that you come up with, I can say that my* ten word definition above defines the number it took you eleven (or more) words to define.
* Not actually mine. Attributed to G.G. Berry by Bertrand Russell, though I read it in Hofstadter.
- GorillaSoftware Engineer, 2010 - present
- University of PennsylvaniaComputer Science, 2006 - 2010
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