The Unique Facts of Pi

**Pi has about 6.4 billion known digits which would take a person roughly 133 years to recite without stopping. The world record holder for the most memorized digits of Pi took nine hours to recite over 44,000 digits of Pi.**

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**Some scientists use the fractions , and to approximate Pi. These fractions have an error of only 0.04025%, 0.00000849% and 0.00000001056% respectively. The Babylonians, who found the first known value of Pi, used the fraction . Although Pi can be approximated by a fraction, it cannot be expressed as a fraction because it is an irrational number. In other words, Pi’s digits go on randomly for infinite.**

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**It is impossible to 'square the circle'. In other words, you can't draw a square with the same area as a circle using standard straight-edge and compass construction in a finite number of steps. The Greeks were obsessed with trying to do this. A long time ago people thought there was an illness attached to trying to 'square a cirle' called Morbus Cyclometricus.**

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**If one were to find the circumference of a circle the size of the known universe, requiring that the circumference be accurate to within the radius of one proton, only 39 decimal places of Pi would be necessary.**

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**At position 763 there are six nines in a row. This is known as the Feynman Point.**

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**Pi day is celebrated on March 14 at the Exploratorium in San Francisco (March 14 is 3/14) at 1:59 PST which is 3.14159. Pi Approximation Day is on the 22/7 - that is, July 22. For the past few years, people at Chalmers University have celebrated it.**

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**There are people who believe that Pi contains the answer to the universe, or that information is held in the digits. It has even been suggested it contains the VOICE OF GOD. In Carl Sagan's book 'Contact' the places of Pi are found to contain a message from the beings that built the universe.**

**Pi Number Counter -****
http://www.cecm.sfu.ca/pi/yapPing.html**

**Interesting Pi Facts -****
http://people.bath.ac.uk/slt20/random.html**

**Pi Facts, Songs and Jokes -****
http://www.geocities.com/SiliconValley/Pines/5945/**

Lego pic - http://classic-space.com/spaceblog/

Homer pic - http://images.google.com/images?q=pi&ie=ISO-8859-1&hl=en

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