Thursday, December 16, 2010

A little holiday pi

Though Pi Day doesn't fall for another three months (March 14 - and I don't recognize July 22), I've coincidentally run across several pieces of the pi in the last day or so. First there was this strange CGI music video that comes as close as any attempt I've seen to fit the digits of pi into some kind of rhythm:



It reminds me of the fascinating Tom Dukich and his experiment in sonifying mathematical constants, including pi.


'Tis the season for pi related stocking stuffers. A pizza cutter:




A shower curtain (to 4600 digits!):



And of course a necklace:



And this fun list of 50 pi facts at Random Facts:

14. If the circumference of the earth were calculated using π rounded to only the ninth decimal place, an error of no more than one quarter of an inch in 25,000 miles would result.

21. ... the number 360 is at the 359th digit position of pi.

29. The first million decimal places of pi consist of 99,959 zeros, 99,758 1s, 100,026 2s, 100,229 3s, 100,230 4s, 100,359 5s, 99,548 6s, 99,800 7s, 99,985 8s, and 100,106 9s.

40. There are no occurrences of the sequence 123456 in the first million digits of pi — but of the eight 12345s that do occur, three are followed by another 5. The sequence 012345 occurs twice and, in both cases, it is followed by another 5.

41. Some scholars claim that humans are programmed to find patterns in the world because it’s the only way we can give meaning to the world and ourselves. Hence, the obsessive search to find patterns in π.

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