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| | Math Trek: Buffon's Needling Ants, Science News Online, May 13, 2000 (Site not responding. Last check: 2007-10-06) |
 | | The classic probability experiment known as Buffon's needle produces a statistical estimate of the value of pi, the ratio of a circle's circumference to its diameter. |
 | | In effect, an ant scout applies a variant of Buffon's needle theorem: The estimated area, A, of a flat surface is inversely proportional to the number of intersections, N, between two sets of lines, of total lengths S and L, randomly scattered across the surface, or A = 2SL/pN. |
 | | Moreover, the method is relatively insensitive to the shape of the area to be assessed and to the exact pattern of the tracks (as long as the tracks are not concentrated within just one region). |
| www.sciencenews.org /20000513/mathtrek.asp (952 words) |
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