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The life (or history) of Pi

The life (or history) of Pi. Tim Rundle & Mollie Safran. History . -Babylonians thought Pi was 3 -The Rhind Papyrus from Egypt had pi as 3.1605 -Archimedes first calculated for pi -The greek letter π started being used in the 1700s. How did these people discover Pi?.

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The life (or history) of Pi

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  1. The life (or history) of Pi Tim Rundle & Mollie Safran

  2. History -Babylonians thought Pi was 3 -The Rhind Papyrus from Egypt had pi as 3.1605 -Archimedes first calculated for pi -The greek letter π started being used in the 1700s

  3. How did these people discover Pi? -They were observing what they saw in the real world -All circles had a circumference that was a little more than 3 times the diameter -In Cyberchase, the kids discover this by observing circles they find http://www.youtube.com/watch?v=61snPFqYazc

  4. Archimedes and Pi -Archimedes was the first to try and compute the actual value of pi -He bracketed pi with polygons, meaning he used a shape inside and outside a circle to try and estimate the dimensions of the circle

  5. Pi’s Impact -made it possible to find the dimensions of any circle -used in equations for circumference, volume, area, surface area of circles and spheres -crucial for development of society and our understanding of mathematics

  6. How pi is useful! -Egyptians used pi to build the pyramids -Used by Hebrews to calculate the size of a grain silo for farming -Today it is often used by engineers by machining parts for aircraft -Used to calculate the amount of fuel needed for a plane’s trip

  7. FUN WITH PI Pi Song: http://mathstory.com/mathsongs/pisong.aspx#.UxKsH5FA-To Calculate Pi App: https://itunes.apple.com/us/app/calculate-pi/id385916387?mt=8 Buying Pi Gear: http://www.angio.net/pi/pistuff.html -Some people use songs to memorize pi” “ ‘Pie, I want a whole allotment of pretty tasty pie’. The first word has three letters, the second word has one letter and so on. The sentence corresponds to the first 10 digits of pi: 3.141592653 (although one must remember we’re talking pie, not pi). “ (Real Life of Pi)

  8. Bibliography "Pi Day: History of Pi | Exploratorium." Pi Day: History of Pi | Exploratorium. N.p., n.d. Web. 25 Feb. 2014. "The Real Life of Pi." Royal Institution of Australia. N.p., n.d. Web. 25 Feb. 2014. "Math Forum - Ask Dr. Math." Math Forum - Ask Dr. Math. The Math Forum, 04 Jan. 1997. Web. 28 Feb. 2014. Weisstein, Eric W. "Pi Formulas." Pi Formulas. Wolfram MathWorld, n.d. Web. 28 Feb. 2014.

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