Yoshiaki Takai, Dr.Eng.: Clay simulator: madeira.cc.hokudai.ac.jp/RD/takai/automa.html |
Paul Prudence: Data is Nature: not not: dataisnature.com Follow him at Twitter: Mr Prudence |
Tim Tyler: - Fractal Drainage: www.fractaldrainage.com/ |
Thames water: Water counts: www.waterinschools.com/ |
Percolation: www.mathematik.com/Percolation/Percolation.html |
Juan Ulloa: Piaget y conservación: www.juanulloa.com/projects/piaget/piaget.asp |
Illuminations - NCTM: Shape balance: illuminations.nctm.org/mathlets/shapebalance/index.html |
Math Forum: Nine digits (subtraction) mathforum.org/midpow/solutions/19980601.midpow.html |
Mathematics software: Waterloo Maple: www.maplesoft.com |
Jürgen Richter-Gebert & Ulrich Kortenkamp: Interactive geometry software: Cinderella: www.cinderella.de/en/demo/ |
Alfred Carlton Gilbert (AC Gilbert) Wikipedia Alfred Carlton Gilbert Heritage Society |
A._C._Gilbert_Company |
ESR: William H. Duerig, Irving J. Lieberman, C. David Hogan, Joseph Weisbecker John Godfrey: DrNim DigiCompII |
Friends of DigiComp (Yahoo Groups) |