Penrose tilings
“ The complex geometrical designs used centuries ago in Islamic art and architecture were planned with a tiling system that was not discovered in the West until five centuries later, two physicists have claimed.”
posted on: 23 February 2007
posted on: 24 December 2006
The Poincare Conjecture
Science's 2006 Breakthrough of the year and runners up:
posted on: 11 September 2006
The Strouhal Number: swimming and flying
Flight waveform of the Common Sheathtail Bat
“ Animals swimming or flying at cruising speed use similar ratios of stroke frequency and amplitude to forward speed. For dolphins, sharks, and bony fish moving at their preferred cruising speed, the ratio of tail frequency and amplitude to forward speed is constrained to a narrow but efficient range of values.”
The Strouhal Number in Cruising Flight
Part of style.org, a series of experimental data graphics.
(published by 13pt)
posted on: 18 April 2006
Poetry and the Fibonacci sequence
On Collision Detection: "The Fib"
posted on: 11 April 2006
Fractal recursions
Very nice fractal recursions