Coadan:Number-line.gif2006-03-28 08:37 MathsIsFun 591×52×4 (2500 bytes) Author: Rod Pierce Source: http://www.mathsisfun.com/number-line.html English determination method: SHA-1
Coadan:Spinning Dancer.gifDescriptionSpinning Dancer.gif English: The Spinning Dancer is a kinetic, bistable optical illusion resembling a pirouetting female dancer. Some observers