Golden Rectangle

This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com

Return to the first construction, how many golden rectangles appear? How are each successive golden rectangles constructed?

How is the Logarithmic Spiral constructed?

Jacy Johnson, 2 November 2013, Created with GeoGebra