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In Reply to: Re: Found it posted by Joseph on November 20, 2004 at 09:30:32:
http://www.jsc.nasa.gov/history/flag/flag.htm the paragraph "Deployment and Performance" describes the reason for the ripple effect. The fabric was subjected to high temperature conditions and held up by 2 rods. An experiment at home in zero wind conditions (since I don't have a vacuum chamber), showed that a piece of cloth extended in the same manner can easily be made to look like it is waving.
