Re: NASA article on history of solar sails

From: Bev M Ewen-Smith (bmes@coaa.co.uk)
Date: Sat Aug 02 2008 - 23:54:27 UTC

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    At 03:29 02-08-2008, you wrote:
>This article will probably be of interest to many list members.
>http://science.nasa.gov/headlines/y2008/31jul_solarsails.htm?list1099069

And did anyone else scratch their heads over "..a 20-meter diameter 
spinning mirror ... produced a 5 km wide bright spot..."
The word "bright" must be a relative term unless conservation of 
energy is suspended.

Bev

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