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It is 250,000 sq ft, giving 500 ft pers side.  I had noticed that also, too
late for previous post.

Jim West
www.geocities.com/noxot

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On Wed, 27 Aug 2008 11:40:52 -0400, Eric Entemann <[log in to unmask]> wrote:

>
>"A village of 5,000 could replace its gasoline requirements,
accordingly,with an algae farm of 25,000 square feet (500 ft per side). "
> 
>Um, 500 feet per side gives an area of 250,000 square feet, about six acres
or over 2 hectares.  25,000 square feet is the area of a square a bit less
than 160 feet on a side, about 0.6 acres.  Which is it?