You can make hot air balloons using steam rather than... er... hot air. Here's a link. Amazing.
(from a discussion started on a mailing list this morning by Bryson Gore)
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About this Entry
This page contains a single entry by Jonathan published on May 2, 2007 5:43 PM.
The cutting edge of democracy was the previous entry in this blog.
Contraptions is the next entry in this blog.
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