http://www.mentalfloss.com/blogs/archives/14564 Feel Smart Again Tue, 24 Nov 2009 21:09:57 -0500 http://wordpress.org/?v=2.8.5 hourly 1 http://www.mentalfloss.com/blogs/archives/14564/comment-page-1#comment-71166 Matt Thu, 01 May 2008 21:07:05 +0000 http://www.mentalfloss.com/blogs/archives/14564#comment-71166 These are great, and someone has flown unpowered 22 miles across the English Channel with a carbon fibre wing strapped to his back. Of course, there have also been nearly one hundred human-powered airplanes successfully flown. These are great, and someone has flown unpowered 22 miles across the English Channel with a carbon fibre wing strapped to his back. Of course, there have also been nearly one hundred human-powered airplanes successfully flown.

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