Flying object propels itself by flipping inside out, Festo does it again http://www.newscientist.com/blogs/nstv/2012/04/flying-object-propels-itself-by-flipping-inside-out.html …
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Flying object propels itself by flipping inside out, Festo does it again http://www.newscientist.com/blogs/nstv/2012/04/flying-object-propels-itself-by-flipping-inside-out.html …