Pour les troglodytes :-)
Deep Inside the James Bond Villain Lair That Actually Exists | Wired Enterprise | Wired.com
http://www.wired.com/wiredenterprise/2012/11/bahnhof/?pid=379
Avant
http://www.wired.com/wiredenterprise/wp-content/gallery/bahnhof/bahnhof-7.jpg
Après
http://www.wired.com/wiredenterprise/wp-content/gallery/bahnhof/bahnhof-3.jpg
New Scientist TV: Flying object propels itself by flipping inside out
http://www.newscientist.com/blogs/nstv/2012/04/flying-object-propels-itself-by-flipping-inside-out.html
It’s not a bird or a plane: it’s an unusual flying object that propels itself by flipping inside out. Created by engineers at Festo in Esslingen, Germany, the floating band filled with helium takes on different shapes while expanding and contracting to generate thrust and move through the air.