Fresh video shows that one of the most fascinating eVTOL aircraft designs we've seen is now flying at larger scale. The Transwing platform uses a unique dihedral folding wing system to move between ...
Interview with Dutch climber Jorg Verhoeven after the second free ascent of Dihedral Wall, the difficult big wall climb freed in 2004 by Tommy Caldwell on El Capitan in Yosemite, USA. "Climbing The ...
In mathematics, a dihedral group is the group of symmetries of a regular polygon, including both rotations and reflections. What is a dihedral group? In mathematics, a dihedral group is the group of ...
Revolutionary fast & light mountaineering boot SCARPA RIBELLE TECH 3 HD, with superior waterproof and breathable protection thanks to HDry technology. Innovative double configuration modular harness ...
On February 26, 2012 at California's McClellan Air Force Base, TV producer John Collins smashed the record for the longest paper-plane flight with Suzanne. Here's how to build a rival to his ...
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