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 ...
At the end of May Tommy Caldwell freed the Dihedral Wall, on El Capaitan, America. It is is now considered the hardest big wall free climb in Yosemite At the end of May Tommy Caldwell freed 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 ...
The Jeff Katz and Boston Consulting Group startup Dihedral -- with an assist from two major airlines and four hotel chains -- can turn out to be something huge or meander nowhere like some of the ...
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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