The wings on modern commercial aircraft are attached to the plane at a slight angle known as a dihedral. This angle allows the plane to achieve the lift it needs to fly, and at the proper angles, ...
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 ...
Demonstrate that if two trihedral angles have dihedral angles respectively equal, then their face angles are equal. For 15 years Columbia’s Dean Herbert Edwin Hawkes has dangled this poser before his ...
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