Month: June 2011

Math Monday: Cardboard Catenary Arches

Math Monday: Cardboard Catenary Arches

By pleating a square sheet of paper with a pattern of concentric squares, one can fold a saddle shape that mathematicians call a hyperbolic paraboloid, sometimes nicknamed a hypar. Erik Demaine led a workshop at a recent Museum of Mathematics event where he showed how multiple hypars can be assembled to make star-like geometric forms.

The Latest in Hobby Robotics 09

Welcome to this weeks edition of The Latest in Hobby Robotics, where Frits and Andrew are taking a fast tour of 10 cool hobby robot projects! Here are links to the projects in the video: CNC machine v2.1 – aka “Valkyrie Reloaded” Z-39 – made by CNC HXT900 Hexapod DAGU Robot Arm with Roboduino Control […]