Instructables: exploring - stepbystep - siege-engines - cheap - popular Fri, 6 May 2016 12:07:43 PDT BLOX v1.01 Mini Siege Engines
Mini Siege Engines - More DIY How To Projects]]> WYE_Lance If you enjoy this project, then I encourage you to buy my book, Rubber Band Engineer. You can find it wherever books are sold.Catapults - a classic and exciting engineering project that introduces students to fundamental ideas in physics and engineering like energy transformation, trajectory, and st...
By: WYE_Lance

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Mon, 30 Apr 2012 11:54:36 PDT
Pocket Sized Minty Catapult
Pocket Sized Minty Catapult - More DIY How To Projects]]> scooter76 This is my entry for the pocket size contest. This neat little catapult will launch mints or other fun projectiles in a medieval and discrete manner. It only takes about 10 minutes to build, and is really fun. Enjoy. Materials and Tools All the materials and tools you need for this project can b...
By: scooter76

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Tue, 7 Jul 2009 15:17:58 PDT