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  1. Amazing Paper Airplanes

    If you want to build paper airplane models of the space shuttle, F-16 Falcon, F/A-18 Hornet, and other aircraft, this page from the American Society of Mechanical Engineers offers plans and folding instructions. For additional designs, see Kyong H. Lee’s “Amazing Paper Airplanes” Web site. Go to: http://www.asme.org/events/flight/paperarchive.shtml?URL=www.asme.org and http://www.amazingpaperairplanes.com/

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  2. 19551

    This article makes the common claim that self-replicating robots could be a boon for clearing minefields. In truth, a complex electronic device simply does not last long in the field. When it breaks and you are 3 days from the nearest town, where do you get a spare part or battery? Tools for removing land […]

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  3. Tech

    In Its Own Image: Simple robot replicates itself block by block

    A robot made by stacking identical, cubelike modules has demonstrated that it can copy itself.