By Molly Graber and Chris Merrick Have you ever dreamed of being really tall? Walking on stilts is a fun and adventurous sport. But where are you going to get a decent-priced pair of stilts to try for your first time? With these instructions, you can add as much height as you want and not […]
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One of my favorite things to do is talk with other ham radio operators through satellites or the International Space Station (ISS). To do this, I stand on a rooftop and tune a handheld multiband radio while tracing the orbit of a satellite or the ISS with my homemade yagi antenna.
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This think-small washer needs no electricity or running water.
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Use a solar-powered motor and a shade to follow the sun, maximizing its energy.
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Breathe new life into an old, damaged pocket knife by building new custom-fit wooden scales.
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Create fresh air without the energy loss.
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A hollow bolt hides secret messages.
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