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Lumia Lunchbox Laser

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Back in the 1970s, my friend Wayne Gillis and I used to do light shows at science fiction conventions. We had the usual panoply of overhead, slide, and custom-made projectors, and a single, very expensive, helium-neon laser from Edmund Scientific. Calling ourselves Light Opera, and later, Illuminatus, we performed at... Read more »

BEAM Solar Chariots

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BEAM robot building techniques allow you to build fun and simple little robots with lots of room for stylizing. BEAM robots can move anywhere from a fraction of an inch to a couple of feet, depending on how big their capacitors are. You can also use batteries. For these two... Read more »