March 2005

Xtracycle: Efficient Bike Extender

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Xtracycle is a 15-inch bike extender with dual racks. It turns standard bikes into practical transportation devices, capable of carrying sizable loads. The inventor, Ross Evans, realized that by lengthening the wheelbase of an ordinary bike he could increase the portage capacity without significantly hindering handling. He arrived at a simple, elegant modification: Remove the […]

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SafeCoat: Non-Toxic Paint

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Why does almost all of the paint sold in the U.S. contain toxic ingredients? Because chemicals (such as formaldehyde and acetone) are cheap. The resources needed to study the long-term effects of the thousands of chemicals contained in paints, stains, and varnishes would be immense. The . Other non-toxic ingredient could be used — but

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