Honda’s Silcion-Free Solar Cells

Honda has begun selling new thin-film solar cells in Japan. The solar cells are made with a compound of copper, indium, gallium and selenium (CIGS), rather than the conventional silicon. The cells are said to be “greener” because there is less carbon dioxide generated during their production. Some pundits believe that CIGS cells may become […]

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Non-Toxic Caulk Substitutes

We’ve tracked down a more efficient caulking compound — one that does not contain toxic VOCs (volatile organic compounds) such as toluene and hexane. These are present in conventional caulk because they are cheap to produce. One company, AFMSafeCoat, produces a caulking compound that is a water-resistant, flexible sealant with excellent adhesion.

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New Soft Helmet Turns Hard in Crash: The RibCap

The Ribcap is a soft, flexible cap that hardens on impact to protect the head from damage. The secret lies in the use of an elastomeric compound called d3o. It was discovered by researchers at University of Hertfordshire. It’s a shear thickening material, which is flexible when moved slowly, but when it is compressed by […]

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A Lightweight Water Bottle that Doesn’t Leach

Yes — a water bottle that does not leach plastic or any other compound into the water its holds. Klean Kanteen is a reusable, lightweight stainless steel container. Plastics containers tend to leach unwelcome compounds such as BPA during regular use, exposure to heat, and especially after cleaning. Klean Kanteen is made from 304 L.N. […]

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