How nodules stay on top at the bottom of the sea

Boulder, Colo., USA: Rare metallic elements found in clumps on the deep-ocean floor mysteriously remain uncovered despite the shifting sands and sediment many leagues under the sea. Scientists now think they know why, and ...

Fungi recycle rechargeable lithium-ion batteries

Although rechargeable batteries in smartphones, cars and tablets can be charged again and again, they don't last forever. Old batteries often wind up in landfills or incinerators, potentially harming the environment. And ...

Electric bikes on a roll in China

Chinese commuters in their millions are turning to electric bicycles -- hailed as the environmentally-friendly future of personal transport in the country's teeming cities.

Silicon-carbon electrodes snap, swell, don't pop

A study that examines a new type of silicon-carbon nanocomposite electrode reveals details of how they function and how repeated use could wear them down. The study also provides clues to why this material performs better ...

Clay key to high-temperature supercapacitors

Clay, an abundant and cheap natural material, is a key ingredient in a supercapacitor that can operate at very high temperatures, according to Rice University researchers who have developed such a device.

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