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  • Most rechargeable batteries are lithium-ion batteries made from relatively scarce elements including precious metals like cobalt. Worldwide lithium reserves themselves are [...]
  • Electricity from Falling Snow

    December 17, 2020

    Energy harvesting has made great strides over the past few years. Companies have begin harvesting kinetic energy from people dancing on surfaces, and researchers are [...]
  • A new machine learning algorithm is poised to help urban transportation analysts relieve bottlenecks and chokepoints that routinely snarl city traffic. The tool, called [...]

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  • Besides producing massive amounts of CO2, concrete production also uses large amounts of water contaminated with concrete. Managing the slurry or concrete wash water is [...]

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