Video: Inside the World's Largest Wind Tunnel
Electronic News & Comment 8/23/2013 29 comments When NASA Ames runs its massive wind tunnels, the surrounding area knows it. Local aircraft are warned of potential updrafts. Electric utilities brace for sudden power draws. And nearby residents are said to hear its 300-knot airflows from miles away.
UL Targets Lithium-Ion Battery Fires
Electronic News & Comment 8/5/2013 27 comments Inspired by recent overheating incidents, Underwriters Laboratories has developed a new testing methodology, along with guidelines and standards aimed at making lithium-ion battery applications safer.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diegoís Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a personís sweat.
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