Army Designs Tactical Microgrids for the Battlefield
Christopher Wildmann, an electrical engineer with the US Army Research, Development and Engineering Command, stands between a 60 kW Tactical Quiet Generator, left, and a 30 kW unit that were modified to enable a microgrid. (Source: US Army)
A postcard or post card is a rectangular piece of thick paper or thin cardboard intended for writing and mailing without an envelope. There are novelty exceptions, such as wood postcards, made of thin wood, and copper postcards sold in the Copper Country of the U.S. state of Michigan, and coconut "postcards" from tropical islands.
In some places, it is possible to send them for a lower fee than for a letter. Stamp collectors distinguish between postcards (which require a stamp) and postal cards (which have the postage pre-printed on them). While a postcard is usually printed by a private company, individual or organization, a postal card is issued by the relevant postal authority.
Does anyone see anything slightly strange about the camo colors of these units? Maybe I'm missing something, but I would think that regardless of their efficiency, their heat, electromagnetic, and sound properties would make them a larger target than if they just painted them orange.
Now, here's an appropriate use for hybrids and alternative sources.
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 Diego’s 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 person’s sweat.
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