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Guest Blogs
Content posted in November 2011
Petroski on Engineering: Made in Japan
Guest Blogs 
11/30/2011  18 comments
According to Duke University engineering professor Henry Petroski, Japan may not be a leader in prize-winning science, but it certainly is a force to be reckoned with in consumer products.
US Army's Boot-Based Energy Harvester Lightens Soldier's Load
Guest Blogs 
11/21/2011  34 comments
Sustainable power sources are high on the Pentagonís must-have list of soldier technologies. One promising concept is biomechanical energy harvesting.
Photovoltaics Evolve Amid Cost Challenges
Guest Blogs 
11/17/2011  15 comments
The evolving solar photovoltaic (PV) market presents numerous challenges to design engineers.
When Mechanicals Outlast the Electronics
Guest Blogs 
11/7/2011  23 comments
Electronic touch screens and entertainment components will wear out well before the vehicle does. What do we do about that?
Solyndra Seeds Doubts About Photovoltaic Manufacturability
Guest Blogs 
11/4/2011  18 comments
The real lesson in successive crashes at Solyndra, Beacon Power, and First Solar may be that designers are not keeping issues of practicality and manufacturability paramount.
Top 10 Design Principles
Guest Blogs 
11/3/2011  7 comments
With practice, these principles become transparent in a design.




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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.
A Silicon Valley company has made the biggest splash yet in the high-performance end of the electric car market, announcing an EV that zips from 0 to 60 mph in 3.4 seconds and costs $529,000.
The biggest robot swarm to date is made of 1,000 Kilobots, which can follow simple rules to autonomously assemble into predetermined shapes. Hardware and software are open-source.
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