The automotive world's migration to hybrid vehicles won't slow down in 2012. Ford Motor Co. will roll out its C-Max hybrid and C-Max Energi plug-in hybrid, while Toyota unveils its Prius PHV. But the show-stealer could be the "micro-hybrid," or "start-stop" car. The micro-hybrid, which has been quietly waiting in the wings for years, will make its biggest move yet in the coming year. Ford, Chevy, Buick, Kia, and others will roll out the technology in 2012, joining a handful of models from Fiat, Volvo, and Alfa Romeo that already have it. At its most rudimentary level, start-stop will enable vehicles to turn off their engines while waiting at stop lights, stop signs, or in heavy traffic. Soon, however, it will go beyond that level, enabling engines to shut down while a vehicle is coasting, in some cases as fast as 75mph. Experts say that the technology will be employed on every new car by 2025, making it impossible for even the most dedicated gasoline burners to avoid it. Bosch's start-stop starters, shown, can reduce a vehicle's fuel consumption by 5 percent.
(Source: Robert Bosch LLC)
benmlee2, you said "The only place where weight comes into play is which party gets hurt more." Only? For me, that's the top reason not to have a smaller car. But I wasn't talking about driving a Hummer, I meant more like the Nissan Sentra-sized compact I drive today. OTOH, I was driving one of those years back when a semi driver tried to run me off the road, who knows why. It's happened more than once. That aggressive behavior you describe has been going on for decades, though it does go in cycles.
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.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.