The Chevy Volt gets 230 mpg? Wow. To me, that’s a really silly statement. How is the gas mileage of a plug-in electric car relevant? The real issues, of course, are the net impact on carbon dioxide emissions and the reliance on imported hydrocarbons. And there the picture for cars like the Volt is really fuzzy. Most of the energy for the Volt comes from the electric power grid. Forty-nine percent of electric power in the United States is generated from coal, which spews carbon dioxide and pollutants. About 7-8 percent of power is lost during transmission.
Cars like the Volt that will be charged in off-peak hours (overnight) in areas heavily reliant on hydro and nuclear power, such as the Toronto area or parts of California, will definitely be a major improvement over gas-powered cars,
But I haven’t seen a scientific third-party study that really lays out the facts on the real net contribution of electric vehicles. To announce that it achieves 230 mpg is silly and misleading.
Last week, the bill for reforming chemical regulation, the TSCA Modernization Act of 2015, passed the House. If it or a similar bill becomes law, the effects on cost and availability of adhesives and plastics incorporating these substances are not yet clear.
The latest crop of coating and sealant materials and devices has impressive credentials. Many are designed for tough environments with broad operating temperature ranges, and they often cure faster, require fewer process steps, and produce less waste.
A new program has been proposed for testing and certify 3D printing filaments for emissions safety. To engineers who've used 3D printers at home this is a no-brainer. It's from a consumer on Kickstarter, and targets use in homes and schools.
For the last 50 years, the Metal Powder Industries Federation (MPIF) has sponsored an awards competition for creative solutions to designing and fabricating near-net-shape parts using powder metal (PM) technologies. Here are the seven Grand Prize winners of the 2015 contest.
Graphene 3D Lab has added graphene to 3DP PLA filament to strengthen the material and add conductivity to prints made with it. The material can be used to 3D print conductive traces embedded in 3D-printed parts for electronics, as well as capacitive touch sensors.
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