China's Rare Earth Export Cutbacks Raise Alarms
Blog 9/22/2011 20 comments Prices for rare earth elements, an important component electromechanical products, have jumped by at least an order of magnitude in the past year as a result of export cutbacks from China, the world's largest source.
Rare Earth Shortages Revive Alternatives
Blog 9/6/2011 9 comments Rising concern over China restricting exports of rare earth elements has caused the industry to revisit older magnetic materials from the mid-20th century, such as aluminum-nickel-cobalt compounds and thin films of iron and nitrogen.
With erupting concern over police brutality, law enforcement agencies are turning to body-worn cameras to collect evidence and protect police and suspects. But how do they work? And are they even really effective?
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.