The DDL Series of double-diaphragm oilless linear pumps include 230V models suitable for use where higher voltages are required. Other versions include lower-voltage ac models and a 12V dc unit. UL listings are certified for 15 models in the line. The models in this series of compressors and vacuum pumps offer a spectrum of air flow and pressure/vacuum capabilities. Free air flow can be as low as 0.39 cfm or as high as 8.6 cfm with pressure to 10.5 psi and vacuum to 12.1 inches Hg.
Samsung's Galaxy line of smartphones used to fare quite well in the repairability department, but last year's flagship S5 model took a tumble, scoring a meh-inducing 5/10. Will the newly redesigned S6 lead us back into star-studded territory, or will we sink further into the depths of a repairability black hole?
In 2003, the world contained just over 500 million Internet-connected devices. By 2010, this figure had risen to 12.5 billion connected objects, almost six devices per individual with access to the Internet. Now, as we move into 2015, the number of connected 'things' is expected to reach 25 billion, ultimately edging toward 50 billion by the end of the decade.
NASA engineer Brian Trease studied abroad in Japan as a high school student and used to fold fast-food wrappers into cranes using origami techniques he learned in library books. Inspired by this, he began to imagine that origami could be applied to building spacecraft components, particularly solar panels that could one day send solar power from space to be used on earth.
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.