Battery power in home tools is critical. Remember those first power drills screwdrivers. They could barely turn themselves much less a screw. There's nothing worse than being in the middle of a home project and have your cordless drill crap out. The worst offender for premature wimping out are cordless vacs, namely the Black & Decker DustBuster. I have two 7.2 volt DustBusters and they a both don't suck, BUT THEY"RE SUPPOSED TO!!! I get two minutes max of sufficient power to make using them worthwhile. In other words, I get about a third of my car done of my car before the &^%#%@) unit dies. The earlier 4.8 volt DustBuster was useless junk and the 7.2 volt units didn't improve on it much. Somehow the 7.2 volt unit earned three and half stars in Amazon reviews…maybe I got two lemons. Black & Decker has a huge line of corded and cordless portable vacs. In cordless, they come in many voltages now: 9.6, 14.4, 15.6 and 18 volts. The 18 volt PHV1800 gets four and a half stars on Amazon's user reviews, but costs $55 while less energized units are consider less.
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.