A big fan of the Jetsons, engineer Eddie Edwards has designed a personal electric hovercraft. Propelled by a lift fan driven by a lithium-ion battery source that runs one hour between charges, he claims his device can achieve a maximum vertical lift of 5 cm, so long as the rider weighs no more than 95 kg. His newest prototype features ducted thrust to propel and steer the board.
Allied Part #
AC Impeller CFM 710
Other supplies: 1 top board and baseboard and 4 spacer boards (aluminum/honeycomb composite); 1 48-V power system (lithium ion); 1 motor controller; 1 segmented hovercraft skirt (rubberized nylon); assorted nuts, bolts, cables, and connectors.
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.