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.
During a teardown of the iPad Air and Microsoft Surface Pro 3 at the Medical Design & Manufacturing Show in Schaumburg, Ill., an engineer showed this "inflammatory" video about the dangers of maliciously mishandling lithium-ion batteries.
Science fiction author Isaac Asimov may have the best rules for effective brainstorming and creativity. His never-before-published essay, "On Creativity," recently made it to the Web pages of MIT Technology Review.
Much has been made over the potentially dangerous flammability of lithium-ion batteries after major companies like Boeing, Sony, and Tesla have grappled with well-publicized battery fires. Researchers at Stanford University may have come up with a solution to this problem with a smart sensor for lithium-ion batteries that provides a warning if the battery is about to overheat or catch fire.
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
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