While working on a project for a television program,
several-times-over Gadget Freak John Tindall started tinkering with a pulsejet
engine. Pulsejet engines were used by the Germans during WWII. The technology was
left behind by turbofan jets. But Tindall found the pulsejet well-suited to garage
- and Gadget Freak - tinkering. Apparently there is a wide community of
hobbyists playing with pulsejets at home. Tindall came up with a cyclonic-valve
radial design that makes for smoother airflow. He proved the concept with
plastic and aluminum valves - but the gadget backfired and blew up. Next step, a
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
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.