Here's a skateboard that doesn't need a hill (or a push-off from your foot)
for propulsion. James Howland and his project buddies, Pat Rimel and Nate
Davis, created a motorized mountainboard as a project for their mechanical
engineering class at Colorado
The gadget has a handheld speed control, and the team was able to get the board
up to speed of 13 miles per hour. The speed decreases while traveling up hills
but still has enough torque to conquer hills with ease. The mountainboard also
has buzzer on the nose that acts as a horn.
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.