With built-in iTunes software, surround-sound quality speakers and the ability to hold up to 100 or even 500 songs, the ROKR provides a unique cell phone experience. Besides its audio capability, the unit has a display that can show full-screen movies and videos, as well as an integrated VGA camera for taking pictures. The unit has an illuminated keyboard, white-light backlighting for the LCD screen and a white LED Flash lamp for the camera. In addition to synchronized rhythm lights that provide a visual accompaniment to the music, the light pattern can be customized for incoming calls. The LEDs require a higher voltage than the 3.7V Li-ion battery, so analog technology provides the dc-dc boost voltage.
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.