How many bits of data can be crammed onto a single optical fiber? About 150 terabits per second per fiber, according to Partha P. Mitra, a physicist and researcher at Lucent Technologies' Bell Laboratories. "Currently, the maximum amount of data we send is around two terabits per second," says Mitra. He and researcher Jason Stark conducted experiments and report that, at a certain point, increasing signal capacity will not increase information transmission capacity. "We found that instead of output rising as the signal increases, the capacity peaks," says Mitra. "Beyond that, capacity doesn't increase proportionally to signal strength," he notes. Mitra adds that although there is room to grow our signal capacity, actually transmitting data at that rate will require new components and new de-signs for telecommunication equipment. For more information, call 908-582-2446.
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.