A tempered glass bottom on a new cantilevered walkway will allow visitors to the Grand Canyon to look 4,000 feet straight down to the Colorado River. It's 10 feet wide and extends 70 feet from an anchor rock. The Hualapai Indian Tribe's Glass Walkway features 90 tons of glass and a million pounds of steel. A grand opening is set for March. Another footnote for scientists: According to a blog (citing an AP report), the Bush Administration supposedly won't let park officials reveal their estimate of the age of the park for fear of offending creationists. . Seems a little far fetched to me.
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.
Although plastics make up only about 11% of all US municipal solid waste, many are actually more energy-dense than coal. Converting these non-recycled plastics into energy with existing technologies could reduce US coal consumption, as well as boost domestic energy reserves, says a new study.
This year's Dupont-sponsored WardsAuto survey of automotive designers and other engineers shows lightweighting dominates the discussion. But which materials will help them meet the 2025 CAFE standards are not entirely clear.
Artificially created metamaterials are already appearing in niche applications like electronics, communications, and defense, says a new report from Lux Research. How quickly they become mainstream depends on cost-effective manufacturing methods, which will include additive manufacturing.
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.