The Mars Phoenix Lander has now gone where two predecessors failed to go. The Mars Climate Orbiter spacecraft crashed into the Red Planet in 1999 because of a navigation error when “English” and metric units were confused. The Mars Polar Lander (MPL), was lost near the planet’s South Pole not long after that. As we reported here, the Mars. Phoenix Lander uses technology from the MPL, cutting its cost dramatically. The Phoenix landed Sunday night, with solar panels and a camera deploying just as planned. The first photos show a landscape that looks like a red paved parking lot.
We’re learning already. There is a close-up view of polygon-shaped formations (previously seen from space). Expansion and contraction of ice are believed to cause the shapes, something like the cracks that form in asphalt driveways over the winter. And that’s a great sign because it means the Lander may be close to ice crystals that may hold the clues to previous life. Next step: The specially developed shovel begins digging—chopping soil that can be tested in the on-board labs.
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.