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.
A composite based on a high-performance PEEK-like resin we told you about two years ago when it was still in R&D has now been licensed by the US Naval Research Laboratory (NRL) for commercial manufacturing.
Microsoft, HP, Dassault, and other industry heavyweights in 3D printing have launched a new 3DP file format, 3MF. The consortium says the spec will more fully describe a 3D model and will be interoperable with multiple applications, platforms, services, and printers.
NASA's been working on several different ongoing projects for 3D-printed rocket engine components in metals and now it's reached another first in aerospace 3D printing: a full-scale, 3D-printed rocket engine component made of copper.
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