Thirty years ago, the American steel industry went through an experience similar to today’s crisis in Detroit. I remember writing a page one story for the New York Times in 1977 about a stunning third-quarter loss at Bethlehem Steel, which announced plans to close mills in Johnstown, PA and Lackawanna, NY. Many of the great old names of American steel, like Bethlehem, National, Armco, and J&L, all disappeared. Their assets closed or were bought and improved. Only United States Steel survived as a corporate entity, albeit a very different one. There were many cries of despair, in particular that we needed a domestic steel industry for national defense. But there was no bail-out. The American steel industry re-emerged, pretty quickly really, in a new form. Entrepreneurs launched new mills that operated with electric furnaces fed with scrap. In general, the industry became more customer focused, and less production focused. American steel is very competitive today.
The auto industry needs to go through the same economic Darwinian process.
The company that brought you 3D-printed eyeglasses has launched both an improved clear polymer material for 3D printing optical components and a high-speed, precision, 3D-printing process for making small- and medium-sized batches in a few days.
We've found an amazing variety of robot hands & arms in medicine, space, and service robots, as well as R&D and assembly. Some are based on industrial designs modified for speed or dexterity, while others more closely emulate human movements, as well as human size and shape.
To give engineers a better idea of the range of resins and polymers available as alternatives to other materials, this Technology Roundup presents several articles on engineering plastics that can do the job.
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team £100 to make (about $161 US).
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