On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs." --San Antonio Express-News
Oak Ridge National Laboratory has entered the Guinness record books with the successful printing of the world’s largest 3D printed object.
Made from carbon fiber and ABS thermoplastic composite materials, the new tool measures 17.5 x 5.5 x 1.5 ft (5.3 x 1.7 x 0.5 m) and weighs around 1,650 lb (748 kg). To meet the requirements of the record, the item needed to be one solid piece of 10.6 cubic ft (0.3 cubic m), which a Guinness World Records judge confirmed at a ceremony. “The recognition by Guinness World Records draws attention to the advances we’re making in large-scale additive manufacturing composites research,” says Vlastimil Kunc, leader of [Oak Ridge] team. “Using 3D printing, we could design the tool with less material and without compromising its function.”
Of course, the tool wasn’t designed just for world record glory: printable in just 30 hours, it’s an impressive time and cost saver, considering the existing metal version currently takes about three months to manufacture. [emphasis mine]
The highlighted text illustrates in one sentence why there is a push toward 3D printing. It is cheaper, faster, and will eventually provide much greater flexibility.
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