This edition of Engineering News by NSF announces "The Most Historic Wall Since the Great Wall of China." What makes this wall original is that it was built entirely by a robot, making it "the first wall ever constructed entirely by machine, with no use of human hands." A link to a related website describes the technology used to build the wall known as Contour Crafting. Contour Crafting builds the structures layer-by-layer in a process by which structures can be "'printed out' from computer des
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