Replicators Have Arrived
The Once and Future Moon, 24 October 2011
http://blogs.airspacemag.com/moon/2011/10/replicators-have-arrived/
"We’re not quite there yet but crude versions of such imagined machines already exist. These machines are called “rapid prototype” generators or three-dimensional printers. They take digitized information about the dimensions and shape of an object and use that data to control a fabricator that re-creates the object using a variety of different materials. Typically, these machines use easy to mold plastics and epoxy resins but in principle, any material could be used to create virtually any object."
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