The mechanism is very interesting. Ultraviolet images are projected from underneath the tank onto a window to trigger photopolymerization. But the window is oxygen-permeable which inhibits the polymerization in a very thin "dead zone" next to the window. That keeps the solid polymer separated from the window, allowing the solid structure to be drawn up. http://www.sciencemag.org/content/347/6228/1349.abstract On 03/21/2015 10:15 AM, Fred Lunnon wrote:
It has been remarked (and as usual, I can recall neither the exact words nor their putative author) that any sufficiently sophisticated technology is indistinguishable from magic. I have to confess to utter incapacity to figure out how this device can possibly function --- let alone do so cheaper, faster and more accurately than existing devices! WFL
http://www.theguardian.com/science/2015/mar/19/scientists-create-terminator-...