Artificio de Juanelo(en.wikipedia.org)
86 points by benbreen | 10 comments
86 points by benbreen | 10 comments
80 points by YeGoblynQueenne | 8 comments
281 points by benbreen | 108 comments
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193 points by samclemens | 144 comments
19 points by eatonphil | 6 comments