 The Limestone ropeway
by Jakob Ehrensvärd
|  The abandoned power plant
by Jakob Ehrensvärd
|  Ray Tuthill
by John Lichnerowicz
|  Lyndon Bedford
by John Lichnerowicz
|  Columbia University Physics Department, Science & Engineering Schools
by Hubert Steed
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by tvman
|  Vision Engineering - rebuild
by Squatting Dog
|  Emily's Graguation Umass School of Engineering 2016
by Robert E. Lajoie
|  Engineering Materials
by LiDa Corporation
|  Pontcysyllte Aqueduct
by chriswhitehead07
|