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Save as WWF
(via swiss-miss)
The WWF format is a PDF that cannot be printed. It’s a simple way to avoid unnecessary printing. So here’s your chance to save trees and help the environment. Decide for yourself which documents don’t need printing out – then simply save them as WWF.
Sounds pretty awesome: Just save it as WWF. What a smart move, WWF!
(thanks Jens!)
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‘Journey to the Center of a Triangle’ (1976) 8m, dir. Bruce & Katharine Cornwell. Another fabulous film by the Cornwells, created on the Tektronics 4051 Graphics Terminal. Presents a series of animated constructions that determine the center of a variety of triangles, including such centers as circumcenter, incenter, centroid and orthocenter.
(via @braddo)
