Cone (geometry)
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  Subject Replies Date
The number of planes in cone 0 3/5/2015
Would anybody know a good reference for the behaviour of the Sachs optical scalars of the null-geodesic generators of a light cone near the vertex (in... 0 10/7/2013
Arcs on the top and bottom of the developable surface created by a vertical section of a cone 0 6/21/2013
I'm restoring some 10' wooden colums that are tapered. I've decided to replace the bottom 10" with a plastic material. Not that it matters to the prob... 0 6/21/2013
 
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