Excavations on unpromising mounds in the Iraqi desert revealed Sumer’s earliest city. Surviving relics and a rebuilt temple ...

Time for the mighty, square-based pyramid. Let's go! Next we see the pyramids ready to compete. Their faces, edges and vertices are all highlighted and the scores written on the board. NARRATOR ...

This file provides functions and modules that construct shapes from a list of cross sections. In the case of skin() you specify each cross sectional shape yourself, and the number of points can vary.

method type of curve; "edges" makes a curve that intersects all the path vertices but deviates from the path edges, and "corners" makes a curve that is tangent to all segment midpoints but deviates ...