More hyperbolic crocheting
Posted in Crochet, Design, English, Hands-on math & science on July 25, 2007 | 7 Comments »
Remember the blue and green hyperbolic plane made of triangles? In every corner, seven triangles meet. Because a flat plane can be made with six (regular) triangles meeting in every corner, and seven is more than six, there’s too much fabric everywhere to keep flat and the resulting ‘plane’ surface (thanks, Wilfred!) has a saddle-shape.
I’m [...]
