Plastic number/ Harriss spiral

 From:  bemfarmer
8351.7 In reply to 8351.6 
Re: Plastic name:
See history and Hans van der Laan:
https://en.wikipedia.org/wiki/Plastic_number
- Brian

Also mathematical interest:
http://mathworld.wolfram.com/PlasticConstant.html
I may try for a Snub Icosidodecadodecahedron :-)

EDITED: 19 Mar 2017 by BEMFARMER