Small Streams

Cutting Up Circles
November 13, 2011, 1:18 pm
Filed under: drawing, math, thinking, video | Tags:

In order to make a base 10 adding wheel one has to divide a circle into ten equal parts. With the help of this guide to making a pentagon, I came up with this:


This has the benefit of all the pentagram’s golden ratio goodness. In order to make a proportion wheel (circular slide rule), you’ll need to use a logarithmic scale for numbering an inner and outer circle. Check out the solar physics site for more.