Euclid's Elements - Book III, Proposition 12
If two circles are externally tangent, then the line that passes through their centers will also include the point of tangency of the circles.
Theo Jansen's Strandbeest
Figure 16.6b Imperfectly competitive external market
copy a segmant
testfileTue Nov 13 21:01:15 CET 20180.0338087314839316
Exploration 2 - Proportionallity with 3 Lines