organic process and movement by pushing the mechanical 
principle to the point of reversal is a pattern that appears in all 
human extensions, whatever, as they reach a peak of 
performance. By speed-up, the airplane rolls up the highway 
into itself. The road disappears into the plane at take-off, and 
the plane becomes a missile, a self-contained transportation 
system. At this point the wheel is reabsorbed into the form of 
bird or fish that the plane becomes as it takes to the air. Skin-
divers need no path or road, and claim that their motion is like 
that of bird flight; their feet cease to exist as the progressive, 
sequential movement that is the origin of rotary action of the 
wheel. Unlike wing or fin, the wheel is lineal and requires road for 
its completion.

     It was the tandem alignment of wheels that created the 
velocipede and then the bicycle, for with the acceleration of