Based on a series of variation of fabric sample size under 8 kinds of different diameter of pallet, the drape coefficients are measured.

In the second variation, called the "vertical archipelago", the village exploits resources in widely dispersed locations, constituting a series of independent production "islands".

By his senior year he had been granted his first patent, for a socket interface that used a series of bladders to compensate for the wide variation in the shapes of different people's residual limbs.