Foot Powered Grinder
C. Raber describes how to make a foot-powered grinder. It could be used as a starting point for powering other simple machines.
Foot-Powered Grinder For Small Shop (original article)
Family Quadricycle
This short news item describes a human-powered family quadricycle.
Odd-Appearing Vehicle Operated Like Bicycle
Bicycle Drive
A short description of a bicycle driving horse clippers. In our past there were many such bicycle drives conversions from which we can learn today.
