Adam Boesel isn’t quite ready to light up his neighborhood with a legion of electricity-generating exercise bikes, much less his own gym. But the owner of the Green Microgym in Portland, Ore., hopes ...

Dynamo Micropower is a tiny startup that’s only been around a short time, trying to build a very small generator for the home. But since forming the company in January, co-founder Jason Ethier, 23, ...

THIS work, which is considerably enlarged from its first appearance, now includes accounts of all the leading forms of dynamo- and magneto-electric machines with the exception of those of Edison, of ...

THIS little book of 75 pages is designed to give to amateurs practical information as to the construction of a small working dynamo-machine. What is aimed at is the building up of a machine capable of ...