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 ...

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, ...

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 ...

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 ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

The cartoonist of the future wouldn’t have to lift a finger, thanks to tomorrow’s wonderful machines. At least that was the idea behind this 1923 cartoon by H.T. Webster. Americans of the 1920s saw a ...