Instead of starting with bar magnets and working slowly upward, Woodhull begins with the dynamo and the power station and works backward to the principles, the way a boy learns out of school. Chapters explain ammeters, wattmeters, electric motors, induction coils and household devices, with simple experiments and over a hundred figures.
A practical introduction to electricity from the early twentieth century for young experimenters and the curious. Download the free EPUB.