This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our continuing commitment to the preservation of printed works worldwide.
The book is an outdated example of a good work. Regardless, it gives an accurate account on the mindset of people living in the early twentieth century. They thought of electricity in a very pragmatic way, trying to maximise profits from it and finding new uses for it.
Fun fact 1: Bain’s telegraph was based on a principle that at the receiver’s end, an electric current was passing through a solution and it was catalysing a chemical reaction resulting in a synthesis of a blue dye. The dashes and dots were the consequence of a differences in the length of time during which a current was allowed to pass through the solution.
Fun fact 2: Projects regarding obtaining electrical energy from renewable sources were present as early as the XIX century.