The Certainty of a Future Life in Mars
I find in an old note book of my father's, dated 1879, "chlorophyllous matter in leaves encouraged by electric energy, presumably by the blue rays." In heating and cooking by electricity my father had made some progress though he had not in 1880 employed his time in this direction.
Perhaps more remarkable than anything else presenting my father's great scientific ingenuity was his improvements of the dynamo and the invention of a new successful small traction engine.
In 1880 the complete distinction between alternating and direct currents had not been made, and the device of a successful converter, for the change of the former comparatively inert to the lat