Excerpt from Wireless Telegraphy and Hertzian Waves The subject will be divided into four portions, viz. A brief outline of what electricity is; a short histori
'Hertzian Wave Wireless Telegraphy' is an article discussing a type of telegraph—"spark telegraph" or "Marconi telegraph"— invented by Guglielmo Marconi, an
Important new insights into how various components and systems evolved Premised on the idea that one cannot know a science without knowing its history, History