Art of the Problem | History of Batteries & Electromagnetism (voltaic pile) @ArtOfTheProblem | Uploaded 11 years ago | Updated 11 hours ago
The Voltaic pile and the discovery of electromagnetism. These technologies lead us to electromagnetic communication systems...and a communications revolution. Featuring observations by Alessandro Volta & Hans Christian Oersted.

References:
"On the Electricity excited by the mere Contact of conducting Substances of different Kinds" (Alessandro Volta, 1800)
http://www.chemteam.info/Chem-History/Volta-1800.html

Stock footage:
Prelinger Archives: http://archive.org/details/Telephon1946