Brush Dynamo Electric Machine, from Scientific American 1881

May 16, 2012 | by John Vidumsky

About the Author

John Vidumsky John Vidumsky has been exploring abandoned spaces for as long as he can remember. He recently received an MA in history from Temple University, where he studied 20th-century Russian history. Currently, he works for Hidden City as Head of Research and Client Services. In his spare time, John plays Celtic harp, runs a drum circle and does photography.

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