Joseph Henry HouseJoseph Henry House
Princeton, NJ




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Norteamericana
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Home of Joseph Henry, whose scientific research on electromagnetic self-inductance led to the electrical telegraph. He was also the first Secretary of the Smithsonian Institution Photo: Elisa.rolle, CC BY-SA 3.0, via Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Joseph_Henry_House-072.jpg)
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