Lightning Rod: Difference between revisions
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<p>29 July 1750. Philadelphia, PA. Enclosed in a letter to a friend dated 29 July 1750, [[Benjamin Franklin|Benjamin Franklin]] proposed the use of elevated pointed rods with their lower ends connected to ground to draw off the charge accumulated on clouds in order to prevent lightning discharges. </p> | <p>29 July 1750. Philadelphia, PA. Enclosed in a letter to a friend dated 29 July 1750, [[Benjamin Franklin|Benjamin Franklin]] proposed the use of elevated pointed rods with their lower ends connected to ground to draw off the charge accumulated on clouds in order to prevent lightning discharges. </p> | ||
[[Category:Scientific_tools_and_discoveries]] | |||
[[Category:Scientific_disciplines]] | |||
[[Category:Electricity]] | |||
Revision as of 13:45, 16 May 2012
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29 July 1750. Philadelphia, PA. Enclosed in a letter to a friend dated 29 July 1750, Benjamin Franklin proposed the use of elevated pointed rods with their lower ends connected to ground to draw off the charge accumulated on clouds in order to prevent lightning discharges.
