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Benjamin Franklin Inventions Lightning Rod

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Benjamin Franklin invented the lightning rod. | Interesting Facts
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Benjamin Franklin invented the lightening rod he demonstrated
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When Benjamin Franklin invented the lightning-rod, the clergy, both in... Quote by Bertrand ...

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YouTube > David Franklin
What Causes Lightning? Also, Ben Franklins Lightning Rod!
YouTube · David Franklin · 2.7万次播放 · 2016年2月17日

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