The glass armonica, Franklin stove, lightning rod, and bifocal glasses — did you know that Benjamin Franklin devised or improved upon these inventions? Learn more when #BenFranklinPBS, a film by KenBurns, premieres tonight at 8/7c on PBS. | PBS Digital Studios
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The glass armonica, Franklin stove, lightning rod, and bifocal glasses — did you know that Benjamin Franklin devised or improved upon these inventions? Learn more when #BenFranklinPBS, a film by KenBurns, premieres tonight at 8/7c on PBS. | PBS Digital Studios
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