Finding:

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   Benjamin Franklin

   When denied the chance to write a letter to the paper for publication, Franklin invented the pseudonym of "Mrs. Silence Dogood," who was ostensibly a middle-aged widow. ... He noted that conductors with a sharp rather than a smooth point were capable of discharging silently, and at a far greater distance.
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   Lightning rod

   In the United States, the pointed lightning rod conductor, also called a "lightning attractor" or "Franklin rod," was invented by Benjamin Franklin in 1749 as part of his groundbreaking explorations of electricity.
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   Glass harmonica

   When Benjamin Franklin invented his mechanical version of the instrument, he called it the armonica, based on the Italian word "armonia", which means "harmony".
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   Odometer

   Benjamin Franklin invented a simple odometer when he was going on trips in carriages. ... Trunk/Boot • Hood/Bonnet
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   History of electromagnetism

   This two-fluid theory would later give rise to the concept of positive and negative electrical charges devised by Benjamin Franklin. ... In a closed circuit conductor an electric current is also a displacement of electricity.
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   18th century

   1744: French attempt to restart the Jacobite rebellion fails ... 1752: The Lightning rod invented by Benjamin Franklin
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   Catheter

   Benjamin Franklin invented a flexible Catheter for his brother who had a bladder stone. ... Worldwide Catheterization Lab Manufacturer
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   Lightning protection system

   The surge of lightning current through a lightning protection conductor will create a voltage difference between it and any conductive objects that are near it. ... This is the same idea that prompted Benjamin Franklin to invent the lightning rod.
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   Benjamin Franklin High School (New Orleans, Louisiana)

   In the late 1980s, the Orleans Parish School Board leased land from UNO and built a larger and more modern campus for Ben Franklin. ... | Benjamin Franklin High School |
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    Franklin Institute

    The Budd BB-1 Pioneer, in front of the museum, was the first stainless steel airplane built by the Edward F. Budd Manufacturing Corporation and has been on display since 1935. ... Benjamin Franklin

Explore the following pages on Powerset:

• Benjamin Franklin,
• Lightning rod,
• Glass harmonica,
• Odometer,
• History of electromagnetism,
• 18th century,
• Catheter,
• Lightning protection system,
• Benjamin Franklin High School (New Orleans, Louisiana),
• Franklin Institute