His kite-in-a-lightning-storm experiment, and most likely after witnessing what happens to buildings that are struck by lightning.
the lightning rod
Benjamin Franklin did not invent the lightning rod, but he did popularize its use through his experiments with electricity in the mid-1700s. The lightning rod was actually invented by the American scientist and statesman, Benjamin Franklin.
Benjamin Franklin invented the lightning rod in 1749. It was designed to protect buildings and ships from lightning strikes by attracting the lightning and safely conducting it to the ground.
benjamin franklin-lightning rod
One inventor of the lightning rod was Benjamin Franklin. Another was a German priest, Diwisch. Both appear to have made their inventions in the same decade, around 1753. See "Who Really Invented The Lightning Rod?", The Electrical Review, volume 32, 10Feb1893, p.146.
The lightning rod
Benjamin FranklinBenjamin Franklin
He wanted to see if lightning and electricity were the same.
bifocals, electricity, lightning rod, franklin stove,odometer
Lightning rod, Franklin stove, and bifocal glasses.
Lightning rod, Franklin stove, bifocals, glass harmonica
Lightning arrester or lightning rod is a rod paired with a conductor. The lightning arrester was invented by Benjamin Franklin in the late 1749.