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Lightning Rod
Benjamin Franklin's experiments lead him to the lightning rod, which placed at the apex of a barn, church steeple, or other structure that conducts lightning bolt into the ground -
Submarine
David Bunshells "Turtle" submerges by taking water into its tanks and reverses the process to rise. It moves by means of a hand crank propeller -
U.S. First Patent
The U.S. issues its first patent William Pollard -
The Cottin Gin
The Cottin Gin was used in slavery to create clothing in the 1800s. -
Interchangeable Parts
Eli Whitney contracts to manufacture 10,000 muskets for the U.S. Army at the time an entire would be made by a single person, without standardize measurements. -
Steam-Powered Pumping Station
the Fairmount Water Works -
Transition
Terrafugia, a 2006 start-up, has developed a craft that can be flown by properly by licscensed pilots and driven on any road. -
Jet Pack
This "vehicle" can take flight into the air. This was created by MArtin Jetpack