18 US inventions that created the modern world.
INVENTION TOWN LOCATION Lightbulb Menlo Park, N.J.v Thomas Edison Center Stock Ticker New York, N.Y. Western Union Telegraph Building Airplane Flight Kill Devil Hills, N.C. Wright Brothers Memorial Assembly Line Detroit, Mich. Highland Park Plant GPS Los Angeles, Ca. Los Angeles Air Force Base Moon Landing Kennedy Space Center, Fla. Kennedy Space Center Personal Computer Albuquerque, N.M. Ed Roberts's garage Electric Traffic Light Salt Lake City, Utah Intersection Cotton Gin Savannah, Ga. Mulberry Grove Plantation Phillips Screw Portland, Ore. Henry Phillips' home Fast Food Wichita, Kan. First White Castle Steel Plow Grand Detour, Ill. John Deere Historic Site Atomic Energy Los Alamos, N.M. Manhattan Project National Historical Park Refrigeration Philadelphia, Pa. Oliver Evans's 'Mars Works' Smartphone Las Vegas, Nev. COMDEX Trade Show Telephone Boston, Mass. Historical Plaque Internet Los Angeles, Calif. UCLA Boelter Hall Polio vaccine Pittsburgh, Pa. Historical Plaque