-
Alessandro Volta
Battery -
Eli Whitney
Cotton gin
Interchangeable parts
Milling -
Gottlieb Daimler
internal-combustion engines
four-wheeled automobile -
Thomas Edison
The phonograph
Motion pictures
Light bulb
Carbon microphone
Telegraph -
Alexander Graham Bell
Telephone
Twisted pair
Graphophone -
Henry Ford
Developed and manufactured the first automobile -
Orville wright
Airplane -
Gugliemlo Marconi
Worked on long-distance radio transmission