Contenu connexe
Similaire à Thomas Edison from ronvinkwan (20)
Thomas Edison from ronvinkwan
- 7. Edison’s inventions (Part 1) Audio Tinfoil phonograph Wax cylinder recorder Voice recorder Disc phonograph Visual Motion Pictures
- 8. (Part 2) Communication Quadruplex telegraph Telegraph transmitter Loud Speaker- telephone Automatic telegraph Machineries Ore milling
- 9. (Part 3) Lighting Light Bulb Electric light system Electricity Electric generator Electric pen