Thomas Edison
Lighting tesla
ELECTRICAL LAMPS AND THEIR TYPES
The Light bulb By: Allyson Carter. Changed society, history, and everyday life. replaced fire –torches, candles, and oil and gas lamps The light bulb.
Incandescent Light Bulb 22 Inventors of incandescent light bulbs before Edison Heated metal filament glows when heated and is protected from air by glass.
The Light bulb
