elkasrichapter14



Thomas Edison & The Lightbulb

The lightbulb was invented in 1879. It was invented by Thomas Edison. It extended the time of business. It allowed businesses to stay open longer and therefore more people are allowed. They started as carbon filament bulbs.

Cite for both the picture and the info:

"History of the Light Bulb | Lighting Basics | Bulbs.com." //Bulbs.com //. Web. 9 Oct. 2015. .