Double Stopper Light Bulb
- Cheap manufacturing process
- avoided Edison's one-piece construction by designing a two-piece stopper lamp
- vacuum could not be retained as long with a two piece construction
- A glass stopper was glued into the end
- Tesla - the AC power system
- Tesla had a large display including phosphorescent lighting (a precursor to fluorescent lamps) powered without wires by high-frequency fields and the Egg of Columbus
- The lamps were only produced for one year
- The success of the Tesla Polyphase System installed at the exposition ensured Westinghouse would be selected to harness Niagara, which ended the War of the Currents
- The Edison patents expired in 1894
World Fair
- both bid to light the fair
- Tesla planned on using GE bulbs
Background
- Edison would not sell to Tesla
- So developed a more efficient bulb
- 1882 - Edison began using DC to power a street in New York
A double-stopper light bulb
- 1883 - Tesla built his first transformer that turns AC from low voltage to high voltage
- AC power could travel much further
- 80s and 90s -battle for who would light the country
- First Battle - World Fair
Rachel Okun
Lighting the 1893 World’s Fair: The Race to Light the World
The History Rat
by R.T. Johnson