Arc lamp
device · 1802 · Industrial Revolution
Light from an electric arc between carbons (Petrov, Davy, c. 1802); the “Yablochkov candle” (1876) made it street lighting.
What it is made of
- Carbon rods — has part. An arc burns between them.
- Arc gap regulator — has part. It brings the electrodes together as they burn away.
Principles and materials it uses
- Electric arc — uses. An arc.
- Graphite — is made of. Carbon electrodes.
Where it is used
- Street light — is part of. The first electric street lights were arc lamps (the “Yablochkov candle”, 1878).