What arc lamp is made of
Light from an electric arc between carbons (Petrov, Davy, c. 1802); the “Yablochkov candle” (1876) made it street lighting.
- Carbon rods — has part. An arc burns between them.
- Arc gap regulator — has part. It brings the electrodes together as they burn away.
- Electric arc — uses. An arc.
- Graphite — is made of. Carbon electrodes.