Copper was a type of metal that was used to make transmission cables.[2]
This type of metal could be mined by miners from copper mines.[2]
History
Earth 1956
During the Cosmic Crisis, Flash took a coil of copper wire and wrapped it around himself, and ran around the Earth at super speed to generate a reverse magnetism so that he could return Earth back to its' natural orbit, because it was disrupted by magnetism that was pulling it closer to the sun.[1]
References
- ↑ 1.0 1.1 As seen in Too Hot to Handle.
- ↑ 2.0 2.1 As seen in The Ultra Beam.