Lightning rod
device · 1752 · Early modern era
Leads lightning into the ground (Franklin).
Inventor: Benjamin Franklin.
What it is made of
- Lightning rod spike — has part. A rod above the roof.
- Down conductor cable — has part. A conductor to the ground.
- Grounding rod — has part. Electrodes in the ground.
Principles and materials it uses
- Electrical conduction — uses. It carries the current into the ground.
- Copper — is made of. Copper.