Outer metal foil coating and chisel: what they have in common

1. Step 1. Outer metal foil coating — is part of — Leyden jar. Foil on the outside of the jar.
2. Step 2. Leyden jar — uses — Electrostatic machine. Charged by the machine.
3. Step 3. Electrostatic machine — uses — Friction. Friction.
4. Step 4. Friction — is used in — File. Material is removed by the friction of the teeth.
5. Step 5. File — has part — Handle. A handle.
6. Step 6. Handle — is part of — Chisel. A wooden or plastic handle.

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