Lamp ballast and internal combustion engine: what they have in common

1. Step 1. Lamp ballast — is part of — Fluorescent lamp. A choke and starter or an electronic ballast.
2. Step 2. Fluorescent lamp — uses — Plasma. A discharge in mercury vapour.
3. Step 3. Plasma — uses — Electric arc. An arc is an example of plasma.
4. Step 4. Electric arc — is used in — Spark plug. A spark is an electric discharge.
5. Step 5. Spark plug — is part of — Internal combustion engine. A petrol engine ignites the mixture with a spark plug.

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