Balloon envelope and smart meter: what they have in common

1. Step 1. Balloon envelope — is part of — Hot air balloon. A nylon canopy that holds the heated air.
2. Step 2. Hot air balloon — is made of — Nylon. A light, strong envelope fabric.
3. Step 3. Nylon — is material for — Electric toothbrush. The bristles are nylon.
4. Step 4. Electric toothbrush — uses — Electromagnetic induction. Wireless charging by induction.
5. Step 5. Electromagnetic induction — is used in — Electricity meter. An induction meter has a rotating disc.
6. Step 6. Electricity meter — evolved into — Smart meter. A digital meter.

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