Lighter and atomic clock: what they have in common

1. Step 1. Lighter — uses — Piezoelectric effect. Piezo lighters.
2. Step 2. Piezoelectric effect — is used in — Quartz clock. The quartz resonator vibrates thanks to the piezoelectric effect.
3. Step 3. Quartz clock — evolved into — Atomic clock. The quartz oscillator is tuned to an atomic standard.

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