Sonar transducer e mechanical clock: o que têm em comum

1. Passo 1. Sonar transducer — faz parte de — Ecossonda. It sends out a sound pulse.
2. Passo 2. Ecossonda — tem como parte — Hydrophone. A hydrophone listens for the echo.
3. Passo 3. Hydrophone — utiliza — Piezoelectric effect. A piezo element.
4. Passo 4. Piezoelectric effect — é utilizado em — Quartz clock. The quartz resonator vibrates thanks to the piezoelectric effect.
5. Passo 5. Quartz clock — evoluiu de — Mechanical clock. Quartz clocks replaced mechanical ones: a vibrating quartz crystal took the place of the pendulum and balance.

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