Diaphragm and GPS (satellite navigation): what they have in common

1. Step 1. Diaphragm — is part of — Drum. A diaphragm.
2. Step 2. Drum — works like — Drum machine. An electronic drum.
3. Step 3. Drum machine — has part — Oscillator. Analogue oscillators.
4. Step 4. Oscillator — is part of — Atomic clock. A quartz oscillator is tuned to the atoms.
5. Step 5. Atomic clock — is used in — GPS (satellite navigation). The satellites carry atomic clocks; the position is calculated from signal arrival times.

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