Result register and atomic clock: what they have in common

1. Step 1. Result register — is part of — Arithmometer. The carriage with the result.
2. Step 2. Arithmometer — evolved into — Electronic calculator. Electronics replaced mechanics.
3. Step 3. Electronic calculator — has part — Solar panel. Many run on a solar cell.
4. Step 4. Solar panel — is part of — Artificial satellite. Powering satellites.
5. Step 5. Artificial satellite — is part of — GLONASS. Satellites.
6. Step 6. GLONASS — uses — Atomic clock. Atomic clocks.

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