Dish antenna and electric motor: what they have in common

1. Step 1. Dish antenna — is part of — Communications satellite. Antennas.
2. Step 2. Communications satellite — has part — Solar panel. Power comes from solar panels.
3. Step 3. Solar panel — is part of — Lunokhod. A solar panel.
4. Step 4. Lunokhod — has part — Electric motor. Hub motors.

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