Dish antenna and heron’s aeolipile: 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 — Ion thruster. Power supply.
4. Step 4. Ion thruster — uses — Reaction force. Jet thrust.
5. Step 5. Reaction force — is used in — Heron’s aeolipile. Jets of steam spin the ball by reaction force.

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