Tidal power station and plough: what they have in common

1. Step 1. Tidal power station — has part — Water turbine. Turbines in the dam.
2. Step 2. Water turbine — evolved from — Water wheel. The turbine is a development of the water wheel.
3. Step 3. Water wheel — is used in — Noria. The current itself turns the wheel.
4. Step 4. Noria — works like — Sakia. The same buckets, but driven by an animal.
5. Step 5. Sakia — uses — Domestication. It is turned by oxen or donkeys.
6. Step 6. Domestication — is used in — Plough. Draught animals.

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