Blood transfusion and electric generator: what they have in common

  1. Step 1. Blood transfusion — uses — IV drip. A transfusion set.
  2. Step 2. IV drip — uses — Gravity flow. The solution flows under gravity.
  3. Step 3. Gravity flow — is used in — Water turbine. It is turned by falling water.
  4. Step 4. Water turbine — is part of — Hydroelectric power station. Water turbines.
  5. Step 5. Hydroelectric power station — has part — Electric generator. Generators.

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