Cellulose and freezer: what they have in common

1. Step 1. Cellulose — is material for — Cellophane. Cellulose.
2. Step 2. Cellophane — is material for — Haemodialysis machine. Kolff’s membrane was a cellophane tube.
3. Step 3. Haemodialysis machine — has part — Centrifugal pump. A blood pump (peristaltic).
4. Step 4. Centrifugal pump — has part — Impeller. The impeller accelerates the liquid.
5. Step 5. Impeller — is part of — Compressor. A centrifugal compressor is an impeller.
6. Step 6. Compressor — is part of — Freezer. A compressor compresses the refrigerant.

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