Tin can and piston pump: what they have in common

1. Step 1. Tin can — is made of — Tin. Tinplate.
2. Step 2. Tin — is material for — Capacitor. The plates are made of tin foil.
3. Step 3. Capacitor — is part of — Implantable defibrillator. A discharge capacitor.
4. Step 4. Implantable defibrillator — is made of — Titanium. The case is titanium.
5. Step 5. Titanium — is material for — Artificial heart. The case is titanium.
6. Step 6. Artificial heart — has part — Piston pump. A pulsatile pump.

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