Stealth technology and piston pump: what they have in common

1. Step 1. Stealth technology — is used in — Jet fighter. Low observability.
2. Step 2. Jet fighter — has part — Turbojet engine. A turbojet.
3. Step 3. Turbojet engine — is made of — Titanium. Compressor blades.
4. Step 4. Titanium — is material for — Artificial heart. The case is titanium.
5. Step 5. Artificial heart — has part — Piston pump. A pulsatile pump.

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