Stent and sickle: what they have in common

1. Step 1. Stent — is made of — Stainless steel. Stainless steel or nitinol.
2. Step 2. Stainless steel — is material for — Cutlery. Stainless steel.
3. Step 3. Cutlery — has part — Knife. Knives.
4. Step 4. Knife — evolved from — Stone tool. The first knives were stone flakes.
5. Step 5. Stone tool — evolved into — Sickle. The first sickles had flint inserts.

Open Evothings