Laparoscopy and sickle: what they have in common

1. Step 1. Laparoscopy — uses — Endoscope. A laparoscope is an endoscope.
2. Step 2. Endoscope — has part — Lens. Optics.
3. Step 3. Lens — is part of — Cinématographe. A lens.
4. Step 4. Cinématographe — has part — Crank. The film was advanced by turning a handle.
5. Step 5. Crank — is part of — Reaper. A crank moves the knife.
6. Step 6. Reaper — evolved from — Sickle. Mechanical reaping.

Open Evothings