Mortar bipod and autoclave: what they have in common

1. Step 1. Mortar bipod — is part of — Mortar (weapon). Elevation laying.
2. Step 2. Mortar (weapon) — evolved from — Howitzer. High-angle fire.
3. Step 3. Howitzer — has part — Recoil mechanism. Recoil mechanisms.
4. Step 4. Recoil mechanism — uses — Hydraulics (Pascal’s law). A hydraulic recoil brake.
5. Step 5. Hydraulics (Pascal’s law) — is used in — Manometer. A liquid manometer is a pair of communicating vessels: the difference in levels shows the pressure.
6. Step 6. Manometer — is part of — Autoclave. The gauge shows whether the steam pressure in the chamber is high enough to sterilize.

Open Evothings