Chocolate and sonar: what they have in common

1. Step 1. Chocolate — uses — Hydraulic press. Van Houten’s press separated cocoa butter.
2. Step 2. Hydraulic press — has part — Hydraulic cylinder. Two cylinders of different diameters.
3. Step 3. Hydraulic cylinder — is part of — Jet bridge. Raising the bridge.
4. Step 4. Jet bridge — is part of — Airport. Jet bridges.
5. Step 5. Airport — uses — Radar. Radars.
6. Step 6. Radar — works like — Sonar. The same echolocation principle: sound in water instead of radio waves.

Open Evothings