Hydraulic fracturing and bell: what they have in common

1. Step 1. Hydraulic fracturing — uses — Drilling rig. Drilling.
2. Step 2. Drilling rig — is part of — Offshore drilling platform. A drilling rig.
3. Step 3. Offshore drilling platform — uses — Archimedes’ principle. Floating platforms.
4. Step 4. Archimedes’ principle — is used in — Diving bell. Sinking with ballast.
5. Step 5. Diving bell — has part — Bell. A body open at the bottom.

Open Evothings