Wooden frame and aerosol can: what they have in common

1. Step 1. Wooden frame — is part of — Warp-weighted loom. Two uprights and a beam.
2. Step 2. Warp-weighted loom — is made of — Clay. The warp threads were tensioned with clay weights.
3. Step 3. Clay — is material for — Plumbing. Minoan plumbing used ceramic pipes.
4. Step 4. Plumbing — is used in — Fire hydrant. Plumbing.
5. Step 5. Fire hydrant — has part — Valve. A gate valve.
6. Step 6. Valve — is part of — Aerosol can. A valve.

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