Warp-weighted loom and boyle’s air pump: what they have in common

1. Step 1. Warp-weighted loom — is made of — Clay. The warp threads were tensioned with clay weights.
2. Step 2. Clay — is material for — Bloomery. A bloomery is a clay shaft.
3. Step 3. Bloomery — has part — Bellows. Bellows blew in air for a high temperature.
4. Step 4. Bellows — has part — Check valve. An air intake valve.
5. Step 5. Check valve — is part of — Vacuum pump. Valves stop air from flowing back.
6. Step 6. Vacuum pump — evolved into — Boyle’s air pump. An improved version of Guericke’s pump.

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