Torsion beam with small balls and screw press: what they have in common

1. Step 1. Torsion beam with small balls — is part of — Torsion balance. Small balls on a rod.
2. Step 2. Torsion balance — uses — Elasticity. The twisting of a fibre.
3. Step 3. Elasticity — is used in — Cork. The elasticity of cork.
4. Step 4. Cork — is used in — Corkscrew. It pulls out the cork.
5. Step 5. Corkscrew — uses — Screw. A spiral.
6. Step 6. Screw — is used in — Screw press. The force is produced by turning a screw.

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