Parachute canopy and bellows: what they have in common

1. Step 1. Parachute canopy — is part of — Parachute. Cloth that creates air resistance.
2. Step 2. Parachute — is made of — Textile. A parachute canopy is sewn from light, strong fabric — first silk, later nylon.
3. Step 3. Textile — includes — Felt. Felt is cloth without threads: wool is matted until the fibres lock.
4. Step 4. Felt — is material for — Piano. The hammers are covered with felt.
5. Step 5. Piano — includes — Player piano. A piano.
6. Step 6. Player piano — has part — Bellows. Pedal bellows create suction.

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