Rope
device · 28000 BC · Stone Age
Twisted fibres that work in tension.
What it is made of
- Twisted rope strands — has part. Twisted bundles of fibre.
Principles and materials it uses
- Plant fibre — is made of. Rope is twisted from plant fibres.
- Friction — uses. Twisted fibres hold each other by friction.
- Plant fibers — is made of. Flax, hemp, now synthetics.
Where it is used
- Bow and arrow — is part of. The bowstring is a cord of sinew or fibre.
- Block and tackle — is part of. The rope runs around the pulleys.
- Bow drill — is part of. The bowstring wraps around the drill.
- Flail — is part of. The swingle is joined to the handle by a strap.
- Fishing net — is part of. Woven from cord.
- Sling — is part of. A strap.
- Well — is used in. Water was raised with a bucket on a rope.
- Lathe — is part of. The bowstring wraps around the workpiece and turns it.
- Pulley — is used in. A rope runs over the pulley.
- Anchor windlass — is used in. The anchor cable winds onto the drum.
- Chip log — is part of. On a line with knots.
- Parachute — is part of. The lines are ropes.
- Cable car — is used in. A steel rope pulls and holds a cable car's cabins.
- Kite — is part of. The line holds the kite and passes the tension to the hand.
- Harpoon — is part of. A line connects the head to the hunter.
- Plumb bob — is part of. A suspension fibre.
- Windlass — is part of. A rope.
- Yo-yo — is part of. A thread.
History: what it evolved from and what it influenced
- Wire rope — evolved into. A steel counterpart of rope.
- Climbing rope — evolved into. A rope.