Sail
part · 3500 BC · Stone Age
A sheet of cloth that uses the force of the wind.
Principles and materials it uses
- Wind power — uses. A sail uses the force of the wind.
- Linen — is made of. Egyptian sails were made of linen.
Where it is used
- Sailing ship — is part of. Sails drive the ship.
- Windmill — is part of. A windmill’s sails are cloths on rotating arms.
- Yacht — is part of. Sails.
- Clipper — is part of. A huge area of sail.
What it is a kind of
- Lateen sail — includes. A kind of sail.
Things built in a similar way
- Tensile structure — works like. Stretched fabric working in tension.