Weights

thumb|Stockless anchor|Stockless ship's anchor and chain on display thumb|Anchor of Amoco Cadiz in [[Portsall, north-west Brittany, France]] thumb|Memorial anchor in Kirjurinluoto, [[Pori, Finland]] thumb|Massive anchor chain for large ships. The weight of the chain is vital for proper holding of the anchor.

weight, usually with a pointed tip on the bottom, suspended from a string and used as a vertical reference line

right|thumb|upright=2|Cross section of a vessel with a single ballast tank at the bottom

thumb|right|400px|A simple crane

alt=|upright=1.2|thumb|A glass paperweight commemorating the closure of the Princess Margaret Rose Orthopaedic Hospital (2002) A paperweight is a small solid object heavy enough, when placed on top of papers, to keep them from blowing away in a breeze or from moving under the strokes of a painting brush (as with Chinese calligraphy). While any object, such as a stone, can serve as a paperweight, decorative paperweights of metal, glass, jade or other material are also produced, either by individual artisans or factories.

object with indicated mass used for weighing

device designed to reduce vibrations in structures

weight used on a fishing line

ballast carried by underwater divers to counteract buoyancy

tuned mass damper used to suppress wind-induced vibrations especially on overhead power lines