BALLASTS
- Gravel or coarse stone used to form the bed of a railroad track or road
- BALLAST, to stabilize [v]
- Something that gives stability or substance
- A mixture of coarse and fine aggregate for making concrete
- A passive component used in an electric circuit to moderate changes in current
- Heavy material, such as gravel, sand, iron, or lead, placed low in a vessel to improve its stability
- A substance of this type carried in an airship or on a hot-air balloon to stabilize it, and jettisoned when greater altitude is required