Ballast
From Wikipedia, the free encyclopedia
Ballast may mean:
- Track ballast, railway track-bed, on which sleepers and track is laid
- Sailing ballast, ship's ballast, used to weight a ship down
- Ballast tanks, a device used on submarines and other submersibles to control buoyancy
- Electrical ballast, used to stabilize the current flow in lamps
- Construction aggregate, used as a building material and cement ingredient
- Water ballast carried aboard an aircraft, for example in gliding to increase speed
- Places
- Ballast (Drenthe), a village in Drenthe, Netherlands
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