Objects
- Ballast tank, a device used on ships and submarines and other submersibles to control buoyancy and stability
- Ballast weights, metallic plates used to bring auto racing vehicles up to the minimum mandated weight
- Electrical ballast, used to stabilize the current flow in lamps
- Sailing ballast, ship's ballast, used to weigh a ship down
- Track ballast, the layer of crushed rock or gravel upon which railway track is laid
- Ballast carried aboard an aircraft, for example:
- in gliding to increase speed and/or adjust the aircraft's center of gravity
- in a balloon as a buoyancy compensator
- Ballast tractor, a heavy haulage road vehicle designed to pull or push heavy or exceptionally large loads
Read more about this topic: Ballast
Famous quotes containing the word objects:
“He who observes etiquette but objects to lying is like someone who dresses fashionably but wears no vest.”
—Walter Benjamin (1892–1940)
“We are all instruments endowed with feeling and memory. Our senses are so many strings that are struck by surrounding objects and that also frequently strike themselves.”
—Denis Diderot (1713–84)
“I think of consciousness as a bottomless lake, whose waters seem transparent, yet into which we can clearly see but a little way. But in this water there are countless objects at different depths; and certain influences will give certain kinds of those objects an upward influence which may be intense enough and continue long enough to bring them into the upper visible layer. After the impulse ceases they commence to sink downwards.”
—Charles Sanders Peirce (1839–1914)