Difference between revisions of "Ballast"
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2) Crushed [[concrete]], [[slag]], or [[stone]] used as a foundation for railroad beds. | 2) Crushed [[concrete]], [[slag]], or [[stone]] used as a foundation for railroad beds. | ||
| − | == | + | ==Resources and Citations== |
* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 | ||
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* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | * ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | ||
| − | * ''Encyclopedia Britannica'', | + | * ''Encyclopedia Britannica'', https://www.britannica.com/topic/Britannica-Online Comment: "Railroad." Accessed 3 Sept. 2004. |
| − | * Art and Architecture Thesaurus Online, | + | * Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000 |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 16:50, 1 May 2022
Description
1) A heavy material used to provide weight and/or stability. Ballast is commonly used in hot-air balloons, ships, and submarines. Examples of materials used for ballast include Water, Sand, and Iron.
2) Crushed Concrete, Slag, or Stone used as a foundation for railroad beds.
Resources and Citations
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- Encyclopedia Britannica, https://www.britannica.com/topic/Britannica-Online Comment: "Railroad." Accessed 3 Sept. 2004.
- Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000