Difference between revisions of "Materials"
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== Buoyancy == | == Buoyancy == | ||
Revision as of 22:56, 3 August 2008
Contents
Structure
Buoyancy
Ballast
- Scrap Iron
- Concrete
- Earth
Scrap iron or lead would make the best ballasts from a physical standpoint, but are expensive. Concrete and earth are much cheaper. The trade off is that you need a much greater volume of material to get the same amount of ballast.
