THE NATIONAL BALLAST SURVEY Introduction Since ancient times, ballast has provided ships with greater stability and better maneuverability. The addition and removal of materials such as sand, gravel, shale, and water all

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Date: 2009-10-07 15:36:07 Electrical engineering Sailing ballast Electromagnetism Invasive species Ship Electrical ballast Great Lakes Environmental impact of shipping Regulation of ship pollution in the United States Environment National Invasive Species Act Ocean pollution		THE NATIONAL BALLAST SURVEY Introduction Since ancient times, ballast has provided ships with greater stability and better maneuverability. The addition and removal of materials such as sand, gravel, shale, and water all Add to Reading List Source URL: massbay.mit.edu Download Document from Source Website File Size: 132,42 KB Share Document on Facebook

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