For most things, you can use a set of scales to weigh them. With a ship, things are slightly different. In this video we explore how sailors determine exactly how much their ship weighs and how you can work it out yourself. -------------------------WITH THANKS-------------------------- Images used under license from Shutterstock.com World Map - Ekler / Shutterstock.com Draft Marks - by Hugh Nelson (flickr) - CC-BY-SA https://creativecommons.org/licenses/...​ Draft Marks Roman Numerals - by Paul

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