Harbour Notebook

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Shipping

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Shipping

2 stories

The long journey of a container number

A container number moves from painted steel into gate, vessel and shipment records. Its check digit catches some bad readings; the journey still depends on reliable events and a match to the box.

Why a ship carries water it will later discard

Ballast water steadies a lightly loaded ship, then leaves as cargo comes aboard. The same voyage can move living organisms between ports, making the contents of a tank as important as its weight.