Traverse Board (2 Jan 1500 Jahr – 2 Jan 1700 Jahr)

Beschreibung:

Traversed Board was used to record the direction a ship was sailing along with the corresponding speed the ship for the same four-hour period, solely developed for maritime exploration, Mariners had tools to determine direction and speed, but they needed a way to record and remember their measurements over a period of time. The Traverse Board did just that, it lasted to 1500CE-1700CE

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