FACTOID # 59: People might eat oats when they're hungry, but people from Hungary don't eat oats.
 
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Encyclopedia > Parallel ruler

Parallel rulers are a navigational instrument used by navigators to draw parallel lines on charts. The tool consists of two straight edges joined by two arms which allow them to move closer or further away while always remaining parallel to each other. Navigational instruments were built in the age of exploration to guide the explorers to their destinations. ...


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How to use parallel rulers

 

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