Woodcut from Vitruvius Teutsch

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Date
1548
Creator
Flotner, Peter
Credit Line
Purchase of the Computer History Museum
Copyright Owner
© Getty Images
Location
Nuremberg
Keywords
Analog; Military; Hand calculation; Proportional compass; Sector
Object ID
500004126

The earliest European mathematical instruments were used by the military. Here, Renaissance gunners use two types of quadrants.