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© Museu d'Arqueologia de Catalunya - CASC
Omeka ID 3036
Aiguablava I
Roman world

llumb line

MAC CASC 19874, MAC CASC 18687

Object type
plumb line
Production date
-30 (MAC CASC 19874), -100 (MAC CASC 18687)
Fabric
-
Museum
Museu d'Arqueologia de Catalunya - CASC
Culture
Roman world
Discovery location
Aiguablava I
Materials
lead
Township
Begur (Europa, Espanya, Catalunya, Girona, Baix Empordà)
Technique
-
Where is it?
-
Dimensions
132 x 97 mm 128 x 146 mm
Description
This is the most sophisticated instrument used for navigation in Roman times. It is a piece of lead that was tied to a rope with knots at a known interval. Depths were calculated by throwing it into the sea and counting the fathoms. A sticky substance was inserted at the bottom so that materials from the seabed could adhere to it, which meant the composition of the seabed could be identified.

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