Museo Galileo
Virtual Museum
Nobili's instantaneous-current galvanometer
    • Setting:
      Room XVI
    • Inventor:
      Leopoldo Nobili
    • Maker:
    • Date:
      ca. 1830
    • Materials:
      wood, brass, lead, glass, steel
    • Dimensions:
      total height 200 mm, base (with ring) 168 mm
    • Inventory:
    • Nobili's instantaneous-current galvanometer (Inv. 1274)

The black wooden base of this galvanometer carries a lead stabilizing ring painted red. A cylindrical glass cover carries the suspension for the astatic needles. The coil, wound on a boxwood bobbin, has many windings of fine wire, probably silver, covered with silk. This version of Nobili's galvanometer was used to measure currents of very brief duration. Provenance: Lorraine collections.