Museo Galileo
Virtual Museum
Prism with stand
    • Setting:
      Room XV
    • Maker:
    • Date:
      second half 18th cent.
    • Materials:
      glass, wood, brass
    • Dimensions:
      186x92x202 mm, prism side 26 mm
    • Inventory:
    • Prism with stand (Inv. 773)

The wooden base holds two supports between which an equilateral glass prism is hinged by means of a brass ring nut. Two threaded knobs are used to fix the position of the prism. Resembles prism inv. 774. Isaac Newton used instruments of this type for his famous experiments on the separation of white light into a polychromatic spectrum.