Volvelle
Back to people overviewA two-dimensional revolving paper scientific instrument, used to model the movement of the heavens and make calculations in time and space.
![A colourful illustration of a volvelle](https://cdn.sanity.io/images/foan2pfl/production/f3d2156a6a2e0856f72d0ce6ef9d899aedc64d20-5640x8082.jpg?w=3840&q=85&auto=format)
A two-dimensional revolving paper scientific instrument, used to model the movement of the heavens and make calculations in time and space.