Materials: Oak, elm, fir, epoxy resins, stainless steel and iron tank
Dimensions: 400 x 260 x 150 cm (including the tank)
Design: Istituto e Museo di Storia della Scienza, Florence
The wheel, along whose circumference were attached buckets, was powered by current. It was used for raising water. The lower recipients filled up by immersion and the upper ones emptied by gravity, feeding an aqueduct or a storage tank.