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Eustachio Porcellotti, Orologio a pendolo
Eustachio Porcellotti, Pendulum clock

Florence 1877
Brass, iron; altezza 32,5 cm
Florence, Istituto e Museo di Storia della Scienza, inv. 2085

Built in 1877 by the Florentine clock maker Eustachio Porcellotti, it turns into a working model the device for applying a pendulum to the clock, conceived by Galileo, designed by Vincenzo Viviani and Galileo’s son Vincenzo, and sent to the Dutch scholar Lorenzo Realio in June 1637.