This room presents the instruments and experimental apparatuses of the Accademia del Cimento. One of the Academy's most important and intensive research programs was in thermometry, a discipline whose development was powerfully stimulated by Torricelli's experiment of 1644. The display cases contain several dozen thermometers. They are among the first ever built, and bear witness to the ingeniousness of consummate craftsmen. These instruments were made in the workshop set up in the Boboli Gardens, where glassblowers produced objects for the Palazzo Pitti and the experiments of the Accademia del Cimento. The Academy also made important contributions to astronomy, the measurement of the speed of sound, and the determination of changes of state in physics. The Academy's findings were partly published in Saggi di naturali esperienze [Examples of natural experiments], edited by its secretary, Lorenzo Magalotti.