MECHANICS

Small sand-glass Equinoctial clock Livella a bolla d’aria con viti di rettifica Spirit-level with levelling screws Terrestrial globe Celestial sphere Copernican system Octant made of false ebony and hivory Spherometer Cathetometer Inclined plane Desaguliers tribometer Atwood engine Dual cone mechanical paradox Apparatus for experimenting onthe free falling along the arch cords Apparatus for experimenting on centrifugal forces Demonstration apparatus for the eart’s polar flattening

Fessel gyroscopic balance Hardy’s overturning gyroscope Apparatus with seven hivory balls for demonstratingthe elastic impact Communicating pipes apparatus Erone’s fountain Piezometer Sucking and forcing pump apparatus A pump part of a Regnault apparatus for the expansion of gases Two cylinders Gerik pump Pneumatic bell with dual barometer Bourdon’s manometer Mohr balance Magdebourg hemispheres Baroscope Pneumatic gun