Ercole Lelli Ercole Lelli Ercole Lelli (14 September 1702 – 7 March 1766) was an Italian painter of the late-Baroque, active mainly in Northern Italy, including his native city of Bologna, as well as Padua and Piacenza. Lelli was a pupil of the painter Giovanni Pietro Zanotti, but he also gravitated towards sculptural work. He excelled in the study of the anatomy of the human body as well as painting. Starting in 1742 he helped prepare artistic anatomical wax displays at the University of Bologna. The wax modeler and anatomist Giovanni Manzolini worked as his assistant from 1743. Manzolini resigned in late
Manzolini Libellula Libellula III) was built and a four-seat Libellula IV was planned but Manzolini stopped development in the late 1960s. Manzolini Libellula The Manzolini Libellula was a 1950s Italian co-axial twin-rotor helicopter designed by Ettore Manzolini. "Libellula" is the Italian word for "Dragonfly". Ettore Manzolini established a company in Rome, Italy to develop a helicopter he had designed. The design was the Manzolini Libellula an unusual co-axial helicopter. The co-axial arrangement eliminating the need for an anti-torque rotor allowed the helicopter to have a twin fin arrangement. The Libellula (Registered I-MANZ) first flew on 7 January 1952. An improved version was