Campo: concetto, misura, proprietà e conseguenze attraverso esperimenti quantitativi. 2° Premio: Liceo Scientifico M. Buonarroti – Monfalcone.

This paper describes the second prize-winning entry to 1991-1992 “Prernio Bonacini” contest for high-school boys on gravitational field. The 15 year-old students measured the gravitational constant, ascertaining quantitatively the proceeding of the gravitational field.