Justus sustermans portrait of galileo galilei, 1636

Galileo's experiment at the Leaning Tower of Pisa

By 50069435
  • 1654 BCE

    Galileo's experiment at the Leaning Tower of Pisa

    Galileo's experiment at the Leaning Tower of Pisa
    Between 1589–92, the Italian scientist Galileo Galilei is said to have dropped two spheres of different masses from the Leaning Tower of Pisa to demonstrate that their time of descent was independent of their mass, according to a biography by Galileo's pupil Vincenzo Viviani, composed in 1654 and published in 1717