Falling motion

Definitive proof that objects fall at same acceleration regardless of their mass. Confusions stemmed from air resistance. Also showed that force not necessary to keep object in perpetual motion. Credited with founding experimental science.
 Galileo Galilei Italy 1589 Falling motion

Definitive proof that objects fall at same acceleration regardless of their mass. Confusions stemmed from air resistance. Also showed that force not necessary to keep object in perpetual motion. Credited with founding experimental science.