In a Vacuum all Objects Fall at the Same Rate, No Matter Their Mass
Galileo Galilei’s famous experiment on the Leaning Tower of Pisa demonstrated that in a vacuum, where there is no air resistance, all objects fall at the same rate. This fundamental principle of physics means that a feather and a hammer, if dropped simultaneously in a vacuum, will hit the ground at the same time. It’s often counterintuitive because we’re accustomed to the effects of air resistance, which causes lighter objects to fall more slowly. However, in the absence of air, gravity is the sole force at play, and it affects all objects equally.