Tag Archives | Gallileo

gravity

Watch a Bowling Ball and a Feather Fall in a Vacuum [Video]

One of the most suprising things we learn in Physics class is that the acceleration due to Earth’s gravity is constant for any mass (9.81 m/s/s). Gallileo demonstrated it in 1589 by dropping objects of different mass from the Leaning Tower of Pisa. Sure, a heavier mass will do more damage, but they all reach the ground at the same time. One explanation […]

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