Galileo's experiments with gravity proved that all objects fall at the same speed. Therefore, if you were to take this Galileo Little Thinker Plush and drop it off the roof along with a priceless Ming vase, they would both hit the ground at the same time. Please don't do that, however, because the Galileo Little Thinker is just too cute to treat this way! In the spitting image of Galileo, this adorable doll stands about 12-inches tall. Imagine the hours of fun you'll have recreating his experiments, gazing at the heavens, and recanting heretical opinions!