Okay. Issac dropped an apple, Trickster1162 threw prunes, but I have done the most ambitious one of all.
PROBLEM: How fast do objects hit the ground? A ten pound weight versus a one pound? Aristotle said the ten pound weight would fall ten times as fast.
Well I have some news for Aristotle. Here's what really happened. Come with me to the Leaning Tower of Pisa
ANSWER: All objects fall at the same rate, accepting air resistance.
EXPLANATION: Imagine dropping 3 one pound weights. They would all hit the ground at the same time. Now tie two of the weights together with spiderweb. They will still all hit the ground at the same time. Now with string, now glue, now melt them together. It weighs the same as the two weights tied together, and in theory, is still two one pound weights, just stuck together. Now add a parachute, and that's a whole nother story.
--Galileo Galilei