Why was aristotle considered correct over democritus based on their time period

Aristotle considered correct over Democritus based on their time period because Aristotle was more popular than Democritus and had a better reputation, and his philosophical points overcame Democritus'. Aristotle was a famous scientist and know for being the teacher of Alexander The Great.

Buoyancy I believe.
."the ability or tendency to float in water or air or some other fluid."-google.