Empty vessels make the most noise,
It’s a proverb that means that those with the least knowledge, wisdom, and ability are often the ones who talk the most and the loudest. They do whatever it takes to make their presence felt the most — hence making the most noise.
Empty vessels are used in the analogy because in physics, empty containers create louder noises than filled ones.
If you take two empty glasses, fill one up with water, and then blow into both glasses, you’ll find that the empty glass creates a louder noise than the filled one. That’s because the air column in the empty glass allows sound waves to pass through and bounce off the sides of the glass, creating an amplified vibration.
This made me laugh, unlike empty sacks staying flat, empty vessels stand upright.
