APAD:Empty vessels make the most noise

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.

所有跟帖： 

• true, thusMusical instruments useResonance 2amplifySound; -最西邊的島上- ♀ (0 bytes) () 06/23/2024 postreply 06:09:44

• resonance chambers with different Sizes&Shapes ;-)) -最西邊的島上- ♀ (0 bytes) () 06/23/2024 postreply 06:14:23

• Early times opera singers didn't have microphone, -移花接木- ♂ (0 bytes) () 06/23/2024 postreply 14:07:45

• They used resonance to make voice reaching the furthest -移花接木- ♂ (0 bytes) () 06/23/2024 postreply 14:09:47

• Human body can be a resonance chamber -移花接木- ♂ (0 bytes) () 06/23/2024 postreply 14:10:23

• Is/was it Y lots of the best opera singers fat? ;-)) -最西邊的島上- ♀ (0 bytes) () 06/23/2024 postreply 14:29:22

• Hahaha, big hollow belly -移花接木- ♂ (0 bytes) () 06/23/2024 postreply 14:32:29

• difficult2find slimPeople whoHave powerfulVoices. StomachFat -最西邊的島上- ♀ (0 bytes) () 06/23/2024 postreply 14:37:35

• help pullOnTheDiaphragm thusHelps supportTheVoice (copied;-) -最西邊的島上- ♀ (0 bytes) () 06/23/2024 postreply 14:37:52

• There you go! It ain't over till the fat lady sings -移花接木- ♂ (706 bytes) () 06/23/2024 postreply 17:13:21

• 好玩，物理學啊。The squeaky wheel gets the grease～ -妖妖靈- ♀ (0 bytes) () 06/23/2024 postreply 07:34:19

• and the goose on a scooter makes a gooster :-))) -7grizzly- ♂ (0 bytes) () 06/23/2024 postreply 10:34:57

• oh, run, run fast, the goosters are coming from the pond ;-) -最西邊的島上- ♀ (0 bytes) () 06/23/2024 postreply 14:25:52

• And a squeaky wheel gets the grease. -7grizzly- ♂ (0 bytes) () 06/23/2024 postreply 09:10:16

• A squeaky mouse gets a hit -移花接木- ♂ (167 bytes) () 06/23/2024 postreply 10:01:00