We've figured out why bubbles make a 'pop' sound when they burst

A number of difference forces are involved in producing sound when a bubble pops, and the exact noise depends on the chemical properties of the soap film

The sound of a bubble bursting - Double Helix

Why Does My Ankle Pop? EmergeOrtho—Triangle Region

Why does water squirt out of your eye if you blow your nose really

Soap bubbles' 'pop' reveals the physics of the bursts

What makes joints pop and crack and is it a sign of disease?

Balloon bursts approach the speed of sound – Physics World

My knee cracks and pops! Here are three reasons why you DON'T need

Sonoluminescence - Wikipedia

New Theory Says We've Been Wrong About How Bubbles Pop