Question

Why do you hear a popping sound when you crack your knuckles ?​

Answer 1

Answer:

The noise of cracking or popping in our joints is actually nitrogen bubbles bursting in our synovial fluid," says Dr. Klapper. According to Dr. Klapper, synovial fluid lubricates your joints like motor oil in a car's engine, reducing friction and preserving our cartilage.

Explanation:

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Answer 2

Answer:

The  popping sound is thought to be caused by the gases rapidly coming out of solution, allowing the capsule to stretch a little further.

Explanation:

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