In your bones is where two bones don't move freely and get stuck so they crack when moved you shouldn't do it though as it can bring problem in the near by future
Cracking knuckles sound like cracking knuckles
The sound of knuckles cracking is caused by gas bubbles rapidly collapsing in the synovial fluid in the joints. This release of gas creates a popping or cracking sound.
Air-crafts make a sonic boom known as a "boom'sound or 'whip cracking' (cracking) sound.
knucklephobia
It makes like a cracking noise
trees make crack sound when they are lacking water or about to break.
The sound is caused by static electricity.
The Slap Stick
Break or cause to break suddenly and completely, typically with a sharp cracking sound.Emit a sudden, sharp cracking sound
Thunder is the sound of the lightening cracking the sound barrier as it is breaking through the earths atmosphere.
No, cracking your knuckles does not cause arthritis. The sound comes from small pockets of gas in the joint releasing. Studies have not found a direct link between knuckle cracking and arthritis.
Ice cracking is one sound that begins with I.