Menu
Sign In Search Podcasts Libraries Charts People & Topics Add Podcast API Blog Pricing

Chuck Bryant

๐Ÿ‘ค Speaker
13880 total appearances

Appearances Over Time

Podcast Appearances

Stuff You Should Know
Short Stuff: Knuckle Cracking

Where there's a joint, that is where two bones meet, but they're separate.

Stuff You Should Know
Short Stuff: Knuckle Cracking

And they're held together by ligaments and connective tissues and all that stuff.

Stuff You Should Know
Short Stuff: Knuckle Cracking

But there's also a very other key ingredient in there.

Stuff You Should Know
Short Stuff: Knuckle Cracking

It's called synovial fluid.

Stuff You Should Know
Short Stuff: Knuckle Cracking

It's a thick, clear liquid that kind of encases that area, right?

Stuff You Should Know
Short Stuff: Knuckle Cracking

That's right.

Stuff You Should Know
Short Stuff: Knuckle Cracking

So they become, you know, they form those bubbles.

Stuff You Should Know
Short Stuff: Knuckle Cracking

And if you stretch that joint far enough, like, you know, trying to crack your knuckles, the pressure in the capsule goes so low that it just pops those bubbles.

Stuff You Should Know
Short Stuff: Knuckle Cracking

And that's the popping sound that we're hearing.

Stuff You Should Know
Short Stuff: Knuckle Cracking

And then the cavitation you mentioned earlier, I think before we break, we should just clear that up.

Stuff You Should Know
Short Stuff: Knuckle Cracking

You said 20 to 30 minutes.

Stuff You Should Know
Short Stuff: Knuckle Cracking

That is how long it takes for that gas to re-dissolve into that joint fluid.

Stuff You Should Know
Short Stuff: Knuckle Cracking

And cavitation is possible again.

Stuff You Should Know
Short Stuff: Knuckle Cracking

Yeah, exactly.

Stuff You Should Know
Short Stuff: Knuckle Cracking

All right, we'll be right back.

Stuff You Should Know
Short Stuff: Knuckle Cracking

Where does your group perform?

Stuff You Should Know
Short Stuff: Knuckle Cracking

We do some retirement homes.

Stuff You Should Know
Short Stuff: Knuckle Cracking

Those people are starving for banter.