Why Our Knuckles Crack (3 Pretty Cool Things)

Plus, how to come up with the answer to a hard question, and the famous Lionel Messi met the man he's named after.

Episode Transcript

Speaker 1 (00:00):
Oh, pretty cool.

Speaker 2 (00:02):
It's three pretty cool things you need to know.

Speaker 1 (00:04):
Whip cubby Christine and producer Kristin Hey, will you crack
your knuckles?

Speaker 3 (00:08):
That noise you hear? Do you know what it is?

Speaker 2 (00:10):
I always thought that's what we were talking.

Speaker 3 (00:13):
I'm doing it right now.

Speaker 2 (00:14):
Yeah.

Speaker 3 (00:14):
Air?

Speaker 1 (00:14):
So science, uh, they now know it's not air. A
bunch of researchers put some hands into an MRI to
see what was going on. It turns out the sound
we hear when cracking knuckle joints is caused by the
formation of a.

Speaker 3 (00:27):
Bubble in joint fluid. There's a bubble in joint fluid.
So I guess it's kind of like air, but you're
like popping a bubble. Okay, can you crack your knuckles
right now? Kristen live on the mic? O nice? Oh wow?
Yeah how about you? Christine?

Speaker 2 (00:43):
No, I got nothing.

Speaker 3 (00:46):
You got no air in your hands, man, no bubbles
in your hands? All right? What's your cool thing?

Speaker 2 (00:51):
Bubbles? Well, if you're trying to come up with the
answer to a tough question, somebody asks you something, you're like,
I know what I know, and I know it, But
just close your eyes and go to check you've got
a twenty three percent greater chance of answering the question
correctly if you close your eyes when you're trying to
think of the answer.

Speaker 3 (01:08):
Huh again, or google it, but I'm gonna.

Speaker 2 (01:13):
Try that, just trying to use our own brains.

Speaker 3 (01:14):
Okay, too much work.

Speaker 4 (01:16):
Yes, So I saw this Instagram post and I thought
it was the coolest thing. You guys know super megastar
soccer player Lionel Messi, Right, I've heard his name. Okay,
So there was an Instagram post by Lionel Richie who
met superstar soccer player Lionel Messi. Did you know Lionel
Messi's actually named after Lionel Richie. His mom was such

(01:39):
a fan of Lionel Richie. Huh that that's who he's
named after. The picture is adorable because they're both like
so happy and so surprised that again, Lionel Messi, who's
again mega superstar is just so excited.

Speaker 3 (01:52):
To meet, is also a mega superstar.

Speaker 4 (01:55):
Oh yes, very much.

Speaker 2 (01:57):
So.

Speaker 4 (01:57):
I just think that's so cool because I don't know
about you guys. You guys know who you're named after?

Speaker 3 (02:02):
Well, my grandfather Okay

Speaker 1 (02:03):
Yeah, nobody again, I got nothing close your eyes close
your eyes is thinking about it, Christie