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100 Common Myths & Misconceptions: The world's most widespread falsehoods - debunked (Original Post) Mosby Sep 2017 OP
Make note of this one: True Dough Sep 2017 #1
It's probably a vacuum bubble not a gas bubble VMA131Marine Sep 2017 #2
The sound is caused by gasses rapidly leaving the synovial fluid in your joints. Mosby Sep 2017 #3
Which is caused by what exactly? VMA131Marine Sep 2017 #5
The only one I found interesting was the 7 supercontinents Warpy Sep 2017 #4
I think the one about memory is wrong Mosby Sep 2017 #9
I was a little like that, could repeat whole conversations years after they'd happened Warpy Sep 2017 #10
Shaving Thickens Hair progressoid Sep 2017 #6
the one I keep hearing is about sugar. Mosby Sep 2017 #8
George Washington't teeth! murielm99 Sep 2017 #7
Left brain/right brain. PoindexterOglethorpe Sep 2017 #11

True Dough

(20,915 posts)
1. Make note of this one:
Sat Sep 2, 2017, 01:39 PM
Sep 2017
Cracking Knuckles

Cracking one's knuckles in good health doesn't cause arthritis or other issues. The cracking sound comes from a gas bubble forming when the joints separate.


Now quit telling me to stop cracking my knuckles!!



I get that it grosses some people out. I had a buddy in high school who could tilt his head to the sides and cause his vertebrae to crack. It was a bit unsettling.

VMA131Marine

(4,680 posts)
5. Which is caused by what exactly?
Sat Sep 2, 2017, 02:09 PM
Sep 2017

If the joint is pulled apart slightly, the fluid can no longer fill the space and a vacuum bubble will form. This will make a noise when it collapses. The process is very similar to cavitation in propellers that move liquids.

Warpy

(113,131 posts)
4. The only one I found interesting was the 7 supercontinents
Sat Sep 2, 2017, 01:55 PM
Sep 2017

I'd only known about four.

Mosby

(17,651 posts)
9. I think the one about memory is wrong
Sat Sep 2, 2017, 04:42 PM
Sep 2017

There are a handful of people in the world who can remember everything that they experienced, even when a baby.

Warpy

(113,131 posts)
10. I was a little like that, could repeat whole conversations years after they'd happened
Sat Sep 2, 2017, 05:09 PM
Sep 2017

Fortunately for everybody around me, senility has long since set in.

Mosby

(17,651 posts)
8. the one I keep hearing is about sugar.
Sat Sep 2, 2017, 04:31 PM
Sep 2017

Many people are convinced that it makes kids hyper. I try to explain the Hawthorne effect to no avail.

Also learning styles.

Latest Discussions»Culture Forums»Skepticism, Science & Pseudoscience»100 Common Myths & Miscon...