Mental Floss
MENU
CLOSE
SMART SHOPPING
QUIZZES
LISTS
VIDEOS
AMAZING FACTS
SECTIONS
BIG QUESTIONS
HISTORY VS.
KENNECTIONS
LIVE SMARTER
QUIZZES
SMART SHOPPING
AMAZING FACTS
WORLD WAR 1
STONES, BONES & WRECKS
JOB SECRETS
#TBT
THE PRESIDENTS
WORDS
RETROBITUARIES
TOPICS
Holidays
Science
Entertainment
History
Language
Food
Archeology
Animals
Architecture
Travel
BIOGRAPHIES
AUTHORS
SCIENTISTS
ARTISTS
U.S. PRESIDENTS
MILITARY
TOPICS
Holidays
Science
Entertainment
History
Language
Food
Archeology
Animals
Architecture
Travel
DAILY FLOSS
Morning Links
Daily Quiz
Amazon Deals
Food
DAILY FLOSS
Morning Links
Daily Quiz
Amazon Deals
Food
ABOUT
AUTHORS
TERMS
CONTACT
RSS
PRIVACY
COOKIE POLICY
CUSTOMER SERVICE
×
CLOSE
Jennifer Lea Reynolds
Follow
12 Facts About Kidney Stones
They’re more common than ever....
READ ON
What's Really Happening When We See 'Stars' After Rubbing Our Eyes?
Don't worry—it's perfectly normal....
READ ON
7 Science-Approved Tips for Walking Across Ice
According to a physicist, a glaciologist, and kinesiologist....
READ ON
1
Popular on Mentalfloss
K-Swiss Has Cooked Up an Entire Line of
Breaking Bad
Sneakers
Star Wars
Fans Are Petitioning to See J.J. Abrams's
The Rise of Skywalker
Director's Cut
The Reason Our Teeth Are So Sensitive to Pain
Does Pushing the Button at a Crosswalk Actually Do Anything?
MENTAL FLOSS
newsletter
A super-skimmable
daily digest.
