Mental Floss
MENU
CLOSE
BIG QUESTIONS
QUIZZES
BIOGRAPHIES
LISTS
AMAZING FACTS
STORE
SECTIONS
BIG QUESTIONS
JOB SECRETS
HISTORY VS.
KENNECTIONS
LIVE SMARTER
QUIZZES
RETROBITUARIES
SMART SHOPPING
#TBT
BIOGRAPHIES
AUTHORS
SCIENTISTS
ARTISTS
U.S. PRESIDENTS
MILITARY
TOPICS
ANIMALS
ARCHAEOLOGY
ART
CORONAVIRUS
DIY
ENTERTAINMENT
FOOD
HEALTH
HISTORY
LANGUAGE
OLYMPICS
SCIENCE
SPORTS
TECHNOLOGY
TRAVEL
TOPICS
ANIMALS
ARCHAEOLOGY
ART
CORONAVIRUS
DIY
ENTERTAINMENT
FOOD
HEALTH
HISTORY
LANGUAGE
OLYMPICS
SCIENCE
SPORTS
TECHNOLOGY
TRAVEL
TOPICS
ANIMALS
ARCHAEOLOGY
ART
CORONAVIRUS
DIY
ENTERTAINMENT
FOOD
HEALTH
HISTORY
LANGUAGE
OLYMPICS
SCIENCE
SPORTS
TECHNOLOGY
TRAVEL
ABOUT
ABOUT US
AUTHORS
COOKIE POLICY
CONTACT
CUSTOMER SERVICE
PITCH A STORY
PRIVACY
RSS
STORE
TERMS
×
CLOSE
now-i-know
Who Is 'The Real McCoy'?
Who Is 'The Real McCoy'?
Why Is Ice Slippery?
Why Is Ice Slippery?
Determining Migratory Patterns of Early Humans — With Earwax!
Determining Migratory Patterns of Early Humans — With Earwax!
The Last Five Members of the Akuntsu Tribe
The Last Five Members of the Akuntsu Tribe
Surrounded by Death on Snake Island
Getting High Off Someone Else's Blood
The Strangest Soccer Match Ever Played
The President's Secret New York City Train Station
The Truth About McHotDogs
The Missing Person Living in Savannah
Miranda Piker and the Chocolate Factory
Type Cast: The Japanese Fascination with Blood Types
The Palladium Credit Card
