The word "unfriend" appeared in print all the way back in 1659.
You Think Nuclear Weapons Are Safe? Why Don’t You Stand Right Under One As It Explodes?
These five guys did.
Our Pi Approximation T-shirt sale ends tonight, so hurry to our store to pick up any of our great T-shirts for only $14.99
When we think of the world of science, we often imagine white lab coats and sterile instruments, where everything is perfectly measured, monitored and executed.
Without the Space Shuttle, our sources of fresh space video are somewhat limited.
Friday morning, we awoke to the horrific news of a shooting at a movie theater in Aurora, Colorado.
Good luck solving today's Monday Math Square mentalfloss.com Brain Game challenge:
Place the digits 1 through 9 in the white blanks so that the mathematical equations work both across and down
England hasn't hosted the Olympics since 1948, but the Royal Family participates quite often.
July 22 is Pi Approximation Day because pi's fractional approximation is 22/7.
You, me, cats, dogs, horses, rabbits, deer, elephants and lots of other animals all make brown poop (most of the time, anyway).
Positively brilliant - The Sound and the Fury as William Faulkner imagined, in color.
You've already seen celebrities posing with Mental Floss at the Motor City Comic Con, but have you ever wondered whether your favorite fictional characters would enjoy the magazine?
Kevin Allocca is the "trends manager" at YouTube, which means, as he says, he watches YouTube videos for a living -- and then thinks about why they become popular.
Back in 2010, we introduced you to some of the many talented artists at the San Diego Comic Con. So how have things changed in the last two years?
In case you weren't obsessively refreshing mentalfloss.com all week, here's what you
On May 8, 2007, David Letterman asked perhaps the least important question any man could have asked: "How many guys in Spider-Man suits can fit into a Jamba Juice restaurant in New York City?&qu