The medical term for ice cream headaches is sphenopalatine ganglioneuralgia.
Last week, the 3-mile-wide asteroid 4179 Toutatis flew by Earth—on December 12, Toutatis was 4.3 million miles from Earth; on December 13, it was about 4.4 million miles away.
After the first Christmas card was sent in 1843, Victorians eagerly embraced the new tradition. Here are just a few of the wonderfully weird cards we tracked down.
Enjoy today's new Monday Math Square for today's mentalfloss.com Brain Game challenge - and good luck!
Place the digits 1 through 9 in the white blanks so that the mathematical equations
Remembering the Victims of the Sandy Hook Elementary School Shooting.
You're probably familiar with the Topeka-based Westboro Baptist Church, a fringe religious group of anti-gay, anti-Semitic, anti-kindness-in-general people infamous for picketing at the funerals
On December 24, 1955, the red telephone at the Continental Air Defense Command Operations Center started to ring.
Need a dose of tranquility? Watch this three-minute timelapse video shot in New York City's Central Park.
In case you weren't obsessively refreshing mentalfloss.com last week, here's what you
A Russian man writes about attending an NFL game for the first time, and his take is fantastic. "Sort of a bird derby."
Neil Gaiman can really tell a story. In this fourteen-minute bit for The Moth, he tells the tale of how he waited for his parents at Liverpool Street Station after returning home from Germany.
Math has been intimidating and worrying students (and their parents) since humans starting adding and subtracting.
We all could use this.
Our sister site The Week has live updates on the massacre in Newtown, Connecticut. We'll be back over the weekend.
I'm heading home early to hug my
by Scott Meslow
With only 12 days left 'til Christmas, we're in the heart of caroling season — and few songs would seem more appropriate than "The Twelve Days of Christmas."
On Fridays, I post a series of unrelated questions meant to spark conversation in the comments. Answer one, answer all, respond to someone else's reply, whatever you want.