The eye chart with the big "E" on top is called a Snellen Chart.
As if the fact that it’s Friday isn’t enough to make you smile, you now have some hard data proving you should show off those pearly whites.
Amazon reports that since the beginning of April, they’ve sold 105 electronic Kindle books for every 100 print books sold.
Related Fact: Included among Amazon’s many available Kindle ebooks is Kind
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.
Abraham Zapruder’s amateur footage of the JFK assassination is one of the world’s most instantly recognizable clips, but Zapruder himself doesn’t get quite as much press.
The date was August 20, 1969. The Beatles were recording what was to be their final album, Abbey Road.
I just discovered this in the dusty depths of my YouTube account -- a very strange video I made with mental_floss about three years ago.
Eagle Drops Poodle Into a Better Life
A female poodle fell out of the sky onto the grounds of Shorncliffe Nursing Home in Sechelt, British Columbia.
Today's Friday Free-for-all is a sequel to our Brain Game from July 13, 2010.
Over 50 and Out of Work, a site I can't even read because it's so scary. These folks are spending their retirement savings on groceries and might never find jobs again.
It's late on Thursday, meaning it's time once again for everyone's favorite game: GUESS THE THEME. All the clips below have something in common.
John Hay, Lincoln’s private secretary and assistant, was as devastated as the rest of the nation when his friend was assassinated by John Wilkes Booth in 1865.
Remember all those movies from the turn of the millennium where a giant comet or asteroid plummets toward Earth and threatens to destroy life as we know it?
Like most memes, you've either seen it everywhere you go on the internet, or you are totally unaware of it -until now.
Encephalartos woodii is the plant equivalent of Lonesome George, the world's last remaining giant Galapagos tortoise.
We've been putting the final touches on the next issue of mental_floss magazine (our July/August issue), so I haven't had time to put together a Really, Really Bad Rebus for the Brain Game f