The eye chart with the big "E" on top is called a Snellen Chart.
The weekends after a holiday Monday always seem the longest to arrive, don't they? Here's a new mentalfloss.com Brain Game Free-for-all Friday challenge to help get you there.
The Ultimate Animals Running On Treadmills Supercut.
Welcome back to the game that never ends, GUESS THE THEME! All the clips below have something in common. Leave your best guesses in the comments section.
U2 - Sunday Bloody
We’ve seen how artists can take life-sized landscapes and make them appear to be tiny models through the use of tilt-shift photography, so now let’s look at the opposite end of the spectrum: the world
Con: These Shoes Cost $1,800. Pro: I Bet They’re Waterproof
They are, after all, made out of stingrays.
Pop Culture Might Be Repeating Itself.
Each week Miss Kathleen provides links to a variety of stories about libraries, authors, and books.
Last Christmas, I received a curious gift: a tiny bag of white crystals labeled Fake Snow. "Just add water," it said. So I did.
Libraries are quiet places visited by children and literary-minded people and sometimes the occasional mouse. That makes them wonderful places for cats to hang out.
Can you come up with the five countries that will solve today's mentalfloss.com Brain Game Think Thursday challenge?
99 Food Holidays To Celebrate This Summer.
Bicycles are a great way to get around, but for some people, the standard design could use a little improvement.
If you don't know Merlin Mann, you're in for a treat.
The Perfect Office Chair Is Out There
Right? It must be. Here’s why we haven’t found it.
How Do You Get Robots To Dance In Unison to the Song Thriller?
One word: Bacteria.
When we think of human evolution, our minds wander back to the thousands of years it took natural selection to produce the modern-day man. But are we still changing as a species, even today?
• The cashew is a very unusual nut.