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THE KNOWLEDGE FEED

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Scrabble's Teacher: Not so bright?

David K. Israel

One of the reasons why I like the Scrabble app better than Words With Friends is that it has that wide-smiling Teacher.

What's the Difference Between Ketchup and Catsup?

Matt Soniak

Ketchup and catsup are simply two different spellings for the same thing, a modern, Westernized version of a condiment that European traders were introduced to while visiting the Far East in the late

How Do Magic Eye Pictures Work?

Matt Soniak

Magic Eye's granddaddy was the random dot stereogram invented by neuroscientist and psychologist Bela Julesz in 1959 to test people’s ability to see in 3D.

How Does China Enforce Its One-Baby Policy?

Matt Soniak

© Roy Hsu/Blend Images/CorbisMost people have heard that in China, you're only allowed to have one kid. But does that apply to everyone?

Why Do Dogs Walk in a Circle Before Lying Down?

Matt Soniak

The circling thing is a relic of domestic dogs' wild past, a bit of hard-wired behavior that hasn't been bred out yet.

8 Heroic U.S. Military Chaplains

Miss Cellania

While researching the post 10 Heroic Battlefield Medics, I came across a couple of fascinating stories about military chaplains and their wartime exploits.

Lectures for a New Year: Parrots, the Universe, and Everything

Chris Higgins

Today I've got a doozy of a lecture for you.

If You Have Any Questions, Now's a Good Time to Ask

Jason English

We're going to do something different today. Special different. Our latest issue — "The Most Important Questions of 2012" — is now on newsstands and in mailboxes.

Brain Game: First Johns

There are four living former U.S. presidents and five living former First Ladies, but a stout 27 living presidential offspring.

Morning Cup of Links: Spiderworms

Miss Cellania

Al Qaeda appears to be fading away. Since bin Laden's death, the terrorist group has become decimated, discouraged, and underfunded. * 10 Amazing Stories of Animal Prosthetics.

10 Classic Moments on Jeopardy!

David K. Israel

Here we have some amazing clips from one of our favorite shows, Jeopardy!. Everything from our colleague Ken Jennings using a dirty word on air to stupid category titles and hilarious answers.

119 Amazing Facts for National Trivia Day

Jason English

Here's a little-known fact: today is National Trivia Day! Let's celebrate with some of our favorite facts, pulled from our Amazing Fact Generator and the @mental_floss Twitter

At the Libraries: What Character Would You Invite to a Holiday Meal?

Miss Kathleen

Each week Miss Kathleen provides links to a variety of stories about libraries, authors, and books. If there’s something noteworthy going on in your local library, leave us a

Lectures for a New Year: Being a Genius vs. Having a Genius

Chris Higgins

Welcome to the second day of our new lecture series. Are we having fun yet? Up today, a short lecture you can definitely fit in during your lunch break.

What Happens to Leftover Campaign Funds When a Candidate Drops Out?

Ethan Trex

Image credit: REUTERS/ADAM HUNGER/LANDOV After a disappointing performance in the Iowa Caucus, Rick Perry is reassessing his campaign.

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