THE KNOWLEDGE FEED

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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.

Brain Game: Short Spell #5

Here's a Short Spell challenge for Wednesday Wordplay here at the mentalfloss.com Brain Game. Good luck! ONE of the five words in the following list is misspelled.

Morning Cup of Links: Fishing Under Ice

Miss Cellania

Police are investigating the discovery of an unidentified murder victim on the grounds of Queen Elizabeth's country estate Sandringham.

6 Infamous Arsonists and How They Got Caught

Meghan Holohan

Image credit: REUTERS/GENE BLEVINS/LANDO Over 50 fires gutted cars in Los Angeles this past weekend.

The Late Movies: Happy Anniversary, Alaska!

Erica Palan

Today in 1959, the United States officially welcomed Alaska as the 49th state. Some Alaska fun facts: Alaska was purchased for $7.2 million in 1867.

When the Car Radio Was Introduced, People Freaked Out

Bill DeMain

Is texting while driving total insanity or just one more inevitable tide of modern life?

The Night They (Almost) Bombed Old Dixie Down

Stacy Conradt

Walter Gregg and his young son were working on a project in their garden shed in Mars Bluff, South Carolina, when the backyard was hit with a nuclear bomb. What?

What Happens When You Give 1000s of Stickers to 1000s of Kids?

David K. Israel

Last month, artist Yayoi Kusama turned an ordinary room in the Queensland Art Gallery into a giant canvas by painting everything white.

Old News: Very Early Media Coverage of the GOP Candidates

Jason English

Every week, I used to wander into the New York Times archives to find the first time the paper covered various topics (like The Walkman).

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