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Benjamin Franklin and Jonathan Swift Were Fart Joke Masters

Lucas Reilly

Benjamin Franklin was many things: printer, inventor, postmaster, turkey-zapper, constitution-signer, and connoisseur of fart jokes. The founding father fancied flatus.

The Missing Links: Robots Get No Respect

Colin Patrick

Supervillain Singalong • Zombie Teddy Bears • Disneyland's Secret Club • "Silent Reading"

Celebrate Physicist Ronald E. McNair, Who Died in the Challenger Disaster

Erin McCarthy

On this date in 1986, the Challenger exploded 73 seconds after liftoff, killing all seven people on board—including physicist Ronald E. McNair, who was the second African American to enter space.

"Baltass," the Ultimate Cups-and-Balls Illusion

Chris Higgins

Yann Frisch is a French sleight-of-hand artist best known for a routine called <a href="http://yann-frisch.com/baltass.html">Baltass</a> (a portmanteaux of the French words for &

23 Vintage Photos of People Having Fun in the Snow

Erin McCarthy

Get cozy and enjoy these historical photos of snow day shenanigans. Who knows—maybe they'll inspire you to bundle up, venture out, and have some fun.

7 Common Words With Little-Known Relatives

Arika Okrent

When some words hit the big time, they left clunky related words behind.

Brain Game: Math Square #155

Sandy Wood

Morning Cup of Links: Fictional Libraries

Miss Cellania

12 Unconventional Radiators

Amanda Green

Because it's very cold.

How Did Wolves Evolve into Man's Best Friend?

The Week

Implausible as it may seem, your harmless little maltipoo puppy descended from a fearsome line of bloodthirsty wolves.

Win a Copy of <em>F for Effort!</em>

Erin McCarthy

Last Week's Most Popular Stories

Jason English

In case you weren't obsessively refreshing mentalfloss.com all week, here's what you missed.

The Greatest Dance Number Ever Filmed

Chris Higgins

Weekend Links: Animals in Snow

Allison Keene

Animals in Snow • The World's Poorest President • 3D Printer Hamburger • NFL Lip Reading • The Evolution of Movie Poster Colors

The Magic of David Copperfield, 1978

Chris Higgins

In 1978, David Copperfield burst onto the scene with an impressively corny-but-endearing TV special shot for CBS.