THE KNOWLEDGE FEED

Muzak History: The Background Story on Background Music

Ethan Trex

When you hear the name Muzak, you probably think of the type of easy listening music one often encounters in elevators or while on hold at a call center.

Snail Mail My E-Mail

David K. Israel

So here's something pretty amazing: An artist and designer named Ivan Cash has decided to give back to the world in the form of snail mail. No, I don't mean junk snail mail.

10 Cool and Creative Marriage Proposals

Miss Cellania

Whatever your opinion of flashy, big-production proposals, you have to admit that someone who puts that kind of effort into asking a simple question is someone who really cares about the answer.

Brain Game: Je via sano!

The mentalfloss.com Brain Game presents Tuesday Test Time, live and with limited commercial interruption.

Morning Cup of Links: Space Exploration

Miss Cellania

The Secret Race to the Moon.

How Glenn Close’s Dad Stopped the Ebola Virus

Stacy Conradt

Back in the 1960s and ‘70s, William Taliaferro Close was the personal physician of President Mobutu Sese Seko of Zaire. He was also the chief doctor of the army.

Breaking Bad's Super Intense Gus Was Big Bird's Camp Counselor

Jason English

On Breaking Bad Giancarlo Esposito plays Gus Fring, one of the scariest characters on television.

The Late Movies: Doogie Howser, M.D.

Erica Palan

From 1989 through 1993, the world was captivated by the tales of Doogie Howser, M.D., a character played by a then-unknown Neil Patrick Harris.

The Best and Worst Minor League Stadium Promotions

Bud Shaw

The Peoria Chiefs, the Class A affiliate of the Chicago Cubs, joined the list of LeBron James' bashers when it staged a "LeBron James NBA Championship Replica Ring Giveaway" after the D

Remembering Richard Feynman

Chris Higgins

In this TEDxCaltech talk, physicist Leonard Susskind talks about his old friend Richard "Dick" Feynman.

Creepy Russian Propaganda Posters

Ransom Riggs

I've been hanging out over at English Russia a lot recently, and I came across an archive of Russian propaganda posters.

Brain Game: Math Square #82

It's many readers' favorite way to start the week: The Monday Math Square Brain Game at mentalfloss.com! The nine white squares inside the main red grid should be filled with the digits 1

Snails Can Survive Being Digested

Jill Harness

You probably know that snails often fall prey to hungry birds, but you might not know that the slithering insect mollusk crawling across your driveway might have already been eaten by a bird—and surv

Morning Cup of Links: Pretty Poison Frogs

Miss Cellania

Who will be the inaugural inductees into the Trivia Hall of Fame?

Weekend Links: Tickle-Me-Koala

Allison Keene

Need a collaborative, creative kid project? Use Lunch Notes as an inspiration: “Every day since kindergarten Rob Kimmel has sent his son to school with a post-it note and pen inside his lunchbox.

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