THE KNOWLEDGE FEED

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Jellyfish

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Jellyfish

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Tuesday Turnip

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Tuesday Turnip

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AJ on Alcohol

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AJ on Alcohol

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How Superman Defeated the Ku Klux Klan

Mark Juddery

In the 1940s, The Adventures of Superman was a radio sensation. Kids across the country huddled around their sets as the Man of Steel leapt off the page and over the airwaves.

This Week's Most Popular Stories

Jason English

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

The Weekend Links

Allison Keene

Let's start things off with a vintage viral video clip that never fails to bring the laughs - a Halloween Prank that either went very right or very wrong, depending on who you are in the video!

The Stories Behind 6 Famous Masks

Kara Kovalchik

Just in time for Halloween, here are a few behind-the-scenes tidbits about some famous masks (of both the scary and not-so-spooky variety). 1.

Lunchtime Quiz Leftovers

Jason English

7 Tasty Facts About Halloween Treats

Kara Kovalchik

Ever wondered what M&M's stands for? Or how the Dum-Dum "Mystery Flavor" is created? Read on for some fun facts about a few Halloween

The Mathematical Pi Song

Chris Higgins

Two weeks ago I wrote about The Story of Pi, a semi-educational retro video that visually explains Pi.

The Late Movies: Halloween Pranks

Mario Marsicano

Halloween is almost here. Just remember, scaring people can be a dangerous business. Nice right

Nuclear Scientists Discuss Superhero Origins

Jason English

Earlier this week, friend of the _floss Maggie Koerth-Baker posted a round-up of nuclear accidents in the U.S. & Russia.

5 Things You Didn't Know About Josephine Baker

Ethan Trex

Singer and dancer Josephine Baker was probably the closest thing the Jazz Age had to a Britney Spears-type character.

The Halloween Science FAQ

Matt Soniak

What is dry ice and how does it make that awesome

motionbox.com presents: HDYK? - {day 4}

David K. Israel

It's an all-new 5-day trivia hunt, with an all-new set of puzzles, prizes, and now, a major sponsor! Co-puzzle Master Josh Halbur and I are thrilled to announce that How Did You Know?

The Sherlock Holmes Handbook: How to Outwit a Criminal Mastermind

Ransom Riggs

It's been well over a century since the first Sherlock Holmes adventure was published, and yet the master detective remains as popular as ever; witness the upcoming release of Holmes, starring Ro

Friday Happy Hour: Would You Like M&M's With That?

Jason English

Every Friday, I post a series of unrelated questions meant to spark conversation in the comments. Answer one, answer all, respond to someone else's reply, whatever you want. Very casual.

Our Readers' Favorite Halloween Costumes

Jason English

All fall, you guys have been filling up our inbox with your best Halloween photos. Get in the holiday spirit by looking at some of our favorite submissions.

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