THE KNOWLEDGE FEED

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Last Week's Most Popular Stories

Jason English

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

Stunning Color Images of World War II

Jill Harness

Weekend Links: The Earliest Sound Recordings

Allison Keene

There have been quite a few earthquakes lately, but how much do you know about them?

The Time Fidel Castro Asked FDR for $10

Stacy Conradt

“If you like, give me a ten dollars bill green american, in the letter, because never, I have not seen a ten dollars bill green american and I would like to have one of them.”

15 Professions With Strange and Wonderful Names

Greg Sabin

Historical employment records are full of fantastic job titles that don't often show up in today's classifieds. Here are 15 professions with very interesting

Weekend Links: The Geek Shall Inherit The Earth

Allison Keene

A love letter to letters: or, how to get your friends to actually send you a tangible piece of mail every once and awhile to give your email account a break! * Puzzle time: twist the letters around

The Late Movies: 1971

Miss Cellania

Labor Day weekend is traditionally what we think of as the end of summer. That's just a little sad, even if you love autumn as I do.

Home Libraries of the Rich and Famous

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

Rude and Petty Chatbots Talking to Each Other

Colin Patrick

The Cornell Creative Machines Lab works with chatbots – “machines designed to emulate the conversational abilities of humans, conversing with a human user and generally attempting to convince the user

The Haiku Trivia Contest!

Jason English

Let's do something a little different this week. Haiku Trivia! I've got a $50 mental_floss store shopping spree for the person who tells us the most amazing fact in haiku form.

Why Are Textbooks So Expensive?

Ethan Trex

It’s hard to make that first trip to the college bookstore for required texts without leaving with a bit of sticker shock. Why are textbooks so astonishingly expensive? Let’s take a look.

RSVP for Our Memphis Trivia Show/Pizza Party!

Mangesh Hattikudur

This year marks our 10th anniversary. To celebrate, Will and I are loading up the RV and taking the mental_floss Trivia Show on the road.

Dean Martin Hates The Beatles

Colin Patrick

When you hear about the arrival of The Beatles during the British Invasion of the mid-1960s the talk always centers on the rampant hysteria they inspired – the legendary premiere on The Ed Sullivan Sh

10 People Who Became Dog Toys

Jill Harness

Dog toys generally come in three designs: classic toys such as Frisbees and tennis balls, indestructible designs like the Kong line, and cute animals that are fuzzy or squeaky.

A Few Tech Tidbits

David K. Israel

Here are a few cool tech tidbits I recently discovered and wanted to share with my _flossers. 1. Gmail is Smarter than You The other day I was sending someone an e-mail with an attachment.

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