THE KNOWLEDGE FEED

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.

Last Week's Most Popular Stories

Jason English

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

Weekend Links: The Hubble Telescope Turns 21

Allison Keene

Signs You Have Arrived: when there’s a drink named after you. * How many of these 100 great books have you read?

The Inspiration for Breaking Bad

Jason English

From Greg Braxton in The Los Angeles Times: The series was inspired by concerns [series creator] Vince Gilligan and writer friend Tom Schnauz had after The X-Files ended about the scarcity of scree

Lunchtime Quiz Leftovers

Jason English

8 Secrets From the Wonderful World of Disney

Adam Raymond

1. There Are Human Remains in the Haunted Mansion The Haunted Mansion ride at Disneyland is one of the scariest places in the park, but not for the reasons you’d expect.

The Late Movies: Fun with Harry Potter

Miss Cellania

The final movie in the Harry Potter series opened this weekend -although you may have to wait a day or two to get tickets at this point.

As American as Apple Pie Bombs

Stacy Conradt

American institution or not, Nikita Khrushchev probably wasn’t impressed with the mysterious homemade apple pie he received during his first visit to the United States in 1959.

The World's Most Dapper Koala

Jill Harness

Poor Asha just had what was almost certainly his worst day ever; he was hit by two different cars while trying to cross the street. Fortunately, a rescuer found him in time to save him.

Plus: Grading Systems

David K. Israel

When I was in school, A+ was the best grade one could get. 90 was an A-, 95, an A and 100 = A+. Of course, grading systems vary depending on where you grow up.

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