THE KNOWLEDGE FEED

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Can Soap Get Dirty?

Matt Soniak

Soaps are mixtures of sodium or potassium salts derived from fatty acids and alkali solutions in a process called saponification.

motionbox.com presents: HDYK? - {day 2}

David K. Israel

It's an all-new 5-day trivia hunt! Co-puzzle Master Josh Halbur and I are happy to bring you the next How Did You Know? sponsored by the extraordinary video sharing site motionbox.com.

Secrets of the Secret Society for Creative Philanthropy

Jill Harness

Regular _floss readers may remember the article I posted last month about The Secret Society for Creative Philanthropy.

The Perks of the Presidency

Jason English

Last month, New York Magazine posted a photo gallery titled "A History of Obama Feigning Interest in Mundane Things." Dean Trippe has tweaked those photos, adding objects like Marty McFly�

Brain Game: Pounds & Minutes

Wednesday's Brain Game: Which U.S. city could be represented by the following combination of measurements? 86,400 seconds + 32,000 ounces Here is the SOLUTION. THE SOLUTION:  

More Photos of our Readers

Ransom Riggs

Just kidding! But I thought these nerd-tacular portraits captured a special certain something that all of us here at mental_floss can relate to.

Morning Cup of Links: Lifestyle Creep

Miss Cellania

15-year-old Phoebe Prince was bullied and harassed for months and finally committed suicide.

The Late Movies: Spontaneous Dance Parties

Erica Palan

If the Internet has taught us anything, it's this: Watching other people do things that make them happy makes us happy, too.

Drawing with a Computer in 1963

Chris Higgins

Ivan Sutherland created a computer program called Sketchpad in the early 1960's as his PhD thesis.

The Quick 10: 10 Spoonerisms (and other twists of the tongue)

Stacy Conradt

You know how sometimes when you're talking, your mouth is moving faster than your brain and you inevitably flip the beginning parts of a couple of words?

Puberty Makes You Stupid

Meghan Holohan

Even though the negative consequences of sexting are well known, teenagers still text naked pictures to their peers.

How 14 Car Companies Got Their Names

Ethan Trex

Most of us probably don't put too much thought into our cars' names. Sure, we'll take the wheel of a Toyota or a Chevrolet, but how did those cars pick up their monikers?

motionbox.com presents: HDYK? - {day 1}

David K. Israel

It's an all-new 5-day trivia hunt! Co-puzzle Master Josh Halbur and I are happy to bring you the next How Did You Know? sponsored by the extraordinary video sharing site motionbox.com.

Brain Game: Junkyard Fodder

Tuesday's Brain Game:  Following are eight anagrams; unscramble the letters to solve them. Solve all eight anagrams correctly and identify what they have in common.

Just The Craziest 80s Action Movies Ever

Ransom Riggs

There was a point in the 80s when filmmakers were all trying to out-do each other to make the all-out bad-assest action movie of all time.

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