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THE KNOWLEDGE FEED

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Tips For Staying Awake and Alert That Don't Involve Caffeine

Hannah Keyser

Cue up the cat videos next time you're fading at your desk—they're among the best non-caffeinated ways to get an energy boost.

15 Facts You Might Not Know About the Taj Mahal

Michael Arbeiter

For starters, there's a conspiracy theory about it's origin.

Pick the Correct Word for Each Definition

You can do this.

MIT Hires a Robot Bartender

Anna Green

"Bruh" and "Manspreading" Added by Oxford Dictionaries in Latest Update

Nick Greene

Could a Seed Bank Be Called Into Action to Save Florida’s Orange Trees?

Kirstin Fawcett

A fast-spreading bacterial disease might someday destroy the citrus industry.

17 Clues About Puzzlemaster Will Shortz

the mag

There's more to the famed wordsman than just crosswords.

10 Misconceptions About Space

Alvin Ward

This week, Elliott sets the record straight about some common space myths.

This Skydiving Spider Can Target You From Above

Mental Floss UK

Look! Up in the sky! It's a bird ... it's a plane ... it's a Selenops.

Grave Sightings: William McKinley

Stacy Conradt

Get up close and personal with the 25th president's final resting place: a 96-foot tall memorial in Canton, Ohio.

12 Back-to-School Facts About 'Welcome Back, Kotter'

Kara Kovalchik

Forty years ago, the Sweathogs arrived for class.

Why Do I Gag When Someone Else Barfs?

Amanda Green the mag

The reality behind the reflex.

The Mystery of Knut the Polar Bear's Death Has Finally Been Revealed

Michele Debczak

Scientists have discovered the missing piece in Knut's tragic story.

The Men Who Invented Fun: A History of Wham-O

Jake Rossen

A peek inside the zaniest toy factory in American history.

12 Lesser-Known Wham-O Products You Have to See to Believe

Jake Rossen

The makers of the Hula Hoop would also like to interest you in a bomb shelter.

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