THE KNOWLEDGE FEED

Brain Game

Math Square #226

Brain Game

Math Square #226

Pie Man to the Rescue!

Pie Man to the Rescue!

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Recording Explosions for 'Star Wars'

Chris Higgins

7 Best Friends Who Shared Incredible Secrets

The Time the United States Tried to Buy Greenland

Mark Mancini

Had a Cold War sales pitch worked out differently, Greenland just might have become an American territory.

The Missing Links: The Best Coming-of-Age Films

Colin Patrick

Average Internet Speed by State

Alvin Ward

Where does your state rank?

A Brief History of the Road

the mag

From ancient mud bricks to salty beet juice, roads have a long, winding history—and a glowing future.

11 Electronic Musicians Who Are Collaborating With Their Fans in Unique Ways

Rebecca OConnell

35 People You Might Not Realize Appeared on 'The West Wing'

Jennifer M Wood

Politics makes strange bedfellows, and dozens of great cameos.

Animal Kingdom Kleptos: 7 Species That Steal

Jeremy Gordon

Humanity, you’re not alone in harboring a criminal element.

9 Poems Penned by Presidents

Erin McCarthy

These presidents were more than just politicians—they also tried their hands at poetry.

Morning Cup of Links: Internet Activism Goes to Washington

Miss Cellania

Where Did The Ampersand Symbol Come From?

Hannah Keyser

Creating Voices for Chewbacca and R2-D2

Chris Higgins

Morning Cup of Links: New York in Slow Motion

Hannah Keyser

What Causes Eye Floaters?

Matt Soniak

Eye floaters — or muscae volitantes, Latin for “hovering flies" — are those tiny, oddly shaped objects that sometimes appear in your vision, most often when you’re looking at the sky on a sunny d

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