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THE KNOWLEDGE FEED

Trailer Thursday: Dinosaurs, Teapots, and the Undead. Oh My!

Stacy Conradt

Massive Wartime Decoys and Camouflage Operations

Miss Cellania

11 Historical Firsts on Mount Everest

The Week

An Oregon teen with Down syndrome joins an unrivaled group who have scaled, snowboarded, and rocked out on Mount Everest.

Sir Nils Olav, Norway’s Penguin Knight

Roma Panganiban

The United States Marines have their bulldogs and the Army has their mules, but the Norwegian Royal Guard has a mascot a little more accustomed to colder temperatures: Nils Olav, a King Penguin who is

The Basics of Parallel Universe Hypotheses

Chris Higgins

10 Real-Life Panic Rooms

Virginia C McGuire

Sometimes called safe rooms, these fortified bunkers are meant to shelter people during an attack, a burglary, or an extreme weather event.

How Much Does a Cloud Weigh?

Matt Soniak

Reader Jane wrote in to note that clouds look so nice and fluffy and lighter-than-air, so they certainly can’t weigh much. Right?

5 Terrifyingly Huge Spiders

Erin McCarthy

Arachnophobes, read no further: These massive spiders can’t be dispatched by a shoe or rolled-up newspaper.

5 Questions: "Add"ition

Questions:5
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden

Fans Pulled Onstage to Rock

Chris Higgins

Grab a Spoon and Take Our Cereal Quiz!

Jason English

6 Weird Theories on Early Human Intelligence

M Asher Cantrell

Through thousands of years of knowledge and learning, we’ve developed extremely advanced intelligence as a species, especially when compared to other animals. But what made us so unique?

The Cell Phone Turns 40

The Week

On April 3, 1973, a Motorola employee named Martin Cooper strolled out onto New York's Sixth Avenue with an oddly-shaped plastic brick in his hand.

The Missing Links: Welcome to Jurassic Park

Colin Patrick

The Quarter Backs Quiz

Questions:20
Available:Always
Pass rate:75 %
Backwards navigation:Forbidden
Sandy and Kara originally posted this quiz in 2007. It's been taken more than two million times, from middle schools to nursing homes, making it by far our most popular trivia challenge. If you're not one of the 2+ million, it's time to test your knowledge of spare change and state iconography.

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