THE KNOWLEDGE FEED

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The Creator of the Mad Magazine Fold-In

Colin Patrick

As a child, I loved few things as much as I loved Mad Magazine.

THXTHXTHX: Thank Goodness for Everything

Ransom Riggs

THXTHXTHX is a charming blog made up entirely of handwritten thank-you notes, addressed not to people but to objects and ideas and gestures and everyday things that the blog's founder, Leah, is t

Rodent, or NOT a Rodent?

Miss Cellania

According to Grandpa, any wild mammal that invades your home or garden is a rodent, often lovingly referred to as a "varmint." This turns out to be not quite so.

Caterpillars Who Defend Themselves

Jill Harness

We tend to think of caterpillars as cute, innocent little bugs who are, at worst, garden pests. But not all future moths and butterflies are so defenseless.

Brain Game: Have a Slice

A quick one for today's Tuesday Test Time.

Morning Cup of Links: A Spirited Robot

Miss Cellania

People with long commutes to work have more health problems, pain, stress, loneliness, divorce, obesity, and unhappiness.

Brain Game: Math Square #76

Welcome to Math Square #76, with Orson Bean! Brett Somers! Charles Nelson Reilly! No, wait, that's Match Game '76. Never mind.

Weekend Links: Make Your Voice Heard, Be Part of a Dialect Map!

Allison Keene

Do you guys ever remember to take snapshots from your plane window?

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: Extreme Knitting

Allison Keene

Everyone has pet peeves but … why? Evolutionarily speaking, that is. What is it that bugs us most as humans, and why is it that we find what we do "annoying"?

The Quick 10: The Chrysler Building

Stacy Conradt

Apparently it’s Buildings of New York Appreciation Week here in the Quick 10.

10 Mostly Obscure Indy 500 Facts Sure to Impress Your Friends, at Least on a Slow-Lane Kind of Day

Bud Shaw

1. The Indianapolis Motor Speedway spans 253 acres and includes a golf course.

How Did You Know? – Day 4 Level 3/Bonus Round

David K. Israel

YES! You can play this challenge/contest without knowing a thing about the weekly hunt! It's sort of a one-off - a stand-alone if you will.

Way More Than You Ever Wanted to Know About Hello Kitty

Rob Lammle

You know her name. You've seen her signature red ribbon. And even though you're curious, you've never had the courage to learn more because you're not a seven-year old girl.

How Much Is That Social Media Company in the Window?

Brett Savage

Now that LinkedIn has taken the plunge and gone public, the company is valued at approximately 45 times the amount of revenue it generates annually—meaning there is a bit of a disconnect between its e

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