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Brain Game: Math Square #139

Here's the mentalfloss.com Brain Game Monday Math Square challenge: Place the digits 1 through 9 in the white blanks so that the mathematical equations work both across and down.

Morning Cup of Links: Puppet Proposal

Miss Cellania

The Emmy Awards were handed out last night. Who cares

Last Week's Most Popular Stories

Jason English

In case you weren't obsessively refreshing mentalfloss.com all week, here's what you

How to Taste Coffee

Chris Higgins

Coffee cupping is like wine tasting -- but for coffee.

Weekend Links: 50 Greatest Chase Sequences

Allison Keene

No "best of" list is going to be exhaustive or totally inclusive and they usually deserve a little side-eye but nevertheless this 20 Best Small Towns in America feature is pretty interesting

The Jetsons Premiered 50 Years Ago Today

Jason English

If you're wondering when we'll be getting flying cars and robot maids, the show was set in 2062.

12 Cat-Related Patents That Are Really Quite Bizarre

Erin McCarthy

To visit Google's patent website is to lose yourself in a black hole of totally weird wannabe inventions—a surprising number of which are for your feline friends.

Celebrating the Golden Lobes at IdeaFestival

Jason English

Greetings from Louisville! Will, Mangesh and I are here for IdeaFestival. Yesterday, Mangesh spoke to some of the nation's smartest middle schoolers, who grilled him in a lively Q&A.

The Early History of 5 Spy Agencies

David W Brown

Most intelligence agencies in the U.S. government were formed to solve specific problems, or evolved from preceding organizations. There wasn’t always an FBI, for example.

It's Really Loud With the Shop Vac On

Chris Higgins

It's Saturday. It's hot in my workshop. Let's enjoy an upbeat tune with a jaw-droppingly good fan video.

Weekend Links: Disgusting Cartoon-Themed Snacks

Allison Keene

From my friend Alexis, "a strange, well-written, utterly chilling story with a haunting central image: that of a Japanese prodigy performing to an American audience on Nov.

The Late Movies: Dr. Jekyll and Mr. Hyde

Miss Cellania

Strange Case of Dr Jekyll and Mr Hyde is a story by Robert Louis Stevenson, originally published in 1886. Dr. Jekyll developed a potion that turned him into an evil man named Mr. Hyde.

The Missing Links: Russia's Secret Diamond Stockpile

Colin Patrick

News From the Springfield Precincts The election is still several weeks away, but at least we know how Homer voted: * My Favorite Phrase of the Week: Diamond-Filled Asteroid Crater The Rus

What the Weather Is Like on Other Moons and Planets

Calli Arcale

On Earth, we get snow, rain, fog, hail, and sleet, and all of them are basically the same thing: water. For a true change of weather, you need to go to other worlds.

"Everybody Seems to Want It": Early Media Coverage of Apple Computer

David W Brown

Today, shoppers around the world are smearing fingerprints and oily faces against the glass walls of Apple stores, peering in, waiting for doors to open and iPhones to be sold.