THE KNOWLEDGE FEED

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Tuesday Turnip

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Tuesday Turnip

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On pens

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On pens

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The Late Movies: Mel Brooks

Mark Arminio

Each year, the Kennedy Center honors a group of legendary performers who have contributed to the arts.  This morning, they announced that Mel Brooks would join Robert DeNiro and Bruce Springsteen, am

Cymatics: Making Sound Visible

Chris Higgins

Way back in September of 2007, I posted some links to the bizarre world of ferrofluid, illustrating how fluids can interact with magnets (often magnets driven by sound -- like speakers) to create stra

How Do Countries Choose Which Side They Drive On?

Linda Rodriguez McRobbie

Chaos has descended this week on the tiny Pacific island of Samoa after government officials decided to force the entire nation to switch sides of the road on Monday.

The Quick 10: 10 Celebrities Who Attended College Post-Fame

Stacy Conradt

Just because you've made millions before the age of 18 doesn't mean you don't need an education. Just ask Emma Watson and the Olsen twins.

Lunchtime Quiz: The Roland Emmerich Reign of Destruction

Jason Plautz

The trailer for 2012, a film about the predicted end of the world, promises destruction galore and cements Roland Emmerich as the undisputed king of toppling world monuments.

8 Odd Periodic Tables (and then lots more)

Miss Cellania

People love the Periodic Table of Elements, as long as they don't have to deal with the actual chemistry.

11 Colleges That Changed Their Mascots

Ethan Trex

With college football season starting up, we thought it might be interesting to take a look back at a few colleges who have changed their nicknames or mascots.

Armchair Field Trip: Lollapalooza

Stacy Conradt

Last year was my first Lollapalooza ever. It's been around since 1991, but let's just say there's no way my parents would have let me go back then.

Baby Powder: Killing You Softly?

David K. Israel

The Greeks used it to construct building materials. The Romans used it to clean up blood after gladiator contests.

Brain Game: Stack 'em Up

Thanks for giving today's Brain Game a shot. Enjoy a new one every weekday on mentalfloss.com at 7:30 a.m. Eastern time. Following are 8 four-letter words and names.

Morning Cup of Links: The Updated Hubble

Miss Cellania

The 19-year-old Hubble Telescope was refurbished earlier this year. Some new, improved photographs have been released, and are eye-popping awesome!

The Late Movies: 9 Great Beatles Videos

Chris Higgins

Today (09-09-09) marks the landmark re-release of the entire Beatles catalog (thirteen albums plus two additional discs of non-album tracks) as boxed sets and individual discs, in two formats: the or

4 Great Documentaries Currently Free on YouTube

Chris Higgins

So, recently YouTube started showing whole movies for free -- much like Hulu, there are occasional ads interspersed, but they're not too bad.

The Quick 10: 10 "Fifth Beatles"

Stacy Conradt

09.09.09: It's Beatlemania all over again. At least, it is at my house.

Do Blind People See Things in Their Dreams?

Matt Soniak

A question from reader Josiah: "Do blind people see when they dream? I think there are two sides to the question, dealing with people who were born blind, and those who used to be able to see.&q

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