THE KNOWLEDGE FEED

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And Man Created Dog

Jill Harness

Dogs just might be the only animal man can actually take credit for creating.

Brain Game: Driven

Short and sweet for the Tuesday Brain Game.

Morning Cup of Links: Duck Bills

Miss Cellania

Summertime for George Gershwin.

The Late Movies: Drinking With Rachel Maddow

Ransom Riggs

Here's something you probably weren't aware of: when she's not being the outspoken host of MSNBC's The Rachel Maddow Show, Rachel Maddow is an amateur bartender.

People Who Will Be at the Idea Festival Besides Us

Mangesh & Jason

As we mentioned last week, our co-founder Will Pearson will be representing mental_floss at the Idea Festival in Louisville, which runs from September 29th through October 2nd.

Vaseline: The Miracle Jelly Turns 140

Linda Rodriguez McRobbie

It's difficult to find anything, especially a commercial product, that hasn't really changed in 140 years.

Meet Our Oldest Reader!

Mangesh & Jason

This month's winner of our ongoing "Find Our Oldest Reader" scavenger hunt is John Tullner of Kilmarnock, Virginia. John snapped a photo of his 98-year-old friend, John D.

Concussions Linked to Lou Gehrig's Disease?

Meghan Holohan

Lou Gehrig earned the nickname the Iron Horse for good reason.

Hummingbirds in Slow Motion (HD Video)

Chris Higgins

In this video, filmmaker Ann Prum describes how she and her team made a Nature documentary about hummingbirds using high-speed HD cameras and specialized lenses.

The Quick 10: 10 People with Perfect Pitch

Stacy Conradt

We talked ("talked," I suppose) last week about people with photographic memories, and in my mind, perfect pitch - knowing exactly what pitch a note is and even being able to sing it back pe

Antarctic Abandonments Through the Ages

Jill Harness

We all know just how inhospitable the Antarctic is, so it's hardly surprising that many people who set up shop in the region later abandoned their shelters and never bothered to return.

By the Numbers: Top 10 Tweeters

David K. Israel

Ever wonder who has the most followers on Twitter? Here are the top 10, by the numbers. Please note: these are real people only!

From Twitter to TV Show

Ransom Riggs

OK, they're really reaching now. It was silly enough when they turned a web TV show into a real TV show -- remember Quarterlife, canceled after the first episode?

Brain Game: Math Square #38

The nine white squares inside the main red grid should be filled with the digits 1 through 9. Each digit should appear only once in this main grid (the red square).

Were You in Oprah's First Audience?

Colin Patrick

Are any of these people

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