THE KNOWLEDGE FEED

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10 Venn and Not-quite-Venn Diagrams

Miss Cellania

Venn diagrams are used for more than just useful stuff like science and demographics.

The Secret Life of Everyday Things

Jill Harness

If you've ever considered whether the items in your fridge have parties after you close the door on them, then you'll love Terry Border's book Bent Objects: The Secret Life of Everyday

Brain Game: Play With Your Food

Not including sharps and flats, there are seven key musical pitches or notes: A, B, C, D, E, F, and G.

Happy 102nd Anniversary, Sexist NYC Smoking Ban!

Ransom Riggs

Known as the Sullivan Ordinance, it was passed January 21, 1908 -- and it applied only to women -- and it lasted only two weeks, whereupon the mayor vetoed it.

Morning Cup of Links: Seafaring Lemurs

Miss Cellania

Happy Weird Year: The 10 Strangest and Most Bizarre Calendars of 2010.

The Late Movies: The Hitchcock Interview, 1973

Chris Higgins

"I'd like not to talk to you this morning about movies, but rather about ideas. I may not be successful at that, but, I'm going to attempt it.

Make Someone's Day: Send a mental_floss Care Package

Mangesh & Jason

Know someone who needs a boost this winter? If the clever pizza box doesn't bring a smile to their face, the stuff inside surely will!

The Quick 10: 10 Long-in-the-Tooth "Teenagers"

Stacy Conradt

You all know that I'm a big Glee fan.

A Word About Our Newsletter (Also: Dog Pics!)

Jason English

In last week's newsletter, I mentioned that I'd been unable to take a photo of office dog Leo, the most popular employee in our Ohio retail store. Well, I finally got one, paparazzi-style.

4 Secret Subways Hiding Underground

Rob Lammle

It seems impossible to think that a city could have an underground rail system that most people don't even know about.

Cab Driver Returns $21,000 Left in Cab

Jill Harness

If you found $21,000, would you keep the cash? Few people in this world are as honest or kind as Mukul Asadujjaman, a New York taxicab driver who is working his way through medical school.

Brain Game: Double D

Find as many words as you can that are (1) exactly five letters in length and (2) begin and end with the letter "D." If you can come up with 10 or more, you've won today's Bra

The Most Depressing Day of the Year

Ransom Riggs

According to a UK firm that tracks employee absenteeism, the most depressing day of this year -- coined Blue Monday -- was January 18, two days ago.

Morning Cup of Links: Fartists

Miss Cellania

Charting the Beatles, an exploration of Beatles music through infographics. I look at these and think of the days and weeks of data-crunching, sore eyes, and Mountain Dew that went into the project.

The Quick 10: 10 Television Firsts

Stacy Conradt

Today marks the anniversary of the day Lucy Ricardo gave birth to Little Ricky on national T.V.

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