THE KNOWLEDGE FEED

The Secret Life of Plankton

Chris Higgins

In this 6-minute video, scientists show what plankton look like -- when photographed through a microscope.

Office Rat-A-Tat: E-mail Hypothesis by Hongbing

David K. Israel

I directed a short video starring Hongbing.

Name the Athletes Who've Hosted Saturday Night Live Since 1991

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New York Giants quarterback Eli Manning will be hosting Saturday Night Live on May 5th. He joins a pretty long list of athlete hosts that includes O.J. Simpson, Wayne Gretzky, Joe Montana, and Walter Payton. Since 1991, if you don't count Jeff Gordon or The Rock, 13 different athletes have hosted SNL. How many can you name in five minutes? (Hint: A few Olympians are involved.)

6 Illicit Lemonade Stands Towns Had to Shut Down

Rob Lammle

Lemonade stand image via Shutterstock For generations, entrepreneurial kids have set up card tables in front yards to sell ice cold drinks to passers-by.

Why Do Dogs Stick Their Heads Out of Car Windows?

Matt Soniak

Dogs image via ShutterstockDogs seem to stick their heads out of moving cars almost any chance they get.

Brain Game: Math Square #118

As has become the custom here at the mentalfloss.com Brain Game, we open the work week with a new Monday Math Square.

Morning Cup of Links: Plush Pets

Miss Cellania

By some estimates, 25% of college students take some kind of psychotropic drug as a matter of course.

27 Temporarily Banned Episodes of Popular TV Shows

Kathleen Elise Austin Thompson

Over the years, a number of TV series have removed specific episodes from their rerun schedules. Some eventually return to the airwaves, while others may be serving a lifetime ban.

5 Questions: Magical Props

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X-Rays Help Find Two Van Gogh Paintings

Jill Harness

For years, art historians debated on whether or not the painting above, entitled Still Life with Meadow Flowers and Roses, was the work of famed impressionist Van Gogh.

11 Product Names That Mean Unfortunate Things in Other Languages

Haley Sweetland Edwards

Here are some tragic, hilarious, and off-color examples of products that really exist—and don’t always mean what their manufacturers think.

World War I Centennial: The Titanic and an Ambivalent Alliance

Erik Sass

Installment #12: On April 14, 1912, at 11:40 p.m., the ocean liner RMS Titanic, en route from Queenstown, Ireland, to New York City, accidentally rammed an iceberg, tearing a series of holes in the si

Weekend Links: The Power of Music

Allison Keene

Definitely my favorite link this week: an ?elderly man in a nursing home reacts to hearing music from his era?.

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: Who Said It, James Joyce or Kool Keith?

Allison Keene

From my friend Marcela, 12 things you probably didn't know about Home Alone.

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