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Red, White, and Blue World Flags

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Around the 4th of July, Americans proudly display the Red, White, and Blue. Twenty-two other countries also fly red, white, and blue flags. Can you name them all? You have five minutes for this world tour.

How Do Glowsticks Glow?

Matt Soniak

Picture an atom. Now picture that atom getting excited. Maybe its birthday is coming up. Anyway, when an atom or a molecule gets excited, its electrons' energy levels go up.

The Missing Links: That Second That Screwed Up the Net

Colin Patrick

The Internet Doesn’t Want You To Miss One Single Second You’ve wasted hundreds, thousands, tens-of-thousands, probably hundreds-of-thousands of precious seconds on the internet (not the time you'

The Time Andy Kaufman Wrestled a Bunch of Women

Bill DeMain

On October 20, 1979, Andy Kaufman made his ninth appearance on Saturday Night Live. Previous audiences had laughed at his oddball routines that tread the line between comedy and performance art.

Mercury + Sound = Kooky Mad Science Party

Chris Higgins

Now let's watch what happens when you take a blob of mercury and subject it to different audio frequencies. Spoiler alert: the mercury forms geometric shapes and appears to dance.

When His Project Was Canceled, an Unemployed Programmer Kept Sneaking Into Apple to Finish the Job

the mag

When an Apple programmer’s project got canceled, he didn’t despair. He just kept sneaking into the office until the program was finished.

Brain Game: Playin' With Your Head

This week, we're remembering some of our classic mentalfloss.com Brain Game entries from years past. Monday's challenge: Playin' With Your

Morning Cup of Links: Fireworks Fails

Miss Cellania

The streets of Newcastle, England were not only inundated by rain, but also invaded by a Dalek, ingeniously disguised as a garbage bin. * The Supreme Court decided not to hear the case of Janet Jack

How Drinking Can Solve All Your (Word Association) Problems

Meghan Holohan

Ryan McVay/Photodisc Here's a gem for your next round of barstool trivia: a recent study shows that people who have a couple drinks solve brainteasers faster—and get more correct answers—than

Wendy's Founder Dave Thomas Worked for Colonel Sanders

Colin Patrick

Long before he was Biggie-sizing your burger and Frosty order, Wendy's founder Dave Thomas worked for Colonel Sanders.

Weekend Links: Shakespearean Hokey Pokey

Allison Keene

Gary Oldman speaks out against a very dangerous trend - athletes turning into actors! Fun fact: they had to shoot this an additional three times because he kept making the basket at the end.

Armchair Field Trip: Iowa's Stonehenge

Stacy Conradt

Have you ever wanted to speed across a bridge that’s half a mile long and 13 stories in the air, pretending you’re in Tron? Yeah, me too.

Last Week's Most Popular Stories

Jason English

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

Adam Savage Made His Own "Indiana Jones" Bullwhip

Chris Higgins

In this eight-minute video, MythBuster Adam Savage describes the construction of a replica Indiana Jones bullwhip.

Weekend Links: Sorkinisms

Allison Keene

Whether you loved or loathed Aaron Sorkin's new HBO show Newsroom, there is no denying that the art of the Sorkinism is alive and well.