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Repairing the Washington Monument, 124 Years After It Opened

Erin McCarthy

The road to the public opening of the Washington Monument on October 9, 1888, was a long one: Though a design had been chosen in 1836, ground wasn’t broken until 1848, because of haggling over that de

The Missing Links: Where Is the Mountain-Climbing Tim Taylor?

Colin Patrick

VP Must Stand For Very Patronizing. Or Voracious Pugilism. A few notable moments from Vice Presidential debates throughout the years. * Sacred Home Land For Sale. Very Spacious.

10 Clever and Creative Costumes for Halloween

Miss Cellania

Every year, people amaze me not only with their ideas, but with their talent and dedication at bringing the best costumes to life for Halloween (and other occasions).

Inventor of the LED Discusses LEDs

Chris Higgins

Fifty years ago today, on October 9, 1962, physicist Nick Holonyak demonstrated the first "visible" LED (in other words, one that emitted non-infrared light).

9 Ways People Used Radium Before We Understood the Risks

Adrienne Crezo

Radium was discovered by Marie Curie and her husband Pierre in 1898.

What if Money Were No Object?

Chris Higgins

While this question may seem trite, it is truly valuable if we actually consider it: what would you like to do every day, if money were no object?

Why Do We Crave Chocolate?

Erin McCarthy

If you’re like most people, you simply can’t pass up the opportunity to partake in a piece of chocolate (or five). Some have even said that chocolate melting on the tongue is better than a kiss.

Brain Game: Marks the Spot

In a few days, we'll introduce an exciting presidential event here at mentalfloss.com. In the meantime, enjoy today's POTUS-related Brain Game Tuesday Test Time challenge: Which two U.S.

Morning Cup of Links: Improving Tube Signs

Miss Cellania

Today is the day that Felix Baumgartner will attempt to skydive from 23 miles up.

When Premature Babies Were Sideshows

Jill Harness

If you think sideshows never did anything positive for humanity, think again.

The Stem-Cell Breakthroughs That Won the Nobel Prize

The Week

Two scientists who each made a major discovery — four decades apart — share the science world's prestigious

World War I Centennial: First Balkan War Begins

Erik Sass

Installment #39: On this date in 1912, Montenegro declared war on the Ottoman Empire, opening the First Balkan War and moving Europe one step closer to the conflagration looming in 1914.

The Late Movies: Kinetic Typography

Andréa Fernandes

Kinetic typography, or "moving text," videos have become increasingly popular and have flourished on YouTube, where design students everywhere post their pet projects and school assignments.

The Missing Links: In 1492, Columbus Sailed ... Into A Mall?

Colin Patrick

In A Perfect World, Science Museums Wouldn’t Have to Advertise But since it isn't and they do, you might as well make sure the advertisements are geeky and cool to show off your science smarts.

How mental_floss Helped Erik Dresner Win $22,401 on Jeopardy!

Erin McCarthy

This morning, I got a great email from mental_floss reader (and friend of a friend) Erik Dresner about his experience on Jeopardy! that I had to share.

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