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Question for the Group: How Do Free Conference Call Companies Make Money?

Jason English

I'm on a conference call and curious, but it would be rude to do the research. (Posting this of course is not at all rude.) Anyone

Preserving the President: Abraham Lincoln, Grave Robbers, and an Excellent Embalmer

Matt Soniak

President Lincoln's funeral train in Philidelphia near the start of its 13 day journey from Washington to Springfield.

Witnessing the Blue Marble Firsthand

Chris Higgins

The Overview Effect is a term describing the cognitive effects of viewing Earth from space.

More Than You Ever Needed to Know About Mistletoe

Matt Soniak

When you sidle up to your sweetie for a smooch beneath the mistletoe this year, try not to think too much about the provenance of the plant's name.

Now You Can Buy All 721 Super Nintendo Games

Erin McCarthy

Need a gift for that ultimate Super Nintendo fan you know? Look no further than this ebay listing, which contains all 721 SNES games ever made for the United States, Mexico, and Canada, for a mere

Why is New York City Called The Big Apple?

Sean Hutchinson

New York City has been called many things—“The Great American Melting Pot,” “Gotham,” “The City that Never Sleeps”—but its most famous nickname, without a doubt, is “The Big Apple.” But where did this

Brain Game: Math Square #150

Here's a brand new Monday Math Square for today's mentalfloss.com Brain Game challenge - #150 in the long-running series.

Morning Cup of Links: Robot Love

Miss Cellania

The Best Literary Quotes Ever Tattooed. They must really have a deep meaning, at least for the one person who decided to keep each one forever. * 17 Uncomfortable Moments Under The Mistletoe.

Weekend Links: Real-Time Births and Deaths Map

Allison Keene

Spooky but mesmerizing: a real-time map of of births and deaths in the United States (click on the image to get to the map itself). * Very cool: "Super Mario Beads 3," a suburban stop-moti

Last Week's Most Popular Stories

Jason English

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

The First Christmas Card Was Sent in 1843

Matt Soniak

The commercial Christmas card as we know it originated in London in 1843.

Why is Space Dark?

Chris Higgins

Time for your daily mind-blow. In this four-minute video (tsk tsk!), Minute Physics explains why the night sky is dark, and in turn tackles the more interesting question of why space itself is dark.

World War I Centennial: Austria-Hungary Escalates, Kaiser Convenes War Council

Erik Sass

Installment #48: As 1912 drew to a close, Europe seemed to be teetering on the brink of war.

10 Sci-Fi Gingerbread Creations

Miss Cellania

Making a gingerbread house is a fun and traditional craft for the holidays, but there's no reason why crafting with gingerbread should be limited to architecture.

8 Great Arguments from the Latke-Hamentash Debate

Arika Okrent

Every year, a few weeks before Hanukkah begins, eminent scholars don their formal academic robes and convene in one of the great Gothic halls at the University of Chicago to present their arguments on