Mental Floss

BIG QUESTIONS









Edward Stojakovic, Flickr // CC BY 2.0

The polar vortex is famous for blasting arctic air south to the U.S. But what exactly is happening here?

Erin McCarthy
Express Newspapers/Getty Images

Martin Luther King Jr. earned a doctorate in systematic theology from Boston University in 1955. In 1989, archivists working with The Martin Luther King Papers Project discovered that King’s dissertation suffered from what they called a “problematic use o

Matt Soniak








The All-Nite Images, Flickr // CC BY-SA 2.0

The furry sentinels ward off vermin. They also sleep in empty stock boxes. But are they a health hazard?

Jake Rossen








iStock.com/InaTs

Here's what goes into your favorite candy bars.

Michele Debczak