Elmo is the only non-human to testify before Congress.
Pi, the mathematical ratio of a circle’s circumference to its diameter, is a universal constant—much like our global love for pizza.
In 2008, an international team of scientists was trudging through the forests of Vietnam’s Bidoup-Nui Ba National Park when they found a frog they didn’t recognize.
1983 was a banner year for American culture. If you're turning 30 this year, you're not alone—here are 30 things to celebrate with.
Good news, sanitizer fans: Those gels and foams do quite a number on the critters crawling on your skin.
Here are some wonderful Pi Day pies you might try this year.
After establishing the theory of relativity as a founding principle of modern physics, Albert Einstein turned his thoughts to higher matters: home appliances.
Veronica Mars creator Rob Thomas launched a Kickstarter campaign to create a film adaptation of the series; it raised $1 million in under 5 hours.
Dan Lewis runs the popular daily newsletter Now I Know ("Learn Something New Every Day, By Email"). We've invited him to share some of his stories on mental_floss this week.
When we imagine the creation of an object, be it a light bulb or an iPad, we typically imagine a sole inventor, toiling away in a room to build it. But it's never that simple.