For centuries, students have learned that in a right triangle, the square of the hypotenuse equals the sum of the squares of the other two sides. Known as the Pythagorean Theorem, this ...

NPR news, audio, and podcasts. Coverage of breaking stories, national and world news, politics, business, science, technology, and extended coverage of major national and world events.

See our expert dietitian's take on Noom offerings, plus our tester's long-term review as she updates each month.

Michael Tanenbaum is a senior staff writer for PhillyVoice, with interests ranging from technology and behavioral health to local community initiatives and cultural life. Michael has written for ...

Hosts Ben Brock Johnson and Amory Sivertson dig into the internet's vast and curious ecosystem of online communities to find untold histories, unsolved mysteries, and other jaw-dropping stories ...