iOS app Android app

The Elements

The Grains of Space

Mario Livio | Posted 04.29.2014 | Science
Mario Livio

It may come as a surprise that in modern physics, there exists a scale below which the very notions of length and space cease to exist. This is known as the Planck length, named after the German physicist Max Planck.

11 Bestselling Book Apps For Adults And Kids

The Huffington Post | Jessie Kunhardt and Amy Hertz | Posted 05.25.2011 | Books

When you go to the app store, look for the best books. Yes, instead of searching for Twitter, Facebook, a navigational or weather app for your iPad, i...