If you are the type of person who likes to broaden your mind and learn about the world around you, this app of the day is right up your alley. TED is a website that has mini-documentaries and lectures from speakers around the world. TED features videos from a wide-range of topics, from new ways to diagnose autism, to how to defend Earth from asteroids, and even a discussion about morality in animals. Most videos are 10 to 15 minutes in length. The TED app allows you to search for videos by category, upload date and more.
TED is free to download and available on the iPhone, iPad and Android devices.