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Khan Academy provides various free introductory video lessons on astronomy and cosmology. Topics include the scale of the universe, the Big Bang, stars, black holes, galaxies,...

Comprehensive language course in French. The idea of this course is to learn the language "like a native". This means that the course creates an immersive learning experience...

Khan Academy provides various free introductory physics video lessons. Topics include velocity and acceleration, forces and Newton's laws of motion, gravitation, energy,...

This series of online courses explains the role of testing in web development. Participants will build a testing suite for a full-stack web application.

In this online course, Beatles drummer Ringo Starr shares his principles for creative collaboration, finding your unique playing style, and embracing your musical journey with joy.

In this online course, Oscar winner Helen Mirren teaches acting. The course includes more than 20 video lessons and various supplemental materials.

In this online course, Carlos Santana teaches how to play guitar. The course includes more than 10 video lessons and various supplemental materials.

This series of online courses gives an overview of the fundamentals of programming and computer science. The courses explore what computer science is, how web development works,...

This online course teaches more advanced concepts in Android, like using threads and services for background work, sharing data with intents and broadcast receivers, and proper...

This series of online courses gives an introduction to Data Analysis using the Python programming language.

In this online course, Oscar nominee Samuel L. Jackson teaches acting. The course includes more than 20 video lessons and various supplemental materials.

In this online course, NBA champion Stephen Curry teaches basketball. The course includes more than 15 video lessons and various supplemental materials.

This course teaches how to program in Ruby, a flexible language used to create many websites.

Comprehensive language course in Dutch. The idea of this course is to learn the language "like a native". This means that the course creates an immersive learning experience...

Free German language app with many short tests to learn "on the go". (Not a video course.)

Free Hungarian language app with many short tests to learn "on the go". (Not a video course.)

Comprehensive language course in Russian. The idea of this course is to learn the language "like a native". This means that the course creates an immersive learning experience...

This online course teaches how to use color effectively to create attractive and useable websites.

In this online course, six-time World Series of Poker champion Daniel Negreanu teaches advanced poker theory and practice through hand-reviews of his winning games. The course...

Free Portuguese language app with many short tests to learn "on the go". (Not a video course.)