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In this non-technical online course for a broad audience, the former commander of the International Space Station (ISS) teaches the science of space exploration. It includes...

Khan Academy provides various free introductory anatomy video lessons. Topics include the circulatory system, respiratory system, urinary system, hematologic system, immunologic...

This online course teaches basic computing principles and foundational knowledge of the Internet and World Wide Web for absolute beginners.

These short online courses provided by Skillshare cover various topics around freelancing, including social media businesses, marketing, sales, business fundamentals, and...

This online course teaches how to build powerful interactive applications with this popular JavaScript library. React is an open source library developed by Facebook.

This online course gives an introduction to the C programming language. C is one of the foundational languages of computer science, for example used in operating systems. The...

In this online course, Christina Aguilera teaches the art of singing and various vocal techniques. The course includes more than 20 video lessons and various supplemental...

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

This online course teaches how to use Java to build mobile apps for Google’s Android operating system.

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

Comprehensive language course in Hindi. 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 introduces learners to the basics of Lua, a general-purpose programming language used for building games, web apps, and developer tools.

This course teaches how to program in R, which is a popular language used by data scientists and researchers.

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

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

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

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

This online course teaches Flask, a framework to turn Python programs into web sites and apps.

These online lessons explain the basics of abdomen and pelvis anatomy. In addition to the free video lessons, further (paid) trainings are available.

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,...