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Khan Academy provides various free introductory chemistry video lessons. Topics include atoms and compounds, chemical reactions, the periodic table, chemical bonds,...

This online video lecture series explores the impact of computers and technology on social science fields.

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 online lecture covers the fundamental principles, practices and tools of Lean Six Sigma methods that underlay modern organizational productivity approaches applied in...

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

This online lecture is an introduction to the dynamics and vibrations of lumped-parameter models of mechanical systems. Topics covered include kinematics, force-momentum...

This video lecture gives an introduction to ceramics.

In this online course, the world´s #1 women´s tennis player Serena Williams teaches everything from core techniques to fitness drills and improving the mental game. The course...

This online course teaches how to build web apps with one of the most portable and in-demand programming languages available.

This course teaches how to style websites with CSS.

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,...

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

This video lecture gives an introduction to the area of machine learning. Lecture slides are shown together with the lessons.

This online lecture is a first-year college course on the principles of chemistry.

This online video lecture series explores various technology trends and fields of innovation.

This online video lecture series gives an introduction to the way computers are build and designed.

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

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

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

This online lecture explores photography as a disciplined way of seeing or investigating urban landscapes, and expressing ideas. Readings, observations, and photographs form the...