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Khan Academy provides various free introductory biology video lessons. Topics include acids and bases, properties of carbon, macromolecules, energy / metabolism, enzymes, cell...

This online lecture provides an introduction to optical science with elementary engineering applications.

This online video lecture series gives an introduction to political economy.

This online lecture series gives an introduction to political theory.

This is a continuation of Freshman Organic Chemistry I, the introductory video lecture on current theories of structure and mechanism in organic chemistry for students with...

The course is structured around three intertwined sets of topics: Happiness and Flourishing; Morality and Justice; and Political Legitimacy and Social Structures. It covers...

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

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

This course teaches how to program in C++, which is a language well-respected for its flexibility and low-level functionality. It is used in the development of operating...

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

This online lecture focuses on the equations and techniques most useful in science and engineering.

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

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

This online lecture provides an introduction to the chemistry of biological, inorganic, and organic molecules.The emphasis is on basic principles of atomic and molecular...

This online lecture by Yale University provides an introduction to the principles and methods of physics.The course covers Newtonian mechanics, special relativity, gravitation,...

This online video lecture series explores various topics of human-computer interaction.

This online lecture deals primarily with equilibrium properties of macroscopic systems, basic thermodynamics, chemical equilibrium of reactions in gas and solution phase, and...

This online course program gives an introduction to designing and building interactive web apps. It includes several modules, ranging from HTML, CSS and JavaScript to advanced...

This series of online courses explores the fundamental building blocks of computer science, including programming, development, algorithms, and data structures. The program...

This online course includes various free introductory history video lessons. Topics include:The beginnings and the neolithic revolution; Ancient civilizations in...