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This online lecture explores Science Fiction as a genre.

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

This course teaches how to program in PHP, which is one of the most popular languages of modern web development.

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

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

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

This online lecture series gives an introduction to political theory.

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

This advanced-level online lecture gives an introduction to gravitational waves in astrophysics.

This survey course introduces students to the important and basic material on human fertility, population growth, the demographic transition and population policy.

This online lecture series gives an introduction to psychology. It explores human nature, including how the mind works, and how the brain supports the mind. Topics covered in...

This course teaches how to build four webpages from scratch while learning web development fundamentals.

This online lecture series explores the science of the Covid-19 pandemic.

This online course teaches the fundamental concepts of Blockchain and how to implement them in Python. Learners with prior Python experience will be able to build their own...

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

This online lecture provides a review of linear algebra, including applications to networks, structures, and estimation, Lagrange multipliers. (The title of part 2 is:...

This online lecture gives an introduction to the architecture of supercomputers.

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 video lecture gives an introduction to the area of computer games such as Massive Multiplayer Online Games (MMOG). It includes the server architecture for games, game...

This online lecture discusses various aspects around internet security. After a brief introduction to the structure of the internet, problems such as hackers and viruses, the...