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Khan Academy provides various free lessons for learners who prepare for the MCAT test.

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

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

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

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

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

This course teaches how to build web apps using AngularJS 1.x, enabling learners to use AngularJS to create their own apps.

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

This course teaches how MOS transistors work, and how to model them. The understanding provided in this course is essential not only for device modelers, but also for designers...

Khan Academy provides various free introductory computer science video lessons. Topics include algorithms, cryptography, information theory, computer hardware and software,...

This online course gives an introduction to artificial intelligence and deep learning for programmers.

Khan Academy provides various free introductory video lessons on electrical engineering. Topics include circuit analysis, amplifiers, semiconductors, electrostatics, signals and...

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

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

This course teaches how to program in Go (Golang), an open-source programming language supported by Google.

Khan Academy provides various free introductory video lessons on the history of the United States.

This online course gives an introduction to jQuery (a JavaScript library).

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

This series of short YouTube video lessons explains the basic fundamentals of automotive engineering for beginners. It includes topics like engines, gearbox, transmission, and...

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