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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,...

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

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

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

Khan Academy provides various free introductory video lessons on health and medicine. Topics include human anatomy and physiology, circulatory system diseases, mental health,...

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

This online course explores the fundamentals of JavaScript, the programming language of the Web.The course was designed for learners who have some knowledge of HTML and CSS and...

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

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 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...

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

This course teaches how to style websites with CSS.

This online course teaches how to create websites by structuring the pages with HTML.The course is designed for beginners and includes HTML elements and structures as well as...

Khan Academy provides various free introductory microeconomics video lessons. Topics include supply, demand, market equilibrium, scarcity, preferences, consumers and producers,...

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

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

This online course teaches how to publish a personal website to the public Internet.

This course shows the basics of SQL data analysis to explore dips and spikes in data and build business metrics.

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

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