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

This collection of YouTube playlists provides an introduction to car technology for beginners. It includes several video lists on topics such as car engines, engine components,...

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...

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...

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

Free German 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...

This online language teaching method/app includes various languages, such as a German, English, Spanish, French, and Italian language course, and more.

This online course gives an introduction to Swift, a programming language developed by Apple for iOS and macOS.

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

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 mathematics video lessons. Topics include elementary math, algebra, geometry, calculus, trigonometry, differential equations,...

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

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

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

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

Khan Academy provides various free introductory programming video lessons. Topics include JavaScript, HTML and CSS, SQL, and more.

Khan Academy provides various free introductory anatomy video lessons. Topics include the circulatory system, respiratory system, urinary system, hematologic system, immunologic...

This online course teaches how to manage data with SQL, including mastering complex commands to manipulate and query data stored in relational databases. It includes topics such...

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