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

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

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

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

Khan Academy provides various free introductory art history video lessons. Topics include prehistoric art, ancient mediterranean art (Egypt, Greece, Rome and others), medieval...

This online course gives an introduction to Kotlin, a popular programming language for Android development, web development, and more.

Khan Academy provides various free introductory physics video lessons. Topics include velocity and acceleration, forces and Newton's laws of motion, gravitation, energy,...

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

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

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

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

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

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

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

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

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

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

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

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

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,...