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

Khan Academy provides various free introductory macroeconomics video lessons. Topics include national income and the GDP, inflation, demand and supply, business cycles, the...

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

This online course gives an introduction to the C programming language. C is one of the foundational languages of computer science, for example used in operating systems. The...

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 online course gives a free introduction to digital currencies such as Bitcoin. It is also the first course of an online master's program in digital currencies from the...

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

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

These online lessons explain the basics of abdomen and pelvis 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,...

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

Free Polish 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,...

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

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

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

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

This course provides a selection of individual lessons and analyses from experts on the 2020 corona virus outbreak. It includes topics such as an epidemic overview, fatality...

This online course gives an introduction to Alexa, the Voice User Interface (VUI) application by Amazon.The course shows how to build a simple interaction model that responds to...