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Free Korean 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 calculus lecture covers differentiation and integration of functions of one variable, and concludes with a brief discussion of infinite series.

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

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

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 lecture provides a comprehensive overview of the scientific study of thought and behavior. It explores topics such as perception, communication, learning, memory,...

This online lecture series presents the theory of fundamental machine learning concepts. Topics covered in the video lectures include: Bayesian theory of optimal decisions...

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

Free Romanian 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 online course teaches how to build powerful interactive applications with this popular JavaScript library. React is an open source library developed by Facebook.

This online video lecture series gives an introduction to optoelectronics.

This online lecture examines the neural bases of sensory perception. The focus is on physiological and anatomical studies of the mammalian nervous system as well as behavioral...

This online video lecture series explores the process and status of European Integration within the EU member states and beyond. It includes lectures on many individual EU...

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

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

This online video lecture explores the evolution of capitalism.The course seeks to interpret capitalism using ideas from biological evolution: Firms pursuing varied strategies...

This online course is an in-depth series of videos about differential equations and the MATLAB® ODE suite. These videos are suitable for students and life-long learners.

This online lecture series explores the metaphysics of life and death. It discusses topics such as various arguments for the existence of the soul, personal identity,...