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This is an online lecture about the design and implementation of secure computer systems. Lectures cover threat models, attacks that compromise security, and techniques for...

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

This online lecture series gives an introduction to nuclear and particle physics.

This online lecture discusses nonlinear dynamics and control of underactuated mechanical systems, with an emphasis on machine learning methods.

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 is the second of a two-part online lecture beginning with Atomic and Optical Physics I that provides the foundations for contemporary research in selected areas of atomic...

This online lecture gives an introduction to quantum optics.

This online lecture series gives an introduction to quantum mechanics for use by chemists. Topics include particles and waves, wave mechanics, semi-classical quantum mechanics,...

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...