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Comprehensive language course in Greek. The idea of this course is to learn the language "like a native". This means that the course creates an immersive learning experience...

This online lecture covers elementary discrete mathematics for computer science and engineering.

This series of video lectures explores various technologies involved in building distributed, data-intensive systems.

This online lecture provides a review of linear algebra, including applications to networks, structures, and estimation, Lagrange multipliers. (The title of part 2 is:...

This course teaches the fundamentals of the Java programming language.It includes various interactive lessons and practical coding projects. (Also check out this overview of...

This online lecture series gives an introduction to international relations. It includes theoretical foundations (such as realism, liberalism, marxism and constructivism) as...

This online lecture series covers the basic principles of Einstein's general theory of relativity, differential geometry, experimental tests of general relativity, black holes,...

Highlights of Calculus is a series of short online videos that introduces the basics of calculus—how it works and why it is important.

This online lecture series gives an introduction to quantum computing. It includes topics such as the history of quantum computing, the basics of quantum mechanics, quantum...

This online lecture gives an introduction to machine learning for physicists. [Note: Lectures 1 and 2 are not in the right order on the course overview page.]

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

This online lecture provides an introduction to optical science with elementary engineering applications.

This online course teaches basic programming knowledge to build your first PHP websites.

The goal of this online lecture is to illustrate the spectroscopy of small molecules in the gas phase.

This online lecture series examines classical and modern developments in graph theory and additive combinatorics, with a focus on topics and themes that connect the two...

This graduate-level online lecture includes numerical methods; initial-value problems; network flows; and optimization. (The title of part 1 is: Computational Science and...

These short online courses provided by Skillshare cover various topics around business analytics, including data analysis, data science, and data visualization.

This series of online courses gives an overview of the fundamentals of programming and computer science. The courses explore what computer science is, how web development works,...

This online video lecture series gives an introduction to Computer Science, Internet technology and the basics of computer hardware (CS105 class at Stanford University). The...

This course teaches the use of Git, a source code management system for software development. It shows how to create and explore a simple Git-managed project.