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This online lecture series gives an introduction to General Relativity.In includes 12 video lectures by the University of Tübingen. Each lecture shows a table of contents that...

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

This online lecture series gives an introduction to political theory.

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

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

This online course provides a basic introduction to metric spaces. It covers metrics, open and closed sets, continuous functions (in the topological sense), function spaces,...

This series of online courses gives an introduction to Data Analysis using the Python programming language.

This online lecture series gives an introduction to self-driving cars and their technology.

This course focuses on three particularly interesting areas of astronomy that are advancing very rapidly: Extra-Solar Planets, Black Holes, and Dark Energy. The course explores...

These short online courses provided by Skillshare cover various topics around film and video, including filmmaking, film and video production, film and video editing, publishing...

These short online courses provided by Skillshare cover various topics around web development, including HTML, CSS, Javascript, Wordpress, and various other technologies.

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,...

In this online course, Mariah Carey teaches how to use the voice as an instrument. The course includes several video lessons and various supplemental materials.

Diese Online-Vorlesung behandelt die Kunst und Architektur der USA.

This short online lecture discusses proof for God´s existence. It is a guest lecture at Universität München held in English after a brief introduction in German.

This online lecture gives an introduction to the concepts of machine learning. (Some math and programming experience required.)

This online lecture gives an introduction to Cyber-Physical Systems (CPS), combining cyber capabilities (computation and/or communication) with physical capabilities (motion or...

This online lecture series gives an introduction to Greek history. It traces the development of Greek civilization as manifested in political, intellectual, and creative...

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 gives an introduction to computer architecture. It explores in great detail how computers are designed.