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This online lecture series gives an introduction to galaxies and cosmology. It includes the Milky Way and the Local Group as well as larger-scale structures of the universe.

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

The purpose of this course is to examine the African American experience in the United States from 1863 to the present.

This online lecture introduces students to the modeling, quantification, and analysis of uncertainty.

This online lecture / workshop discusses how some empirically unconfirmed or inconclusively confirmed theories in physics have nevertheless attained a high degree of trust among...

This online lecture series gives an introduction to the concepts behind special relativity, including length contraction, time dilation, the Lorentz transformation, relativistic...

This series of lectures gives an introduction to complex analysis.

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

This online course gives an introduction to linguistics (the nature of human language).

This course teaches how to program in C++, which is a language well-respected for its flexibility and low-level functionality. It is used in the development of operating...

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 gives an introduction to the philosophy of economics.

This online lecture explores statistical modeling and control in manufacturing processes.

The course is structured around three intertwined sets of topics: Happiness and Flourishing; Morality and Justice; and Political Legitimacy and Social Structures. It covers...

Die Online-Kurse der KhanAcademy geben eine erste Einführung in die Programmierung für Anfänger. Enthalten sind die Sprachen JavaScript, HTML, CSS und SQL.

Khan Academy provides various free introductory art history video lessons. Topics include prehistoric art, ancient mediterranean art (Egypt, Greece, Rome and others), medieval...

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

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 discusses various aspects of metaphysics.

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...