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Khan Academy provides various free introductory physics video lessons. Topics include velocity and acceleration, forces and Newton's laws of motion, gravitation, energy,...

This online video lecture series gives an introduction to political economy.

This online course teaches how to use Java to build mobile apps for Google’s Android operating system.

Extensive Mandarin language course, also suitable for beginners. Learn with videos from native speakers with subtitles in English and Mandarin. Easy handling and rewinding of...

This online course teaches how to create websites by structuring the pages with HTML.The course is designed for beginners and includes HTML elements and structures as well as...

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

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

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

This online lecture is a first-year college course on the principles of chemistry.

The focus of this course (part 2 of 2) is on coding techniques for approaching the Shannon limit of additive white Gaussian noise (AWGN) channels, their performance analysis,...

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

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.

This online lecture series discusses various aspects of metaphysics.

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

This online lecture series explores how algorithmic puzzles can be solved with computer programming, using the Python programming language.

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 online course gives an introduction to Alexa, the Voice User Interface (VUI) application by Amazon.The course shows how to build a simple interaction model that responds to...

This online course program gives an introduction to back-end programming. It includes basic skills such as programming servers and client-side interfaces and designing...

This online lecture discusses aspects of Decays in Quantum Field Theory.

This online course gives an introduction to TypeScript (a programming language that builds on JavaScript).