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This course teaches how to add sign up, log in, and log out functionality to Rails apps, as well as how to manage access to specific pages.

Khan Academy provides various free introductory video lessons on electrical engineering. Topics include circuit analysis, amplifiers, semiconductors, electrostatics, signals and...

This course teaches how to use the command line to manipulate data and automate tasks.

This online course teaches front-end web development with JavaScript and ReactJS.

This online course program gives an introduction to AWS cloud services.

This course explores the physical processes that control Earth's atmosphere, ocean, and climate. It includes topics like: clouds, rain, severe storms, air pollution, ocean...

The 16 lectures in this course cover the topics of adaptive antennas and phased arrays.

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...

This online lecture series explores new technologies that are disrupting the financial services industry, including AI, deep learning, blockchain technology and open APIs. The...

In this online course, the world´s #1 women´s tennis player Serena Williams teaches everything from core techniques to fitness drills and improving the mental game. The course...

In this online course, legendary producer "deadmau5" (Joel Zimmerman) teaches the art of producing electronic music. The course includes more than 20 video lessons and various...

This course examines major works by Hemingway, Fitzgerald, and Faulkner, exploring their interconnections on three analytic scales: the macro history of the United States and...

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

This online lecture emphasizes dynamic models of growth and development. Topics covered include: migration, modernization, and technological change; static and dynamic models of...

This online lecture gives an overview of Social Psychology, i.e. the behaviour of people in groups.

In this online course, "Gangster Gardener" Ron Finley teaches gardening skills and techniques, including how to grow your own food, keep your plants alive, and find beauty and...

This online lecture gives an introduction to cooperation systems related to digital computer systems.

This online lecture series gives an introduction to biology. It focuses on the basic principles of biochemistry, molecular biology, genetics, and recombinant DNA. The course...

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

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