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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.

This collection of YouTube playlists provides an introduction to car technology for beginners. It includes several video lists on topics such as car engines, engine components,...

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

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

This online video lecture series explores various topics of robotics.

This online video lecture series gives an introduction to linguistics.

This online lecture by Yale University provides an introduction to the principles and methods of physics.The course covers Newtonian mechanics, special relativity, gravitation,...

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

This online course covers system identification. It includes eg. Introduction to modeling: Black-box and grey-box models; Parametric and non-parametric models; ARX, ARMAX (etc.)...

In this online course, former CEO of PepsiCo Indra Nooyi teaches how to think big, be brave, and make purpose-driven changes at work. The course includes more than 20 video...

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

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

This online lecture is designed to serve as a first course in an undergraduate electrical engineering (EE), or electrical engineering and computer science (EECS) curriculum.

Khan Academy provides various free introductory chemistry video lessons. Topics include atoms and compounds, chemical reactions, the periodic table, chemical bonds,...

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.

This online course introduces microeconomic concepts and analysis, supply and demand analysis, theories of the firm and individual behavior, competition and monopoly, and...

This string theory lecture focuses on holographic duality (also known as gauge / gravity duality or AdS / CFT) as a novel method of approaching and connecting a range of diverse...

In this online course, legendary director Werner Herzog teaches documentary and feature filmmaking. The course includes more than 20 video lessons and various supplemental...

This online lecture discusses aspects of Organizational Psychology.

This is an online lecture for those who are interested in the challenge posed by massive and persistent world poverty.The course discusses aspects such as:different growth rates...