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This online course has lectures which cover commercial and emerging photovoltaic technologies and cross-cutting themes, including conversion efficiencies, loss mechanisms,...

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

This online lecture is an introduction to the theory that tries to explain how minds are made from collections of simpler processes.

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

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

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

This calculus lecture covers differentiation and integration of functions of one variable, and concludes with a brief discussion of infinite series.

Khan Academy provides various free introductory video lessons on astronomy and cosmology. Topics include the scale of the universe, the Big Bang, stars, black holes, galaxies,...

This video lecture gives an introduction to the area of machine learning. Lecture slides are shown together with the lessons.

These short online courses provided by Skillshare cover various topics around freelancing, including social media businesses, marketing, sales, business fundamentals, and...

This online course gives an introduction to Kotlin, a popular programming language for Android development, web development, and more.

This online lecture focuses on the equations and techniques most useful in science and engineering.

In this short online course, former Starbucks-CEO Howard Shultz teaches business leadership.

This advanced-level online lecture gives an introduction to gravitational waves in astrophysics.

This online course gives an introduction to the Express framework.

This course teaches how to style websites with CSS.

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

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

In this online course, Chris Voss (a former FBI kidnapping negotiator) teaches how to negotiate. The course includes more than 10 video lessons and various supplemental materials.

In this online course, Oscar-winning director Ron Howard teaches directing. The course includes more than 20 video lessons and various supplemental materials.