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

This online course teaches how to build interactive websites by learning the fundamentals of HTML, CSS, and JavaScript.

This short online course explains the cosmic origin of the elements: The lighter elements were mostly produced in the Big Bang, and the rest were formed within stars and...

This course presents the principles of evolution, ecology, and behavior for students beginning their study of biology and of the environment.

This course teaches how to program in Ruby, a flexible language used to create many websites.

Khan Academy provides various free lessons for learners who prepare for the MCAT test.

This online lecture gives an introduction to biomedical signals and their digital analyis. (Note: course website is in German, but lectures + slides in English.)

This online video lecture series gives an introduction to Natural Language Understanding as a sub-problem of artificial intelligence.

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

This online course introduces learners to the Flutter framework with interactive lessons on basic app components.

This course will examine law through case histories including: environmental effects of national security, pesticides, air pollution, consumer products, plastics, parks and...

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

This online lecture gives an introduction to the concepts of machine learning. (Some math and programming experience required.)

This series of video lectures explores various technologies involved in building distributed, data-intensive systems.

This online video lecture series explores various technology trends and fields of innovation.

This course explores the causes, course, and consequences of the American Civil War, from the 1840s to 1877.

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...

This series of lectures gives an introduction to the mechanics of spaceflight.

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

This series of online courses explains the role of testing in web development. Participants will build a testing suite for a full-stack web application.