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This online lecture gives an introduction to the dependability and reliability of hardware and software systems.

These short online courses provided by Skillshare cover various topics around fine art, including drawing, illustration, sketching, painting, acrylic painting, and watercolor.

In this online course, Garry Kasparov teaches advanced Chess strategy, tactics, and theory. The course includes more than 20 video lessons and various supplemental materials.

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

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

This online course teaches how to build powerful, dynamic websites and web applications using the popular ASP.NET MVC web framework.

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

This course focuses on three particularly interesting areas of astronomy that are advancing very rapidly: Extra-Solar Planets, Black Holes, and Dark Energy. The course explores...

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

This online lecture gives an introduction to the architecture of supercomputers.

This online video lecture provides a historical study of the origins of Christianity by analyzing the literature of the earliest Christian movements in historical context,...

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

Khan Academy provides various free introductory mathematics video lessons. Topics include elementary math, algebra, geometry, calculus, trigonometry, differential equations,...

The purpose of this course is to examine the African American experience in the United States from 1863 to the present.

In this online course, popular astrophysicist and scientist Neil deGrasse Tyson teaches scientific thinking and communication.

This online course introduces learners to the basics of Lua, a general-purpose programming language used for building games, web apps, and developer tools.

This online lecture series covers the basic principles of Einstein's general theory of relativity, differential geometry, experimental tests of general relativity, black holes,...

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

This is an intermediate algorithms course with an emphasis on teaching techniques for the design and analysis of efficient algorithms, emphasizing methods of application.

This online course teaches how to manage data with SQL, including mastering complex commands to manipulate and query data stored in relational databases. It includes topics such...