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This online course teaches intermediate techniques to transform table data in SQL.

This online lecture explores photography as a disciplined way of seeing or investigating urban landscapes, and expressing ideas. Readings, observations, and photographs form the...

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

This online lecture gives an introduction to basic aspects of physics (mechanics, electricity etc.).

This online course program gives an introduction to cloud security.

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

This online lecture series gives an introduction to the fundamental algorithmic approaches for creating robot systems that can autonomously manipulate physical objects in...

This online lecture explores Science Fiction as a genre.

This survey course introduces students to the important and basic material on human fertility, population growth, the demographic transition and population policy.

This is the first of a two-part online lecture that provides the foundations for contemporary research in selected areas of atomic and optical physics.

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

This online video lecture series gives an introduction to Computer Science, Internet technology and the basics of computer hardware (CS105 class at Stanford University). The...

This online lecture series explores the science of the Covid-19 pandemic.

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

This course teaches the fundamentals of the Java programming language.It includes various interactive lessons and practical coding projects. (Also check out this overview of...

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

This online video lecture series gives an introduction to the way computers are build and designed.

This online lecture gives an overview of statistical methods in language technology, focussing mostly on written language (texts).

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

This online course gives an introduction to the programming language Java. It includes 8 lessons covering the fundamental syntax as well as objects, strings, data structures and...