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

This online lecture series gives an introduction to international relations. It includes theoretical foundations (such as realism, liberalism, marxism and constructivism) as...

This course teaches how to build four webpages from scratch while learning web development fundamentals.

This course shows the basics of SQL data analysis to explore dips and spikes in data and build business metrics.

This online lecture explores the basics of digital circuits.

This course explores the physical processes that control Earth's atmosphere, ocean, and climate. It includes topics like: clouds, rain, severe storms, air pollution, ocean...

This online course teaches how to create websites by structuring the pages with HTML.The course is designed for beginners and includes HTML elements and structures as well as...

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

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

The course facilitates a close reading of Don Quixote in the artistic and historical context of renaissance and baroque Spain. Students are also expected to read four of...

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

This online lecture gives an introduction to machine learning for physicists. [Note: Lectures 1 and 2 are not in the right order on the course overview page.]

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 online lecture is a first-year college course on the principles of chemistry.

This online video lecture series gives an introduction to optoelectronics.

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

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

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

This online lecture series presents real-world examples in which quantitative methods provide a significant competitive edge for companies. The lectures present the key...

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...