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

Khan Academy provides various free introductory biology video lessons. Topics include acids and bases, properties of carbon, macromolecules, energy / metabolism, enzymes, cell...

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

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

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

In this online course, Mariah Carey teaches how to use the voice as an instrument. The course includes several video lessons and various supplemental materials.

This online video lecture series discusses advanced topics related to algorithms in computer science.

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

The overall goal of this course is to familiarize the students with the potential, the requirements and the problems of designing dynamic biological elements that are of central...

This online lecture series gives an introduction to political theory.

In this online course, presidential campaign strategists David Axelrod and Karl Rove reveal what goes into effective political strategy and messaging. The course includes more...

This online lecture provides an introduction to mathematical modeling of computational problems.

This online lecture covers the fundamentals of signal and system analysis, focusing on representations of discrete-time and continuous-time signals (singularity functions,...

This online course gives a free introduction to digital currencies such as Bitcoin. It is also the first course of an online master's program in digital currencies from the...

This online lecture / workshop discusses how some empirically unconfirmed or inconclusively confirmed theories in physics have nevertheless attained a high degree of trust among...

This online video lecture series gives an introduction to political economy.

Topics covered in this online lecture (part 2) include the general formalism of quantum mechanics, harmonic oscillator, quantum mechanics in three-dimensions, angular momentum,...

This online video lecture series explores various topics of human-computer interaction.

This online lecture discusses nonlinear dynamics and control of underactuated mechanical systems, with an emphasis on machine learning methods.

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