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Highlights of Calculus is a series of short online videos that introduces the basics of calculus—how it works and why it is important.

This online lecture includes the energy levels, the statistical behavior and internal energy, energy transport in the forms of waves and particles, scattering and heat...

This online lecture series explores real-world applications of category theory. Category theory provides a framework in which to organize formal systems and by which to...

This online lecture offers a holistic view of the aircraft as a system, covering: basic systems engineering; cost and weight estimation; basic aircraft performance; safety and...

This course teaches how to program in C#, which is used for programming mobile applications, games and enterprise software.

This online course gives an introduction to the C programming language. C is one of the foundational languages of computer science, for example used in operating systems. The...

This online lecture emphasizes dynamic models of growth and development. Topics covered include: migration, modernization, and technological change; static and dynamic models of...

This lecture series addresses questions related to the foundations of Quantum Mechanics. Topics include: Bell´s inequalities and Entanglement, Measurements, Decoherence and the...

This online lecture focuses on the algorithms for analyzing and designing geometric foldings.

This online lecture discusses various aspects around internet security. After a brief introduction to the structure of the internet, problems such as hackers and viruses, the...

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

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

This online lecture gives an introduction to quantum optics.

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

This online lecture is an introduction to the dynamics and vibrations of lumped-parameter models of mechanical systems. Topics covered include kinematics, force-momentum...

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

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

In this online course, NBA champion Stephen Curry teaches basketball. The course includes more than 15 video lessons and various supplemental materials.

In this short online course, former Starbucks-CEO Howard Shultz teaches business leadership.

This course provides an integrated introduction to electrical engineering and computer science, taught using substantial laboratory experiments with mobile robots.