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This online lecture explores the implications of extracting and using energy resources, metals and mineral resources.

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.

In this online course, Academy Award–winning filmmaker Spike Lee teaches his approach to directing, writing, and producing. The course includes more than 15 video lessons and...

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

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

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

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...

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

These short online courses provided by Skillshare cover various topics around personal productivity, including motivation, project management, time management, and useful...

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

This online course teaches how to create animations as well as how to test an app, how to use Google Play Services, and how to simplify networking by using Retrofit and RxJava.

These short online courses provided by Skillshare cover various topics around web development, including HTML, CSS, Javascript, Wordpress, and various other technologies.

This online lecture explores the dynamics of evolution, including various mathematical models.

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

This online lecture gives an introduction to cooperation systems related to digital computer systems.

This online lecture focuses on the equations and techniques most useful in science and engineering.

The goal of this online lecture is to illustrate the spectroscopy of small molecules in the gas phase.

This online course covers matrix theory and linear algebra, emphasizing topics useful in other disciplines such as physics, economics and social sciences, natural sciences, and...

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

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