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

Khan Academy provides various free introductory video lessons on astronomy and cosmology. Topics include the scale of the universe, the Big Bang, stars, black holes, galaxies,...

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

This online course teaches basic computing principles and foundational knowledge of the Internet and World Wide Web for absolute beginners.

Khan Academy provides various free introductory chemistry video lessons. Topics include atoms and compounds, chemical reactions, the periodic table, chemical bonds,...

This online course teaches how to design and build websites by learning the basic principles of design like branding, color theory, and typography.

This course teaches how to program in C++, which is a language well-respected for its flexibility and low-level functionality. It is used in the development of operating...

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

This online course gives an introduction to the programming language Python.

This online course teaches the fundamental concepts of Blockchain and how to implement them in Python. Learners with prior Python experience will be able to build their own...

This online course (MOOC) explores gender identity and the gender spectrum by analyzing the real-life experiences of six transgender children and their families.

In this online course, legendary producer "deadmau5" (Joel Zimmerman) teaches the art of producing electronic music. The course includes more than 20 video lessons and various...

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

In this online course, Shonda Rimes teaches the art of writing for television. The course includes more than 20 video lessons and various supplemental materials.

This online course teaches SCSS syntax, nesting, functions, and more regarding the Sass styling language.

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

In this online course, former U.S. Secretaries of State Madeleine Albright and Condoleezza Rice teach diplomacy. The course includes more than 15 video lessons and various...

Khan Academy provides various free introductory video lessons on electrical engineering. Topics include circuit analysis, amplifiers, semiconductors, electrostatics, signals and...

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

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...