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

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

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

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

Khan Academy provides various free introductory computer science video lessons. Topics include algorithms, cryptography, information theory, computer hardware and software,...

This course teaches how MOS transistors work, and how to model them. The understanding provided in this course is essential not only for device modelers, but also for designers...

This online course explores the fundamentals of JavaScript, the programming language of the Web.The course was designed for learners who have some knowledge of HTML and CSS and...

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

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

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

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

This online course teaches how to use color effectively to create attractive and useable websites.

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

This online course (part 2 of 2 courses) teaches how to build powerful interactive applications with this popular JavaScript library. React is an open source library developed...

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

This course provides a selection of individual lessons and analyses from experts on the 2020 corona virus outbreak. It includes topics such as an epidemic overview, fatality...

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

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

Khan Academy provides various free introductory mathematics video lessons. Topics include elementary math, algebra, geometry, calculus, trigonometry, differential equations,...