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Khan Academy provides various free introductory video lessons on the history of the United States.

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

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

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

This online course teaches intermediate techniques to transform table data in SQL.

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

This course teaches how to program in Ruby, a flexible language used to create many websites.

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

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...

This online course shows how to use IBM's Personality Insights API and interact with Twitter; participants should be familiar with Python for this course.

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

This online course teaches how to manage data with SQL, including mastering complex commands to manipulate and query data stored in relational databases. It includes topics such...

This series of short YouTube video lessons explains the basic fundamentals of automotive engineering for beginners. It includes topics like engines, gearbox, transmission, and...

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

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

This online course gives an introduction to Swift, a programming language developed by Apple for iOS and macOS.

Khan Academy provides various free introductory anatomy video lessons. Topics include the circulatory system, respiratory system, urinary system, hematologic system, immunologic...

This online course teaches how to publish a personal website to the public Internet.

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...

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