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This is an online lecture about the design and implementation of secure computer systems. Lectures cover threat models, attacks that compromise security, and techniques for...

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

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

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

Khan Academy provides various free introductory macroeconomics video lessons. Topics include national income and the GDP, inflation, demand and supply, business cycles, the...

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...

Effective field theory is a fundamental framework to describe physical systems with quantum field theory.

This online lecture provides an introduction to optical science with elementary engineering applications.

This online lecture series explores efforts by linguists and educators to make their research more inclusive, accessible and hospitable.

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 series of online lectures explores the physical and social form of cities. It covers theories about the form that settlements should take and attempts a distinction between...

The course facilitates a close reading of Don Quixote in the artistic and historical context of renaissance and baroque Spain. Students are also expected to read four of...

This course teaches how to program in Go (Golang), an open-source programming language supported by Google.

This online lecture by Yale University provides an introduction to the principles and methods of physics.The course covers Newtonian mechanics, special relativity, gravitation,...

This online lecture deals primarily with equilibrium properties of macroscopic systems, basic thermodynamics, chemical equilibrium of reactions in gas and solution phase, and...

Basic principles of statistical mechanics are examined in this online lecture, such as the laws of thermodynamics and the concepts of temperature, work, heat, and entropy....

This online lecture provides a comprehensive overview of the scientific study of thought and behavior. It explores topics such as perception, communication, learning, memory,...

This course teaches how to program in PHP, which is one of the most popular languages of modern web development.

The course covers basic concepts of biomedical engineering and their connection with the spectrum of human activity. It is designed for science and non-science majors.

This class is a study of Milton's poetry, with attention paid to his literary sources, his contemporaries, his controversial prose, and his decisive influence on the course of...