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Topics covered in this online lecture (part 2) include the general formalism of quantum mechanics, harmonic oscillator, quantum mechanics in three-dimensions, angular momentum,...

This online course introduces microeconomic concepts and analysis, supply and demand analysis, theories of the firm and individual behavior, competition and monopoly, and...

This online lecture covers the experimental basis of quantum physics. It introduces wave mechanics, Schrödinger's equation in a single dimension, and Schrödinger's equation in...

Khan Academy provides various free introductory microeconomics video lessons. Topics include supply, demand, market equilibrium, scarcity, preferences, consumers and producers,...

This online video lecture series gives an introduction to Computer Science, Internet technology and the basics of computer hardware (CS105 class at Stanford University). The...

Free Vietnamese 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.)

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...

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

This online lecture includes the energy levels, the statistical behavior and internal energy, energy transport in the forms of waves and particles, scattering and heat...

This course presents the principles of evolution, ecology, and behavior for students beginning their study of biology and of the environment.

In this online course, "Gangster Gardener" Ron Finley teaches gardening skills and techniques, including how to grow your own food, keep your plants alive, and find beauty and...

This is an online lecture taking a practical approach to proving problems can't be solved efficiently (in polynomial time and assuming standard complexity-theoretic assumptions...

This series of online courses explores the fundamental building blocks of computer science, including programming, development, algorithms, and data structures. The program...

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,...

This advanced-level online lecture series provides an overview of the Geometric Anatomy of Theoretical Physics.The aim of the course is to provide proper mathematical language...

This online video lecture series explores various technology trends and fields of innovation.

This video lecture discusses the computational complexity theory, including the Chomsky hierarchy, (un-) decidability,SPACE versus TIME, EXPSPACE and more advanced topics.

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

This online lecture series gives an introduction to the fundamental algorithmic approaches for creating robot systems that can autonomously manipulate physical objects in...