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Khan Academy: 2757 products

Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere. All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get …

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Electrical engineering: AC analysis intro 1

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Solving circuits with differential equations is hard. If we limit ourselves to sinusoidal input signals, a whole new method of AC analysis …

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Electrical engineering: Robot construction

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Basic construction to get started Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also hav…

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Class 11 Physics (India): Angular momentum of an extended object

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In this video David derives and shows how to use the formula for the angular momentum of an extended object. Class 11 Physics (India) Let's…

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Electrical engineering: Power connector for the Arduino

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In this video we show you how to create a power connector for your arduino. Electrical engineering Learn about electricity, circuit theory,…

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AP®︎ Chemistry: Group trend for ionization energy

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Explaining trend in ionization energy down a group using concepts of nuclear charge, electron shielding, and distance of electrons from nuc…

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Class 11 Physics (India): Derivative & the direction of a function

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Sal analyzes various graphs to find intervals where the derivative of the graphed function is positive or negative. Class 11 Physics (India…

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Health and medicine: Ablation

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Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…

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Health and medicine: Asthma longterm treatment

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Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…

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Class 11 Physics (India): Introduction to limits (old)

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An older video of Sal introducing the notion of a limit. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 phys…

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Class 12 Physics (India): Magnifying power of telescope

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Let's figure out the magnifying power (magnification) of our telescope. Class 12 Physics (India) It is now time to dive deeper into the wor…

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Health and medicine: The basal ganglia - Details of the indirect pathway

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Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…

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Health and medicine: Hypertrophic cardiomyopathy: Pathophysiology and diagnosis

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Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…

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Health and medicine: Putting it all together - Pathophysiology of Parkinson's disease

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Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…

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Class 11 Physics (India): Antiderivatives and indefinite integrals

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What's the opposite of a derivative? It's something called the "indefinite integral". Class 11 Physics (India) Let's learn, practice, and m…

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Electrical engineering: Virtual ground

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The idea of a "virtual ground" makes some simplifying assumptions, giving us an elegant and simple way to look at op-amp circuits. Electric…