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: Soldering Safety
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree3 minutes
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Electrical engineering: Move block
Ready, set... start your engines! Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also hav…
VideoFree2 minutes
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Electrical engineering: Ideal circuit elements
Introduction to the most common circuit elements: resistor, capacitor, and inductor. Introducing the current-voltage equations for these el…
VideoFree7 minutes
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Electrical engineering: Virtual ground - examples
Using the "virtual ground" idea, we reexamine the inverting op-amp and find a solution much quicker. We apply the virtual ground method to …
VideoFree6 minutes
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Electrical engineering: What is inside a coffee maker?
In this video we explore what is inside a coffee maker, how it is made, and how it works. Electrical engineering Learn about electricity, c…
VideoFree14 minutes
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Electrical engineering: Switch statements & logic
Control switch statments using logic Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also …
VideoFree7 minutes
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Health and medicine: Emphysema treatment
The best way to prevent and manage emphysema is to stop smoking. Learn how drugs such as bronchodilators, antibiotics, and steroids can be …
VideoFree10 minutes
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Health and medicine: What is gastroenteritis?
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree8 minutes
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Health and medicine: What is pneumonia?
Pneumonia is a medical condition where lung tissue becomes inflamed, usually caused by a virus or bacteria. Learn how shortness of breath, …
VideoFree10 minutes
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Health and medicine: What is syphilis?
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree9 minutes
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Health and medicine: What is shigellosis?
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree5 minutes
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Health and medicine: Substance use disorders
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree8 minutes
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Health and medicine: What is a stroke?
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree11 minutes
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Health and medicine: Blood brain barrier and vasogenic edema
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree6 minutes
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Chemistry: Boiling point comparison: AP Chemistry multiple choice
Comparing the boiling point of nonane and 2,3,4-trifluoropentane. A sample multiple choice problem from the 2014 AP course description. Che…
VideoFree6 minutes