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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Health and medicine: New perspective on the heart
Take a look at the heart in cross section, looking down at it from the top! Rishi is a pediatric infectious disease physician and works at …
VideoFree9 minutes
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Class 11 Physics (India): Basic derivative rules (Part 1)
Sal introduces the Constant rule, which says that the derivative of f(x)=k (for any constant k) is f'(x)=0. He also justifies this rule alg…
VideoFree2
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Class 12 Physics (India): PN breakdown and avalanche
What happens if the reverse biased voltage gets too high? The diode undergoes breakdown In this video we will explore what this 'breakdown'…
VideoFree9
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Organic chemistry: R,S system
How to assign the configuration of a chirality center using the R,S system Organic chemistry Sal and Jay cover topics covered in college or…
VideoFree10 minutes
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Class 11 Physics (India): Deriving formula for centripetal acceleration from angular velocity
Deriving formula for centripetal acceleration in terms of angular velocity. using linear speed formula. Class 11 Physics (India) Let's lear…
VideoFree6
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Physics: Magnet near compass
Exploring the effect of a permanent magnet on compass. What is going on? Physics Learn about the basic principles that govern the physical …
VideoFree1 minute
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Organic chemistry: Keto-enol tautomerization (by Sal)
Keto-enol tautomerization. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of b…
VideoFree8 minutes
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Class 11 Physics (India) - Hindi: The dot product (Hindi)
Introduction to the vector dot product. Class 11 Physics (India) - Hindi To help students who prefer to learn by watching Hindi videos, we'…
VideoFree9
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Class 11 Physics (India): Derivation of beat frequency formula
In this video David derives the formula for beat frequency. Class 11 Physics (India) Let's learn, practice, and master topics of class 11 p…
VideoFree10 minutes
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Health and medicine: How white blood cells move around
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree9 minutes
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Class 11 Physics (India): Vector components from magnitude & direction
Sal finds the components of a couple of vectors given in magnitude and direction form. Class 11 Physics (India) Let's learn, practice, and …
VideoFree10
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Organic chemistry: Friedel-Crafts acylation
The mechanism of acylation. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of …
VideoFree9 minutes
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Class 11 Physics (India) - Hindi: Specific gravity (Hindi)
In this video Ram explains what specific gravity means. He also shows how to calculate the value for specific gravity and use it to determi…
VideoFree14
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Health and medicine: General overview of the RAAS system: Cells and hormones
Learn the important cells and hormones that are working together to control your blood pressure! Rishi is a pediatric infectious disease ph…
VideoFree14 minutes
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Health and medicine: Treating type II diabetes - A practical approach
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree2 minutes