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: Heart attack (myocardial infarction) pathophysiology
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree12 minutes
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Health and medicine: What is iron deficiency?
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree13 minutes
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Health and medicine: Depolarization waves flowing through the heart
Get a clearer idea of what a "Depolarization Wave" means and how it goes from cell to cell through the entire heart! Rishi is a pediatric i…
VideoFree12 minutes
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Health and medicine: Memory reconstruction, source monitoring, and emotional memories
Learn about memory reconstruction, source monitoring, and flashbulb memories. Health and medicine The medical world can be a confusing plac…
VideoFree5 minutes
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Health and medicine: Fetal circulation right before birth
Watch how the blood flows through the fetal circulation and compare it to what happens in the baby's body. Rishi is a pediatric infectious …
VideoFree12 minutes
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Health and medicine: What is a pleural effusion?
Pleural effusions are when excess fluid get caught between two layers of tissue (the visceral and parietal pleurae) surrounding the lungs. …
VideoFree6 minutes
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Health and medicine: Cancerous colon tissue
Dr. Andy Connolly of Stanford Medical School shows us what cancerous colon tissue looks like Health and medicine The medical world can be a…
VideoFree13 minutes
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Health and medicine: Reimagine the pressure volume relationship
Understand what is happening at the cellular level to cause two identical left ventricular volumes to have such different pressures! Rishi …
VideoFree14 minutes
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Health and medicine: Estrogen
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree7 minutes
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Health and medicine: Two flu vaccines (TIV and LAIV)
Understand the differences between TIV (dead virus) and LAIV (alive, but weakened virus) and who should get which one. Rishi is a pediatric…
VideoFree11 minutes
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Health and medicine: Autonomic vs somatic nervous system
Understand the different divisions of the brain that control our muscles. By Raja Narayan. Health and medicine The medical world can be a c…
VideoFree4 minutes
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Physics: Compass build (stroke direction)
Does the direction which we stroke the needle determine the final orientation? Physics Learn about the basic principles that govern the phy…
VideoFree1 minute
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Physics: Question 3a: 2015 AP Physics 1 free response
Graphing energy versus position for a block accelerated by a spring and stopped by friction. Physics Learn about the basic principles that …
VideoFree8 minutes
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Class 11 Physics (India): Worked example: motion problems (with definite integrals)
What can you say about the velocity and position of a particle given its acceleration. Class 11 Physics (India) Let's learn, practice, and …
VideoFree9
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Class 11 Physics (India): Launching and landing on different elevations
More complicated example involving launching and landing at different elevations Class 11 Physics (India) Let's learn, practice, and master…
VideoFree15 minutes