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: Dreaming
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree4 minutes
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Health and medicine: Angiotensin 2 raises blood pressure
See how Angiotensin 2 effects 4 target "organs" to increase blood pressure. Rishi is a pediatric infectious disease physician and works at …
VideoFree11 minutes
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Health and medicine: Diagnosing depression
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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Electrical engineering: Spout motor wiring
Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections that let you get down a…
VideoFree12 minutes
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Electrical engineering: Trigonometry review
A quick review of some ideas from trigonometry that will help us with AC analysis. The definitions of sine, cosine, and tangent, circles, d…
VideoFree8 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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Electrical engineering: What is inside a DVD player? (1 of 5)
In this video we explore the housing and functions of a DVD player. Electrical engineering Learn about electricity, circuit theory, and int…
VideoFree4 minutes
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Health and medicine: ALS - Amyotrophic lateral sclerosis
Sal explains the disease ALS, amyotrophic lateral sclerosis, and takes the "ice bucket challenge." Health and medicine The medical world ca…
VideoFree4 minutes
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Electrical engineering: Tools and parts to build a Spout
Make Spout a low cost beetle bot that can avoid obstacles. Spout is low cost and can be made without solder. Electrical engineering Learn a…
VideoFree1 minute
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Health and medicine: Systolic murmurs, diastolic murmurs, and extra heart sounds - Part 2
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree15 minutes
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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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Health and medicine: Small intestine 1: Structure
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: Bernoulli's equation of total energy
Learn how total energy of a fluid helps explain why fluids can move from low pressure to high pressure! Rishi is a pediatric infectious dis…
VideoFree7 minutes
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Physics: Projectile motion (part 5)
How fast was the ball that you threw upwards? Physics Learn about the basic principles that govern the physical world around us. Solid unde…
VideoFree10 minutes
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Health and medicine: Diagnosing active TB
Find out how we can use clinical clues to help figure out if someone has active TB infection. These videos do not provide medical advice an…
VideoFree16 minutes