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 …
check_box_outline_blank
Health and medicine: Meet the placenta!
Learn how the needs of the fetus are met by the placenta, which is a special organ that belongs to both the mother and the fetus! Rishi is …
VideoFree13 minutes
check_box_outline_blank
Health and medicine: Learn how a stethoscope can help determine blood pressure
Learn how Dr. Korotkoff cleverly used a stethoscope to determine blood pressure, and that we still use his trick today! Rishi is a pediatri…
VideoFree5 minutes
check_box_outline_blank
Health and medicine: Getting Ea (arterial elastance) from the PV loop
Find out how to use the PV loop to draw the Ea (Arterial Elastance) line, and what it represents. Rishi is a pediatric infectious disease p…
VideoFree11 minutes
check_box_outline_blank
Health and medicine: What is bronchiolitis?
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree8 minutes
check_box_outline_blank
Health and medicine: Heart attack (myocardial infarct) diagnosis
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree11 minutes
check_box_outline_blank
Electrical engineering: Non-inverting op-amp
An op-amp can be used to amplify a voltage. The gain is determined by the ratio of two resistors. Electrical engineering Learn about electr…
VideoFree13 minutes
check_box_outline_blank
Electrical engineering: Application of the fundamental laws (solve)
We solve the equations created by direct application of the fundamental laws: Ohm's Law and Kirchhoff's Laws. (Part 2 of 2) Electrical engi…
VideoFree9 minutes
check_box_outline_blank
Electrical engineering: Lead Lag
Sine and cosine look similar, except they are out of phase. When we talk about sine and cosine as a function of time, the difference is cal…
VideoFree7 minutes
check_box_outline_blank
Electrical engineering: What is inside a DVD player? (4 of 5)
In this video we explore the DVD ROM components inside a DVD player. Electrical engineering Learn about electricity, circuit theory, and in…
VideoFree8 minutes
check_box_outline_blank
Electrical engineering: DLab: Inspired by sumo robots
Inspiration from Khan Academy's Discovery Lab Electrical engineering Learn about electricity, circuit theory, and introductory electronics.…
VideoFree2 minutes
check_box_outline_blank
Electrical engineering: LC natural response example
We solve the voltage and current of an example LC circuit with given values for L and C, and an initial charge on the capacitor Electrical …
VideoFree7 minutes
check_box_outline_blank
Electrical engineering: What is inside an alarm clock radio?
In this video we explore what is inside an alarm clock, how it is made, and how it works. Electrical engineering Learn about electricity, c…
VideoFree14 minutes
check_box_outline_blank
Electrical engineering: Bumper switches
In this video we create and wire Bit-zee's bumper switches Electrical engineering Learn about electricity, circuit theory, and introductory…
VideoFree10 minutes
check_box_outline_blank
Electrical engineering: Spider's motor controller
In this video we show you how to connect and wire Spider's motor controller. Electrical engineering Learn about electricity, circuit theory…
VideoFree3 minutes
check_box_outline_blank
Electrical engineering: Power wires and on/off switch
In this video we show you how to switch on and off Bit-zee's electrical power. Electrical engineering Learn about electricity, circuit theo…
VideoFree5 minutes