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In this video we hack apart a bread board to create a 5 volt power distribution strip. The 5 volts comes from the center pin in the motor c…

Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…

Figuring out the mass of Oxygen we have at a given P, V, and T, and why we need to check the units of R. Chemistry Did you know that everyt…

Find out how a cell that is permeable to one ion can become charged (either positive or negative) if there is permeability and a concentrat…

Using position-time graphs and number lines to find displacement and distance traveled. Class 11 Physics (India) - Hindi To help students w…

Think through the result of getting a new heart, and how the heart can still maintain homeostasis when the nerves are no longer around. Ris…

Gibbs free energy and equilibrium constant of dehydration reaction. From 2015 AP Chemistry free response 2c. Chemistry Did you know that ev…

Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…

Acceleration of two masses connected by string-pulley system. Physics Learn about the basic principles that govern the physical world aroun…

Definition of circuit terms: element, component, node, branch, mesh, and loop Class 12 Physics (India) It is now time to dive deeper into t…

Using shell model diagram to relate absorption to emission. Derives relationship between emitted photon and energy levels, the Balmer-Rydbe…

We can see interference in action if we shine laser light through two slits onto a screen Class 12 Physics (India) It is now time to dive d…

Now that we know what path–time diagrams are, let's see what happens when we bring along a friend! Physics Learn about the basic principles…

Let's see how we can exploit the cut off and saturation behaviour of a transistor and build an incredibly efficient switch. Class 12 Physic…

Sal analyzes various graphs to find intervals where the derivative of the graphed function is positive or negative. Class 11 Physics (India…