A couple of problems involving Archimedes' principle and buoyant forces. Created by Sal Khan.
This video demonstrates how different points of the business cycle correspond to the production possibilities curve. The discussion includes unemployment, inflation, expansions, recessions and economic growth.
Video of Sal on CNN on October 10th discussing the credit crisis and a potential solution to it. Created by Sal Khan.
The consumer price index (CPI) is a measure used to calculation inflation. Learn about how the CPI is calculated, what it measures, and how it is used to track inflation in this video. Created by Sal Khan.
Julius Caesar installs Cleopatra as Pharaoh in Ptolemaic Egypt and becomes Dictator for Life, only to be assassinated by Brutus on the Ides of March.
Recall that the tax multiplier and expenditure multiplier magnify the effect of any change in spending or taxes. In this video, we use that fact to calculate the amount of spending or tax change necessary to close output gaps.
Calculating the dot and cross products when vectors are presented in their x, y, and z (or i, j, and k) components. Created by Sal Khan.
In this video we take a slightly different approach to understanding the difference between real and nominal values: find the value of an asset in a previous year's dollars. Created by Sal Khan.
How to calculate state taxes and take-home pay.Created by Sal Khan.
An option, like a call option, can provide leverage because it allows a bet on a stock to be multiplied many times. Learn how call options provide leverage in this video. Created by Sal Khan.
A call payoff diagram is a way of visualizing the value of a call option at expiration based on the value of the underlying stock. Learn how to create and interpret call payoff diagrams in this video. Created by Sal Khan.
Call Writer Payoff Diagram. Created by Sal Khan.
An introduction to campaign finance in the United States up to and after Citizens United: soft vs hard money, PACs and super PACs, the 2002 BCRA (McCain-Feingold Act).
An introduction to what cancer is and how it is the by-product of broken DNA replication.
Introduction to the capacitance of a two-plate capacitor. Created by Sal Khan.
How capillary action and the meniscus are related to intermolecular forces in water.
An introduction to the book Capital by Thomas Piketty. Created by Sal Khan.
Introduction to carbon 14 and using it to date fossils.
Carbon 14 Dating 1. Created by Sal Khan.
Introduction to carbon as a building block of life.