How humans have shaped plants and animals through artificial selection and domestication.
Binary fission, budding, mitosis, fragmentation, parthenogenesis and sexual reproduction.
Gavrilo Princip assassinated Austro-Hungarian Archduke Franz Ferdinand, setting off World War I. Created by Sal Khan.
Octavian is victorious over Marc Antony and Cleopatra and becomes Augustus, first emperor of the Roman Empire.
In addition to discretionary fiscal policy, there are policies and institutions that can help reduce swings in the business cycle. This video discusses the role of automatic stabilizers in the business cycle.
Sal solves a word problem to find average velocity and speed of an object in one-dimension.
An overview of how Tenochtitlan creates the tributary Aztec Empire in the 15th Century (from the Triple Alliance). They rule until being conquered by Hernando Cortez. Created by World History Project.
Back of the envelope calculation of which office space to rent. Created by Sal Khan.
Backwardation and the theory of Normal Backwardation. Created by Sal Khan.
Thinking about why backwardation in commodities markets is bullish. Created by Sal Khan.
Alternate plans and moral hazard. Created by Sal Khan.
Why a CDO could be worth nothing even though they are "collateralized". Created by Sal Khan.
A real life example of a transaction involving CDOs. Created by Sal Khan.
Can the bailout work? Created by Sal Khan.
A solution that is MUCH fairer that has a MUCH better chance of working! Created by Sal Khan.
More on the "Plutsky Plan". Created by Sal Khan.
Review of balance sheets. Difference between illiquidity and insolvency. Created by Sal Khan.
Hypothetical bank balance sheet. What book value means. Created by Sal Khan.
What it means when the market value of a stock is different from its book value. Created by Sal Khan.
Different ways of accounting for an asset. Mark-to-model vs. mark-to-market. Created by Sal Khan.