Introduction to the vector dot product. Created by Sal Khan.
Every time a firm hires more labor, they get more output which means more revenue. In this video we begin thinking about how much incremental benefit a firm gets from hiring one more person. Created by Sal Khan.
Why did housing prices go up so much from 2000-2006 even though classical supply/demand would not have called for it. Created by Sal Khan.
Discussion of how the Great Compromise and Electoral College impact us today.
The pulmonary system including the lungs, larynx, trachea, bronchi, bronchioles, alveoli and thoracic diaphragm.
John Dickerson shares his views on how changes in media have influenced the national discourse over time with Sal. John Dickerson is co-host of CBS This Morning. He was previously CBS News' Chief Washington Correspondent, Political Director and anchor of Face The Nation. Dickerson is also a contributor to Slate's Political Gabfest and to The Atlantic. During the 2016 presidential campaign, Dickerson moderated CBS News' two presidential debates. Prior to CBS, Dickerson was Slate Magazine's Chief Political correspondent and covered politics for twelve years for Time magazine.
The Mohorovicic Seismic Discontinuity- boundary between crust and mantle (or Moho). Created by Sal Khan.
When there is a single buyer of labor this type of market is called a monopsonistic labor market. Learn how this changes the analysis of labor markets and why marginal factor cost is higher than the supply of labor in such markets.
How nitrogen is recycled in our biosphere in the nitrogen cycle, including nitrogen fixation.
An overview of the 2nd through 9th Crusades. Saladin retakes Jerusalem after nearly 90 years as a Crusader Kingdom in 1179. The sacking of Constantinople and the possible Children's Crusade. The Reconquista in what will eventually be Spain.
An overview of the incumbency advantage phenomenon.
What the "bully pulpit" is and how the State of the Union and mass media has enhanced the president's ability to directly influence opinion. Reagan footage from Reagan Presidential Library.
r greater than g but less inequality. A discussion with Sal Khan.
In the late 4th century BCE, the Maurya Empire under Chandragupta conquers most of North India. His son Bindusara continues the conquest into the south. Bindusara's son Ashoka (Asoka) takes the empire to its furthest extent, but then turns to a life of Buddhism and nonviolence. He is considered one of the prime catalysts for the spread of Buddhism.
Using the Rule of 72 to approximate how long it will take for an investment to double at a given interest rate. Created by Sal Khan.
Thomas Hobbes's Leviathan and the idea of a social contract.
After Jesus, the two most significant figures in Christianity are the apostles Peter and Paul/Saul. Paul, in particular, takes a leading role in spreading the teachings of Jesus to Gentiles (non Jews) in the Roman Empire.
Overview of the spread of Islam from the time of Muhammed to the Rashidun, Umayyad and Abbasid Caliphates. Discussion of Muslim conquest and conversion.
We investigate the independent development and spread of agriculture across the planet, throughout prehistory.
A Universe Smaller than the Observable. Created by Sal Khan.