Do you know how many calories are in a macadamia nut? This video segment highlighting a Calorimetry experiment will give you the answer.
In this video we wire Bit-zee's camera's shutter and power functions to some transistors on the bread board and then we connect the transistors to the Arduino. Created by Karl Wendt.
Now we'll add a lens to our camera and explore the idea of an f-stop.
This video shows you how to reduce the complexity of your Bit-zee while improving the speed of your Bit-zee digital camera. Created by Karl Wendt.
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).
Learn about one town's conflict over the issue of spraying pesticides to combat disease-carrying insects, in this video segment from Greater Boston.
In this video segment adapted from NOVA scienceNOW, scientists discuss a family of genes called FOXO that can significantly extend life span in worms—and in humans.
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.
The capacitor current-voltage equation in derivative form and integral form. Created by Willy McAllister.
A basic overview of capacitors and capacitance. By David Santo Pietro.
The effect on voltage and current when capacitors are constructed in parallel in a circuit. By David Santo Pietro.
When capacitors are connected one after another, they are said to be in series. For capacitors in series, the total capacitance can be found by adding the reciprocals of the individual capacitances, and taking the reciprocal of the sum. Therefore, the total capacitance will be lower than the capacitance of any single capacitor in the circuit. Created by David SantoPietro.
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.
This 3-room video tour of the U.S. Capitol, featuring the Crypt, Rotunda, and National Statuary Hall.
This 3-room video tour of the U.S. Capitol, featuring the Crypt, Rotunda, and National Statuary Hall, focuses on information relevant to students taking middle school level U.S. history and civics courses.
Carbon 14 Dating 1. Created by Sal Khan.
Introduction to carbon 14 and using it to date fossils.
Introduction to carbon as a building block of life.