After meeting with Illinois Governor Pat Quinn and discussing the state’s pension obligations, Sal has created two videos about the issue. The first looks at how pensions differ from 401(k)s and …
First programming challenge champs
Sal picked three submissions to our first programming challenge and made companion videos for them. Congratulations to our challenge champs: Peter Collingridge, tetef, and Justin Helps! Thanks to …
CS challenge: Accretion disk
Sal has a new programming challenge – create a simulation that demonstrates how when gravity pulls together a cloud of particles, the matter accretes into a rotating disk like our solar system …
Door number one, door number two, or door number three?
Khan Academy volunteer Peter Collingridge has created a computer science simulation that demonstrates what happens when you play “Let’s Make a Deal” with Monty Hall and have to …
Continue Reading about Door number one, door number two, or door number three? →
History of the Alphabet
Instructor Brit Cruise dives into the History of the Alphabet, the fourth video in his series on Information Theory. If you understand the alphabet, you’re ready for information theory! The full …
Latest snapshot of dubbed and re-done videos, sorted by traffic on channel (daily visits/video). …
https://blog.khanacademy.org/latest-snapshot-of-dubbed-and-re-done-videos-11/