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Physics Girl
How to Shrink a Quarter with Electricity
How an 8000V electromagnet can be used to shrink a quarter. The interplay between electric and magnetic forces leads to the Lorentz Force and Faraday’s law of induction which can be used to shrink a quarter, or any other type of metal coin.
Curated Video
The Locker Riddle
Understanding factorization makes seemingly huge math problems a lot easier to solve. Let's try it out with the Locker Riddle! Probability 5/5
Kids Academy
Worksheets: Preschool & Kindergarten Learning - Virtual Learning & Real-Life Practice
Our new app Worksheets: Preschool & Kindergarten Learning already available on the App Store: https://smart.link/59833db06a6b8 and Google Play: https://smart.link/597210af6eb83 Subscribe to our channel: https://goo.gl/iG2Bdr Trace and...
Khan Academy
Banking 18: Big Picture Discussion
Sal further ponders the meaning of wealth in this video, which explores the values of gold, land, and money. Touching on Adam Smith's definition of wealth, the presentation discusses the philosophy of utility and what different media of...
Khan Academy
FRB Commentary 2: Deposit Insurance
Going into more detail about the potential weaknesses of fractional reserve banking, this video introduces some of the ways the economy has been engineered to address these issues, such as the "lender of last resort" and insurance...