Tech WondersPlay

Zone 17

Cloud Citadel

Nine lessons of about three minutes each, every one with a live demo and a quick test.

  • Mind-Bending Math & Games×2
  • Quantum & Relativity
  • Energy, Heat & Motion
  • The Internet & Web
  • Inside the Computer
  • How Data Travels
  • Images, Screens & Games
  • Algorithms & Emergence
Play this zone
  1. 145Exponential GrowthRice on a ChessboardDouble a grain on every square and you'd bankrupt a kingdom
  2. 146Quantum MechanicsSchrödinger's Cat Was a JokeThe famous cat was meant to show how absurd the idea sounded
  3. 147Exponential GrowthThe Lily Pad RiddleIf lilies double daily and cover the pond on day 30, when was it half full?
  4. 148Electrical EngineeringThe Cooktop That Stays ColdInduction heats the pan directly with a changing magnetic field
  5. 149Search EnginesHow Google Ranked the WebA page matters when pages that matter point to it
  6. 150Text EncodingA Is 65Every letter you type is secretly a number
  7. 151Congestion ControlThe Internet's Traffic JamNetworks slow themselves down on purpose to avoid collapse
  8. 152Game DesignWhy Mario Has a MoustacheIn a 16×16 sprite, a moustache was easier to draw than a mouth
  9. 153AlgorithmsTwice the Data, Four Times the WaitHow fast a method slows down is what matters