Tech WondersPlay

Zone 18

Firewall Keep

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

  • Mind-Bending Math & Games×2
  • Security & Scams×2
  • Engineering & Machines
  • Data & Probability
  • Sound, Radio & Information
  • Computing History & Legendary Bugs
  • AI & Machine Learning
Play this zone
  1. 154Infinite SeriesAchilles and the TortoiseInfinitely many steps can take finite time
  2. 155Bridge EngineeringSuspension BridgesCables turn huge loads into tension they can handle
  3. 156Recreational MathematicsThe 1089 TrickAny three-digit number leads to the same answer
  4. 157ProbabilityThe 100 Prisoners RiddleA clever plan turns near-certain death into a 31% chance
  5. 158PsychoacousticsWhy Ads Sound LouderTwo sounds at the same volume can feel completely different
  6. 159Computing HistoryThe Women Who Programmed ENIACSix women programmed the first general-purpose electronic computer
  7. 160Language ModelsSame Question, Different AnswerA dial called temperature makes chatbots creative or predictable
  8. 161CryptographyHow Long to Crack It?Every extra character multiplies an attacker's work
  9. 162CybersecurityHow Sites Store Your PasswordA good website never actually knows your password