Zone 27
Server Farm
Nine lessons of about three minutes each, every one with a live demo and a quick test.
- Security & Scams
- Codes, Cryptography & Blockchain
- Quantum & Relativity
- Energy, Heat & Motion
- Data & Probability
- Inside the Computer
- How Data Travels
- Images, Screens & Games
- Algorithms & Emergence
- 235Wireless SecurityThe Relay TheftThieves can stretch your car key's signal from inside your house
- 236Distributed SystemsThe Byzantine GeneralsHow do you agree on a plan when some messengers lie?
- 237RelativityTime Runs Faster UpstairsAtomic clocks tick faster just 33 centimeters higher
- 238Phase TransitionsWater That Freezes on CommandA quiet liquid can stay below freezing until something disturbs it
- 239Threat AnalysisThe 99% Test That's Usually WrongWith a rare condition, most positive results can be false alarms
- 240ConcurrencyDeadlockTwo programs can wait for each other forever
- 241Wireless CommunicationWhy Wi-Fi Slows Down in a CrowdOnly one device can speak on a channel at a time
- 242Computational PhotographyPanorama GlitchesMoving people turn into monsters in panoramic photos
- 243AlgorithmsBill Gates' Pancake ProblemHis only research paper was about flipping pancakes