Zone 19
Turbine Ridge
Nine lessons of about three minutes each, every one with a live demo and a quick test.
- Mind-Bending Math & Games×2
- Mind & Perception
- Space, GPS & Maps
- The Internet & Web
- Energy, Heat & Motion
- Security & Scams
- Codes, Cryptography & Blockchain
- Quantum & Relativity
- 163ArithmeticThe Missing DollarA famous money riddle works by adding the wrong things
- 164Auditory PerceptionThe Cocktail Party EffectYour brain can follow one voice in a crowded room
- 165GeometryPythagoras Without AlgebraSlide four triangles and the theorem proves itself
- 166AstrodynamicsEscape SpeedLeaving Earth for good needs about 11 kilometers a second
- 167Internet CultureError 418: I'm a TeapotAn April Fools' joke that became part of real internet standards
- 168Electrical EngineeringThe War of the CurrentsEdison and Tesla fought over how electricity should reach your home
- 169Password HygieneCredential StuffingOne leaked password can open many unrelated accounts
- 170Number TheoryThe Prime LockMultiplying is easy; un-multiplying is the secret behind online security
- 171Particle PhysicsGhost ParticlesTrillions of neutrinos pass through you every second