Zone 12
Signal Storm
Nine lessons of about three minutes each, every one with a live demo and a quick test.
- Sound, Radio & Information×2
- The Internet & Web
- Energy, Heat & Motion
- Inside the Computer
- Images, Screens & Games
- Engineering & Machines
- Data & Probability
- Mind & Perception
- 100Interaction DesignThe Bottomless FeedRemove the bottom of the page and people forget to stop
- 101ElectromagnetismWhy Your Microwave Door Has HolesThe holes are too small for microwaves but big enough for light
- 102Operating SystemsWhy Restarting Fixes ThingsTurning it off and on again clears what went wrong
- 103InfraredYour Camera Sees Your TV RemotePoint a remote at your phone's camera and see the invisible light
- 104Wave InterferenceSilence Made of SoundNoise-canceling headphones add sound to make quiet
- 105SensorsYour Phone Knows Which Way Is UpA microscopic weight on springs senses every tilt
- 106ProbabilityPenney's GameLet me choose second and I'll win most coin-flip races
- 107AcousticsWhy You Hate Your Recorded VoiceYou normally hear yourself through your own skull
- 108NeuroscienceWhy You Can't Tickle YourselfYour brain predicts your own touch and cancels it