chapters · 6
01FREE
Conductivity: Your Finger As Conductor
Discover why your finger works on touchscreens but your glove doesn't—it's all about electrical conductivity
→02PREMIUM
Capacitive Sensing: Electric Field Basics
Learn how invisible electric fields detect your finger's presence without any physical pressure
→03PREMIUM
The Invisible Grid: Coordinate Detection
Uncover the hidden mesh of sensors that pinpoints exactly where you touch with millimeter precision
→04PREMIUM
Multi-touch: How Two Fingers Don't Confuse It
Understand how modern touchscreens track multiple fingers simultaneously without ghost touches
→05PREMIUM
Why Gloves Don't Work And Stylus Pens Do
Explore how material properties enable or block touch detection—and how to work around it
→06PREMIUM
Design Your Own Touch Interface
Apply everything you've learned to design custom touch gestures and interfaces for real-world challenges
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