ABC Zoom - How touchscreens work

Ever wondered how swiping your finger makes a touchscreen work? In this animation, see how invisible electric fields mess with your finger so your phone can pinpoint what you're touching.

Key concepts: electric fields, charge, capacitive touch screens

ABC Zoom is a science-based game set in deep space.

The space ship Polaris has come under attack. The ship and her captain have sustained damage that can only be repaired at the molecular or cellular level.

Your mission: Use the futuristic tool you'll find on the ship to zoom down to the microscopic and atomic levels, reviving the captain and her ship.