Understand how the world works.
A series that takes everyday life apart: each episode explains how something you use without thinking works, in 10 minutes with practice.
Series
- What happens when you pay with a card.
Your money's 3-second journey: from the terminal to your bank through four checks, and why it sometimes says no.
- How the map knows where you are.
How GPS locates you with three satellites and a corrected clock, and why it fails indoors.