Fitness Tracker
Free on SceneLog — log in or create an account to track it.
Overview
Hannah Fry finds out how 1970s car crashes helped us to count our steps, why WWII dog-fights led to a crucial health monitor and how fitness trackers are even being used to catch killers.
Comments
Be the first to comment.
Leave a comment
Your email won't be published. Comments are reviewed before they appear.