The Secret Genius of Modern...

BBC TWO

Wednesday 26 July 2023  19:00 - 20:00 (60 mins)
...Life: Fitness Tracker. 5/6. Hannah Fry finds out how 1970s car crashes helped us to count our steps. Also in HD. [S,AD]

The Secret Genius of Modern... may be available on playback
The Secret Genius of Modern... (BBC TWO) Wednesday 26 July 2023 19:00 - 20:00