The Secret Genius of Modern...

BBC TWO

Thursday 8 December 2022  20:00 - 21:00 (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) Thursday 8 December 2022 20:00 - 21:00