How to Make: The Toothbrush

BBC FOUR

Thursday 16 December 2021  01:00 - 02:00 (60 mins)
2/3. Designer and materials engineer Zoe Laughlin explores the science - and conducts her own experiments - behind creating a more sustainable solution for brushing our teeth. Also in HD. [S]

How to Make: The Toothbrush may be available on playback
How to Make: The Toothbrush (BBC FOUR) Thursday 16 December 2021 01:00 - 02:00