How tough is the new £5 note?

The UK’s new £5 bank note - made of polymer rather than paper - gets the “chemistry treatment“. Lots of raw footage: Featuring Professor Sir Martyn Poliakoff and Neil Barnes. Gun cotton: Gold vault: Film by Brady Haran Music by Henrik Johansson Support us on Patreon: Discuss on Brady’s subreddit: With thanks to the Garfield Weston Foundation More chemistr