It's time to open the vaults on something that many of us use every day – coins! There's some 29 billion coins in circulation, but how are they made and what engineering challenges are present in making so many shiny, tiny pieces of metal?
Undercover Engineers
23 clip(s)
Latest Fun Kids Podcast Episodes
4,251 clip(s)
Artificial Intelligence
Our Homes (Heritage Heroes)
On the High Street (Heritage Heroes)