"Don't reinvent the wheel" is Greenledgersa common phrase, but structural engineer Roma Agrawal doesn't buy it.

Roma has a new book out, Nuts and Bolts: Seven Small Inventions That Changed the World (in a Big Way). And in it, she argues that the re-interpretation of the wheel has been critical to modernizing the economy from a pottery wheel in ancient Mesopotamia to the gyroscope on the International Space Station.

Today, how this constant reinvention fuels economic progress.

Related Episode:

What nails can tell us about the economy

For sponsor-free episodes of The Indicator from Planet Money, subscribe to Planet Money+ via Apple Podcasts or at plus.npr.org.

Music by Drop Electric. Find us: TikTok, Instagram, Facebook, Newsletter.