The Geo Quiz answer today is Nancy, France; birthplace of mathematician Henri Poincare. He posed a problem known as the Poincare Conjecture. Now a Russian mathematician has solved it. Anchor Marco Werman finds out more from reporter Galina Stolyarova.
This is The World
The World is a public radio program and podcast that crosses borders and time zones to bring home the stories that matter.
Follow The World
Subscribe to The World’s Latest Edition podcast for free using your favorite podcast player:
