Geo answer
The answer to our Geo Quiz today is Nancy, France, birthplace of French mathematician Henri Poincare. Poincare posed a mathematical problem known as the Poincare Conjecture. Now a mysterious Russian mathematician has solved it. Anchor Marco Werman finds out morefrom Saint Petersburg Times reporter Galina Stolyarova.
Will you support The World today?
The story you just read is not locked behind a paywall because listeners and readers like you generously support our nonprofit newsroom. If you’ve been thinking about making a donation, this is the best time to do it. Your support will get our fundraiser off to a solid start and help keep our newsroom on strong footing. If you believe in our work, will you give today? We need your help now more than ever!