The periodic table turns 150

Greek-born billionaire John Catsimatidis rose from working in a New York grocery store to build the Gristedes supermarket chain and a wider business empire after leaving university before graduating. Now head of the Red Apple Group, with interests spanning real estate, energy, av ...  Show more

Headspace started life as a mindfulness app. Now it's partnering with the US Navy and investing in artificial intelligence for mental health support.The company's CEO Tom Pickett speaks to us about therapy, the increasing role of technology, and tackling burnout at scale.If you'd ...  Show more

Helium is full of contradictions. It’s the second most abundant element in the universe, but is relatively rare on Earth. It’s non-reactive, totally inert—yet the most valuable helium isotope is sourced from thermonuclear warheads. And even though we treat it as a disposable gas, ...  Show more

Melvyn Bragg and guests discuss the decisive role of one of the great 20th Century physicists in solving the question of nuclear fission. It is said that Meitner (1878-1968) made this breakthrough over Christmas 1938 while she was sitting on a log in Sweden during a snowy walk wi ...  Show more

Le californium est un élément chimique très rare et radioactif, portant le symbole Cf et le numéro atomique 98 dans le tableau périodique. Il a été découvert en 1950 par une équipe de chercheurs à l'Université de Californie, Berkeley, d'où il tire son nom. Le californium appar ...

In this week’s episode we pay tribute to the periodic table. We talk to Sam Kean, author of the best-selling book The Disappearing Spoon and hear an excerpt from Primo Levi’s book The Periodic Table.

SHOW CLOCK

00:00 Opening Credits