The periodic table turns 150

From humble beginnings in England in the 12th century, to landmark civil rights court cases in the US in the 1960s, class actions are now rarely out of the headlines.They’re a means of bringing together large groups of people – sometimes millions – under the umbrella of a collect ...  Show more

250 years ago, on the 9th of March 1776, a book was published that didn’t just explain the economy, it changed it. The Wealth of Nations, written by "the father of economics" Adam Smith, sparked debates that still rage today, shaping everything from global trade to how much you e ...  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