Antimatter
In Our Time4 Loka 2007

Antimatter

Melvyn Bragg and guests discuss Antimatter, a type of particle predicted by the British physicist, Paul Dirac. Dirac once declared that “The laws of nature should be expressed in beautiful equations”. True to his word, he is responsible for one of the most beautiful. Formulated in 1928, it describes the behaviour of electrons and is called the Dirac equation. But the Dirac equation is strange. For every question it gives two answers – one positive and one negative. From this its author concluded that for every electron there is an equal and opposite twin. He called this twin the anti-electron and so the concept of antimatter was born.Despite its popularity with Science Fiction writers, antimatter is relatively mundane in physics – we have created antimatter in the laboratory and we even use it in our hospitals. But one fundamental question remains – why isn’t there more antimatter in the universe. Answering that question will involve developing new physics and may take us closer to understanding events at the origin of the universe. With Val Gibson, Reader in High Energy Physics at the University of Cambridge; Frank Close, Professor of Physics at Exeter College, University of Oxford; Ruth Gregory, Professor of Mathematics and Physics at the University of Durham

Jaksot(1080)

The Korean Empire

The Korean Empire

Melvyn Bragg and guests discuss Korea's brief but significant period as an empire as it moved from the 500-year-old dynastic Joseon monarchy towards modernity. It was in October 1897 that King Gojong ...

29 Touko 202547min

Molière

Molière

Melvyn Bragg and guests discuss one of the great figures in world literature. The French playwright Molière (1622-1673) began as an actor, aiming to be a tragedian, but he was stronger in comedy, tour...

22 Touko 202551min

Typology

Typology

Melvyn Bragg and guests explore typology, a method of biblical interpretation that aims to meaningfully link people, places, and events in the Hebrew Bible, what Christians call the Old Testament, wit...

15 Touko 202550min

The Battle of Clontarf

The Battle of Clontarf

Melvyn Bragg and guests discuss one of the best known events and figures in Irish history. In 1014 Brian Boru, High King of Ireland, defeated the Hiberno-Norse forces of Sigtrygg Silkbeard and allies...

8 Touko 202551min

The Gracchi

The Gracchi

Melvyn Bragg and guests discuss the brothers Tiberius and Gaius Gracchus whose names are entwined with the end of Rome's Republic and the rise of the Roman Emperors. As tribunes, they brought popular ...

1 Touko 202549min

Maurice Merleau-Ponty

Maurice Merleau-Ponty

Melvyn Bragg and guests discuss the French philosopher Maurice Merleau-Ponty (1908-1961), who was part of the movement known as phenomenology. While less well-known than his contemporaries Jean-Paul S...

24 Huhti 202559min

Thomas Middleton

Thomas Middleton

Melvyn Bragg and guests discuss one of the most energetic, varied and innovative playwrights of his time. Thomas Middleton (1580-1627) worked across the London stages both alone and with others from D...

17 Huhti 202556min

Cyrus the Great

Cyrus the Great

Melvyn Bragg and guests explore the history and reputation of the Persian ruler Cyrus the Great. Cyrus the Second of Persia as he was known then was born in the sixth century BCE in Persis which is no...

10 Huhti 202550min

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