The KT Boundary
In Our Time23 Juni 2005

The KT Boundary

Melvyn Bragg and guests discuss the KT Boundary. Across the entire planet, where it hasn't been eroded or destroyed in land movements, there is a thin grey line. In Italy it is 1 cm thick, in America it stretches to three centimetres, but it is all the same thin grey line laid into the rock some 65 million years ago and it bears witness to a cataclysmic event experienced only once in Earth's history. It is called the KT Boundary and geologists believe it is the clue to the death of the dinosaurs and the ultimate reason why mammals and humans inherited the Earth.But exactly what did happen 65 million years ago? How was this extraordinary line created across the Earth and does it really hold the key to the death of the dinosaurs?With Simon Kelley, Head of Department in the Department of Earth Sciences, Open University, Jane Francis, Professor of Palaeoclimatology, University of Leeds; Mike Benton, Professor of Vertebrate Palaeontology in the Department of Earth Sciences, University of Bristol.

Avsnitt(1078)

Comedy in Ancient Greek Theatre

Comedy in Ancient Greek Theatre

Melvyn Bragg and guests discuss comedy in Ancient Greek theatre including Aristophanes and Menander. In The Birds, written by Aristophanes, two Athenians seek a Utopian refuge from the madness of city...

13 Juli 200641min

Pastoral Literature

Pastoral Literature

Melvyn Bragg and guests discuss pastoral literature.Come live with me and be my love, And we will all the pleasures prove That valleys, groves, hills, and fields, Woods or steepy mountain yields.And w...

6 Juli 200642min

Galaxies

Galaxies

Melvyn Bragg and guests discuss the galaxies. Spread out across the voids of space like spun sugar, but harbouring in their centres super-massive black holes. Our galaxy is about 100,000 light years a...

29 Juni 200642min

The Spanish Inquisition

The Spanish Inquisition

Melvyn Bragg and guests discuss the Spanish Inquisition, the defenders of medieval orthodoxy. The word ‘Inquisition’ has its roots in the Latin word 'inquisito' which means inquiry. The Romans used th...

22 Juni 200642min

Carbon

Carbon

Melvyn Bragg and guests discuss Carbon. It forms the basis of all organic life and has the amazing ability to bond with itself and a wide range of other elements, forming nearly 10 million known compo...

15 Juni 200642min

Uncle Tom's Cabin

Uncle Tom's Cabin

Melvyn Bragg and guests discuss the anti slavery novel, 'Uncle Tom's Cabin'. When Abraham Lincoln met the writer Harriet Beecher Stowe after the start of the American Civil War, he reportedly said to ...

8 Juni 200642min

The Heart

The Heart

Melvyn Bragg and guests discuss the heart. Aristotle considered the heart to be the seat of thought, reason and emotion. The Roman physician Galen located the seat of the passions in the liver, the s...

1 Juni 200642min

Mathematics and Music

Mathematics and Music

Melvyn Bragg and guests discuss the mathematical structures that lie within the heart of music. The seventeenth century philosopher Gottfried Leibniz wrote: 'Music is the pleasure the human mind exper...

25 Maj 200642min

Populärt inom Historia

motiv
massmordarpodden
historiska-brott
p3-historia
historiepodden-se
olosta-mord
historianu-med-urban-lindstedt
rss-brottsligt
rss-massmordarpodden
rss-seriemordarpodden
konspirationsteorier
krigshistoriepodden
podme-bio-4
nu-blir-det-historia
rss-historien-om
vetenskapsradion-historia
militarhistoriepodden
harrisons-dramatiska-historia
rss-borgvattnets-hemligheter
rss-arkiv-stieg