The KT Boundary
In Our Time23 Jun 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.

Episoder(1085)

Strabo's Geographica

Strabo's Geographica

Melvyn Bragg and his guests discuss Strabo's Geographica. Written almost exactly two thousand years ago by a Greek scholar living in Rome, the Geographica is an ambitious attempt to describe the entir...

10 Apr 201447min

States of Matter

States of Matter

Melvyn Bragg and his guests discuss the science of matter and the states in which it can exist. Most people are familiar with the idea that a substance like water can exist in solid, liquid and gaseou...

3 Apr 201447min

Weber's The Protestant Ethic

Weber's The Protestant Ethic

Melvyn Bragg and his guests discuss Max Weber's book the Protestant Ethic and the Spirit of Capitalism. Published in 1905, Weber's essay proposed that Protestantism had been a significant factor in th...

27 Mar 201450min

Bishop Berkeley

Bishop Berkeley

Melvyn Bragg and his guests discuss the work of George Berkeley, an Anglican bishop who was one of the most important philosophers of the eighteenth century. Bishop Berkeley believed that objects only...

20 Mar 201447min

The Trinity

The Trinity

Melvyn Bragg and his guests discuss the Trinity. The idea that God is a single entity, but one known in three distinct forms - Father, Son and Holy Spirit - has been a central belief for most Christia...

13 Mar 201442min

Spartacus

Spartacus

Melvyn Bragg and his guests discuss the life of Spartacus, the gladiator who led a major slave rebellion against the Roman Republic in the 1st century BC. He was an accomplished military leader, and t...

6 Mar 201441min

The Eye

The Eye

Melvyn Bragg and his guests discuss the eye. Humans have been attempting to understand the workings and significance of the organ for at least 2500 years. Some ancient philosophers believed that the e...

27 Feb 201442min

Social Darwinism

Social Darwinism

Melvyn Bragg and his guests discuss Social Darwinism. After the publication of Charles Darwin's masterpiece On the Origin of Species in 1859, some thinkers argued that Darwin's ideas about evolution c...

20 Feb 201441min

Populært innen Historie

rss-dette-ma-aldri-skje-igjen
henrettelsespodden
rss-katastrofe
med-egne-oyne
historier-som-endret-norge
rss-benadet
sektledere
rss-nadelose-nordmenn-gestapo
aftenposten-historie
rss-frontkjemperne
historier-som-endret-verden
rss-strid-de-norske-borgerkrigene
rss-gamle-greier
historiepodden
rss-historiske-romanser-svik-drap-og-kjarlighet
rss-bisarr-historie
taakeprat
rss-historier-fra-gudbrandsdalen
historiepodden-ww2
vare-historier