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(1084)

The Gordon Riots

The Gordon Riots

Melvyn Bragg and guests discuss the most destructive riots in London's history, which reached their peak on 7th June 1780 as troops fired on the crowd outside the Bank of England. The leader was Lord ...

2 Mai 201950min

Nero

Nero

Melvyn Bragg and guests discuss the life of Nero (37-68 AD) who became Emperor at the age of 16. At first he was largely praised for his generosity yet became known for his debauched lifestyle, with a...

25 Apr 201951min

A Midsummer Night's Dream

A Midsummer Night's Dream

Melvyn Bragg and guests discuss one of Shakespeare's most popular works, written c1595 in the last years of Elizabeth I. It is a comedy of love and desire and their many complications as well as their...

18 Apr 201954min

The Evolution of Teeth

The Evolution of Teeth

Melvyn Bragg and guests discuss theories about the origins of teeth in vertebrates, and what we can learn from sharks in particular and their ancestors. Great white sharks can produce up to 100,000 te...

11 Apr 201949min

The Great Irish Famine

The Great Irish Famine

Melvyn Bragg and guests discuss why the potato crop failures in the 1840s had such a catastrophic impact in Ireland. It is estimated that one million people died from disease or starvation after the ...

4 Apr 201957min

The Danelaw

The Danelaw

Melvyn Bragg and guests discuss the effective partition of England in the 880s after a century of Viking raids, invasions and settlements. Alfred of Wessex, the surviving Anglo-Saxon king and Guthrum...

28 Mar 201950min

Gerard Manley Hopkins

Gerard Manley Hopkins

Melvyn Bragg and guests discuss the life and works of Hopkins (1844-89), a Jesuit priest who at times burned his poems and at others insisted they should not be published. His main themes are how he,...

21 Mar 201947min

Authenticity

Authenticity

Melvyn Bragg and guests discuss what it means to be oneself, a question explored by philosophers from Aristotle to the present day, including St Augustine, Kierkegaard, Heidegger and Sartre. In Hamle...

14 Mar 201950min

Populært innen Historie

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