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(1077)

Jupiter

Jupiter

Jupiter is the largest planet in our solar system, and it’s hard to imagine a world more alien and different from Earth. It’s known as a Gas Giant, and its diameter is eleven times the size of Earth’s...

27 Juli 202353min

Elizabeth Anscombe

Elizabeth Anscombe

In 1956 Oxford University awarded an honorary degree to the former US president Harry S. Truman for his role in ending the Second World War. One philosopher, Elizabeth Anscombe (1919 – 2001), objected...

20 Juli 202354min

Death in Venice

Death in Venice

Death in Venice is Thomas Mann’s most famous – and infamous - novella. Published in 1912, it’s about the fall of the repressed writer Gustav von Aschenbach, when his supposedly objective appreciation ...

13 Juli 202348min

Oedipus Rex

Oedipus Rex

Sophocles’ play Oedipus Rex begins with a warning: the murderer of the old king of Thebes, Laius, has never been identified or caught, and he’s still at large in the city. Oedipus is the current king ...

6 Juli 202354min

Mitochondria

Mitochondria

Melvyn Bragg and guests discuss the power-packs within cells in all complex life on Earth. Inside each cell of every complex organism there are structures known as mitochondria. The 19th century scien...

29 Juni 202352min

Louis XIV: The Sun King

Louis XIV: The Sun King

In 1661 the 23 year-old French king Louis the XIV had been on the throne for 18 years when his chief minister, Cardinal Mazarin, died. Louis is reported to have said to his ministers, “It is now time ...

22 Juni 202347min

Virgil's Georgics

Virgil's Georgics

In the year 29 BC the great Roman poet Virgil published these lines: Blessed is he who has succeeded in learning the laws of nature’s working, has cast beneath his feet all fear and fate’s implacabl...

15 Juni 202349min

The Shimabara Rebellion

The Shimabara Rebellion

Melvyn Bragg and guests discuss the Christian uprising in Japan and its profound and long-term consequences. In the 1630s, Japan was ruled by the Tokagawa Shoguns, a military dynasty who, 30 years ear...

8 Juni 202348min

Populärt inom Historia

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