The KT Boundary
In Our Time23 Kesä 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.

Jaksot(1084)

The Photon

The Photon

Melvyn Bragg and his guests discuss the photon, one of the most enigmatic objects in the Universe. Generations of scientists have struggled to understand the nature of light. In the late nineteenth ce...

12 Helmi 201545min

Ashoka the Great

Ashoka the Great

Melvyn Bragg and his guests discuss the Indian Emperor Ashoka. Active in the 3rd century BC, Ashoka conquered almost all of the landmass covered by modern-day India, creating the largest empire South ...

5 Helmi 201546min

Thucydides

Thucydides

Melvyn Bragg and his guests discuss the ancient Greek historian Thucydides. In the fifth century BC Thucydides wrote The History of the Peloponnesian War, an account of a conflict in which he had hims...

29 Tammi 201545min

Phenomenology

Phenomenology

Melvyn Bragg and guests discuss phenomenology, a style of philosophy developed by the German thinker Edmund Husserl in the first decades of the 20th century. Husserl's initial insights underwent a rad...

22 Tammi 201546min

Bruegel's The Fight Between Carnival and Lent

Bruegel's The Fight Between Carnival and Lent

Melvyn Bragg and guests discuss Pieter Bruegel the Elder's painting of 1559, 'The Fight Between Carnival And Lent'. Created in Antwerp at a time of religious tension between Catholics and Protestants,...

15 Tammi 201545min

Truth

Truth

Melvyn Bragg and his guests discuss the philosophy of truth. Pontius Pilate famously asked: what is truth? In the twentieth century, the nature of truth became a subject of particular interest to phil...

18 Joulu 201442min

Behavioural Ecology

Behavioural Ecology

Melvyn Bragg and guests discuss Behavioural Ecology, the scientific study of animal behaviour.What factors influence where and what an animal chooses to eat? Why do some animals mate for life whilst o...

11 Joulu 201445min

Zen

Zen

Melvyn Bragg and guests discuss Zen. It's often thought of as a form of Buddhism that emphasises the practice of meditation over any particular set of beliefs. In fact Zen belongs to a particular inte...

4 Joulu 201445min

Suosittua kategoriassa Historia

olipa-kerran-otsikko
gogin-ja-janin-maailmanhistoria
mayday-fi
huijarit
mystista
rss-ikiuni
totuus-vai-salaliitto
tsunami
konginkangas
rouva-diktaattori
rss-subjektiivinen-todistaja
rss-peter-peter
rss-i-dont-like-mondays-2
rss-sattuu-sita-suomessakin
sotaa-ja-historiaa-podi
rss-kirkon-ihmeellisimmat-tarinat
historiaa-suomeksi
apinan-vuosi
maailmanpuu
tiedetta-ja-sirkushuveja-vanhojen-aikojen-podcast