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)

Rumi's Poetry

Rumi's Poetry

Melvyn Bragg and guests discuss the poetry of Rumi, the Persian scholar and Sufi mystic of the 13th Century. His great poetic works are the Masnavi or "spiritual couplets" and the Divan, a collection ...

11 Helmi 201646min

Chromatography

Chromatography

Melvyn Bragg and guests discuss the origins, development and uses of chromatography. In its basic form, it is familiar to generations of schoolchildren who put a spot of ink at the bottom of a strip o...

4 Helmi 201647min

Eleanor of Aquitaine

Eleanor of Aquitaine

Melvyn Bragg and guests discuss the life, times and influence of Eleanor of Aquitaine (c1122-1204) who was one of the most powerful women in Twelfth Century Europe, possibly in the entire Middle Ages....

28 Tammi 201644min

Thomas Paine's Common Sense

Thomas Paine's Common Sense

Melvyn Bragg and guests discuss Thomas Paine and his pamphlet "Common Sense" which was published in Philadelphia in January 1776 and promoted the argument for American independence from Britain. Addre...

21 Tammi 201645min

Saturn

Saturn

Melvyn Bragg and guests discuss the planet Saturn with its rings of ice and rock and over 60 moons. In 1610, Galileo used an early telescope to observe Saturn, one of the brightest points in the night...

14 Tammi 201646min

Tristan and Iseult

Tristan and Iseult

Melvyn Bragg and guests discuss Tristan and Iseult, one of the most popular stories of the Middle Ages. From roots in Celtic myth, it passed into written form in Britain a century after the Norman Con...

31 Joulu 201545min

Michael Faraday

Michael Faraday

Melvyn Bragg and guests discuss the eminent 19th-century scientist Michael Faraday. Born into a poor working-class family, he received little formal schooling but became interested in science while wo...

24 Joulu 201545min

Circadian Rhythms

Circadian Rhythms

Melvyn Bragg and his guests discuss the evolution and role of Circadian Rhythms, the so-called body clock that influences an organism's daily cycle of physical, behavioural and mental changes. The rhy...

17 Joulu 201548min

Suosittua kategoriassa Historia

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