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(1077)

The Riddle of the Sands

The Riddle of the Sands

Melvyn Bragg and guests discusses the prescient thriller ‘The Riddle of the Sands’ about the decline Anglo-German relations before the First World War. In 1903 an Englishman called Charles Caruthers went sailing in the North Sea and stumbled upon a German military plot. The cunning plan was to invade the British Isles from the Frisian Islands using special barges. The plucky Caruthers foiled the plot and returned to his sailing holiday.This is not history but fiction, an immensely popular book called ‘The Riddle of the Sands’ by Erskine Childers. It was a prescient vision of two nations soon to fight the First World War but it went against the spirit of the previous century. Brits and Germans had fought together at Waterloo and had influenced profoundly each other’s thought and art. They even shared a royal family. Yet somehow victory at Waterloo and the shared glories of Romanticism became the mutual tragedy of the Somme.With Richard Evans, Professor of Modern History at the University of Cambridge; Rosemary Ashton, Quain Professor of English Language and Literature at University College London and Tim Blanning, Professor of Modern European history at The University of Cambridge.

12 Jun 200842min

Lysenkoism

Lysenkoism

Melvyn Bragg and guests delve into the dark world of genetics under Joseph Stalin in discussing the career of Trofim Lysenko. In 1928, as America lurched towards the Wall Street Crash, Joseph Stalin revealed his master plan - nature was to be conquered by science, Russia to be made brutally, glitteringly modern and the world transformed by communist endeavour.Into the heart of this vision stepped Trofim Lysenko, a self-taught geneticist who promised to turn Russian wasteland into a grain-laden Garden of Eden. Today, Lysenko is a byword for fraud but in Stalin’s Russia his outlandish ideas about genetic inheritance and evolution became law. They reveal a world of science distorted by ideology, where ideas were literally a matter of life and death. To disagree with Lysenko risked the gulag and yet he destroyed Soviet Agriculture and damaged, perhaps irreparably, the Soviet Union’s capacity to fight and win the Cold War. With Robert Service, Professor of Russian History at the University of Oxford; Steve Jones, Professor of Genetics at University College London; Catherine Merridale, Professor of Contemporary History at Queen Mary, University of London.

5 Jun 200842min

Probability

Probability

Melvyn Bragg and guests discuss the strange mathematics of probability where heads or tails is a simple question with a far from simple answer. Gambling may be as old as the hills but probability as a mathematical discipline is a relative youngster. Probability is the field of maths relating to random events and, although commonplace now, the idea that you can pluck a piece of maths from the tumbling of dice, the shuffling of cards or the odds in the local lottery is a relatively recent and powerful one. It may start with the toss of a coin but probability reaches into every area of the modern world, from the analysis of society to the decay of an atom. With Marcus du Sautoy, Professor of Mathematics at the University of Oxford; Colva Roney-Dougal, Lecturer in Pure Mathematics at the University of St Andrews; Ian Stewart, Professor of Mathematics at the University of Warwick

29 Mai 200842min

The Black Death

The Black Death

Melvyn Bragg and guests discuss how the Black Death influenced the structure and ideas of Medieval Europe. In October 1347, a Genoese trading ship arrived at the busy port of Messina in Sicily and docked among many similar ships doing similar things. But this ship was special because this ship had rats and the rats had fleas and the fleas had plague. This was the Black Death and its terrible progress was captured by the Florentine writer Giovanni Boccaccio who declared “in those years a dead man was then of no more account than a dead goat”. In the long and unsanitary history of Europe there have been many plagues but only one Black Death. It killed over a third of Europe’s population in 4 years – young and old, rich and poor, in the town and in the country. When it stopped in 1351 it left a continent ravaged but transformed – the poor found their labour to be valuable, religion was both reinforced and undercut, medicine progressed, art changed and the continent awash with guilt and memorialisation. With Miri Rubin, Professor of Medieval and Early Modern History at Queen Mary, University of London; Samuel Cohn, Professor of Medieval History at the University of Glasgow; Paul Binski, Professor of the History of Medieval Art at Gonville and Caius College, University of Cambridge

22 Mai 200842min

The Library at Nineveh

The Library at Nineveh

Melvyn Bragg and guests discuss the Library at Nineveh, a treasure house of Assyrian ideas from the 7th Century BC. In 1849 a young English adventurer called Henry Layard started digging into a small hill on the banks of the River Tigris in Northern Iraq. Underneath it he found the ancient city of Nineveh. Layard unearthed extraordinary things - wonderful carved reliefs, ancient palace rooms and great statues of winged bulls. He also found a collection of clay tablets, broken up, jumbled around and sitting on the floor of a toilet. It was the remnants of a library and although Layard didn’t know it at the time, it was one of the greatest archaeological finds ever made.Conceived to house the sum of all human knowledge the library was built in the 7th century BC as the grand Assyrian Empire entered its last years. The clay tablets have proved to be a window into all aspects of Assyrian life, its literature, politics, religion and medicine – practises that are both deeply alien to us and alluringly familiar. With Eleanor Robson, Senior Lecturer at Cambridge University and Vice-Chair of the British Institute for the Study of Iraq; Karen Radner, Lecturer in the Ancient Near Eastern History at University College London; Andrew George, Professor of Babylonian at the School of Oriental and African Studies at the University of London

15 Mai 200842min

The Brain

The Brain

Melvyn Bragg and guests discuss the history of ideas about the human brain. Since time immemorial people have puzzled over the brain and its functions. In the 5th century BC the Greek physician Hippocrates confidently asserted:“Men ought to know that from the brain and from the brain only arise our pleasures, joys, laughter and jests, as well as our sorrows, pains, grieves and tears.” This might suggest that people have never doubted the importance of the brain, but for Aristotle the heart was the ruler of the body and the seat of the soul. Only in the 17th century, with new scientific advances, did the true importance of the brain begin to be appreciated. In 1669 the Danish anatomist, Nicolaus Steno, still lamented that, “the brain, the masterpiece of creation, is almost unknown to us.”How far have our perceptions of how the brain works and what it symbolises changed over the centuries? And, in amongst the matter or our little grey cells, are we still searching for our souls? With Vivian Nutton, Professor of the History of Medicine at University College London; Jonathan Sawday, Professor of English Studies at the University of Strathclyde; Marina Wallace, Professor at the University of the Arts, London, Central St Martin’s College of Art and Design

8 Mai 200842min

The Enclosures of the 18th Century

The Enclosures of the 18th Century

Melvyn Bragg and guests discuss the enclosure movement of the 18th and 19th centuries. In the early 19th century, the Northamptonshire poet John Clare took a good look at the countryside and didn’t like what he saw. He wrote: "Fence meeting fence in owners little boundsOf field and meadow, large as garden-grounds,In little parcels little minds to please,With men and flocks imprisoned, ill at ease."Enclosure means literally enclosing a field with a fence or a hedge to prevent others using it. This seemingly innocuous act triggered a revolution in land holding that dispossessed many, enriched a few but helped make the agricultural and industrial revolutions possible. It saw the dominance of private property as the model of ownership, as against the collective rights of previous generations. For some Enclosure underpinned the economic and agricultural development of Modern Britain. But it has also been a cause celebre for the political left ever since Karl Marx argued that enclosures created the industrialised working class and ushered in the capitalist society. What really happened during the era of 18th and 19th century enclosures? Who gained, who lost and what role did Enclosures play in the agricultural and industrial transformation of this country? With Rosemary Sweet, Director of the Centre for Urban History at the University of Leicester; Murray Pittock, Bradley Professor of English Literature at the University of Glasgow; Mark Overton, Professor of Economic and Social History at the University of Exeter.

1 Mai 200842min

Materialism

Materialism

Melvyn Bragg and guests discuss Materialism in Philosophy – the idea that matter and the interactions between matter account for all that exists and all that happens. We trace the descent of materialism from the ancient Greek philosophers Democritus and Epicurus, to its powerful and controversial flowering in the 17th, 18th and 19th centuries as an attack on religion. It’s provocative stuff even today and certainly was in 1770 when Baron D’Holbach published his book The System of Nature. He wrote: "If we go back to the beginning we shall find that ignorance and fear created the gods; that fancy, enthusiasm, or deceit adorned or disfigured them; that weakness worships them; that credulity preserves them, and that custom, respect and tyranny support them."Materialism was considered so dangerous that every copy of the Baron’s book was condemned to be burnt. Despite this, or perhaps because of it, materialism dominates much of our understanding of the world today. Associated with science and atheism, Materialism has influenced many forms of contemporary human thought from the process of history to the diagnosis of disease and boasts a cast list of devotees including Pierre Gassandi, Thomas Hobbes, the Marquis de Sade and Karl Marx. But what does materialism really mean, how has it developed over time and can we still have free will if we are living in a materialist world? With Anthony Grayling, Professor of Philosophy at Birkbeck College, University of London; Caroline Warman, Fellow of Jesus College, Oxford; Anthony O’Hear, Professor of Philosophy at the University of Buckingham

24 Apr 200842min

Populært innen Historie

rss-dette-ma-aldri-skje-igjen
aftenposten-historie
historier-som-endret-norge
rss-benadet
med-egne-oyne
historier-som-endret-verden
henrettelsespodden
sektledere
rss-nadelose-nordmenn-gestapo
rss-frontkjemperne
rss-katastrofe
historiepodden
historiepodden-ww2
rss-strid-de-norske-borgerkrigene
vare-historier
taakeprat
rss-historiepodden-ww2
gangsterpodden-2
rss-gamle-greier
diktatorpodden