In Our Time: Science-Logo

Wissenschaft & Technik

In Our Time: Science

Scientific principles, theory, and the role of key figures in the advancement of science.

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Folgen von In Our Time: Science

284 Folgen
  • Folge vom 29.04.1999
    Artificial Intelligence
    Melvyn Bragg and guests discuss artificial intelligence. Can we create a machine that creates? Some argue so. And is consciousness, as we are, with headaches and tiffs and moods and small pleasures and sore feet - often all at the same time - capable of taking place in a machine? Artificial intelligence machines have been growing much more intelligent since Alan Turing’s pioneering days at Bletchley in World War Two. Its claims are now very grand indeed. It is 31 years since Stanley Kubrick and Arthur C Clarke gave us HAL - the archetypal thinking computer of the film 2001: A Space Odyssey. But are we any nearer to achieving the thinking, feeling computer? Or is it just a dream - and should it remain as one?With Igor Aleksander, Professor, Imperial College London and inventor of Magnus - a neural computer which he says is an artificially conscious machine; John Searle, Professor of Philosophy, University of California and one of only two people in the world to invent an argument, the Chinese Room Argument, which destroys the plausibility of the idea of conscious machines.
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  • Folge vom 15.04.1999
    Evolution
    Melvyn Bragg examines the future of gene therapy and advances in evolutionary biology. Are we continuing to evolve? If so, what are the signs and if not, why not? And those apes, so very very near us in genetic kinship, why are they so far away in so much else, and will they ever evolve? And is evolution necessarily progression? If so, does our apparent lack of evolution mean lack of progress? Also on the evolutionary front, could electronic devices discover the means of self-replication, and what will that mean for us? The march of the life sciences after the discovery of DNA accelerates by the year but what are the implications?With Professor John Maynard Smith evolutionary biological theorist and Emeritus Professor of Biology at the University of Sussex; Colin Tudge, writer, journalist and Research Fellow at the Centre for Philosophy.
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  • Folge vom 18.03.1999
    Animal Experiments and Rights
    Melvyn Bragg and guests discuss the role of animals in humankind's search for knowledge. Since the Greek physician Galen used pigs for anatomical studies in the 2nd century, animals have been used by scientists to further human knowledge. Yet few, if any subjects in this country, raise such violent feelings and passions as animals and their place in our society. With the growing politicisation of animal rights, it is a subject which is increasing in intensity. Do animals have rights and do our needs permit us to use them still to enhance our own lives in the twentieth century? Is it still necessary to experiment on animals for the good of humankind? Or is that morally unacceptable and barbaric - particularly in the light of new research into animal consciousness?With Colin Blakemore, Professor of Physiology, Oxford University, President of the British Association for the Advancement of Science, Fellow of the Royal Society and targeted in the 1980s by animal welfare activists protesting at his research methods; Dr Lynda Birke, biologist, teacher at Lancaster and Warwick Universities, and previously worked for 7 years in animal behaviour at the Open University.
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  • Folge vom 18.02.1999
    Space in Religion and Science
    Melvyn Bragg and guests discuss the history of thought about space, and examines whether cyberspace has introduced a new concept of space in our world or if its roots are in Einsteinian physics. It would have seemed extraordinary to Dante or Newton, from their different perspectives, that at the end of the 20th century there would be learned scholars who would find no place for religion in the great schemes of thought and belief. In the 20th century our notions of physical space have been revolutionised. Einstein said that space was not a separate entity; we’ve probed and explored the outer reaches of our physical space with space flight, powerful telescopes and theoretical physics. But in the last 20 years, with the birth of the Internet, a virtual form of space has been introduced to us - cyberspace - where people can meet and communicate ideas; you sit at home, punch the keys and you can rove all over the world - the keyboard becomes a magic carpet. But does cyberspace introduce a new concept of space in our world? Or does it really have its roots in Einsteinian physics and even in Medieval theologyAccording to the science writer Margaret Wertheim, cyberspace - life on the surfing internet - gives us not only virtual reality, but a soul. Dr John Polkinghorne, the distinguished physicist and ordained priest in the C of E, is not happy with this news, but he does believe that religion is not destroyed by the new technology, and that latest theories in physics reinforce it. With The Reverend Dr John Polkinghorne, Fellow of Queen’s College, Cambridge and Canon Theologian of Liverpool; Margaret Wertheim, science writer and author of The Pearly Gates of Cyberspace: A History of Space from Dante to the Internet.
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