Melvyn Bragg and guests discuss the flow of particles from the outer region of the Sun which we observe in the Northern and Southern Lights, interacting with Earth's magnetosphere, and in comet tails that stream away from the Sun regardless of their own direction.  One way of defining the boundary of the solar system is where the pressure from the solar wind is balanced by that from the region between the stars, the interstellar medium.  Its existence was suggested from the C19th and Eugene Parker developed the theory of it in the 1950s and it has been examined and tested by a series of probes in C20th up to today, with more planned. With  Andrew Coates
Professor of Physics and Deputy Director in charge of the Solar System at the Mullard Space Science Laboratory, University College London Helen Mason OBE
Reader in Solar Physics at the Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Fellow at St Edmund's College And Tim Horbury
Professor of Physics at Imperial College London Producer: Simon Tillotson

Solar Wind

Melvyn Bragg and guests discuss the ideas, people and events that have shaped our world.

History

Society & Culture

Melvyn Bragg and guests discuss the last pagan ruler of the Roman Empire.  Fifty years after Constantine the Great converted to Christianity and introduced a policy of tolerating the faith across the empire, Julian (c.331 - 363 AD) aimed to promote paganism instead, branding Constantine the worst of all his predecessors.  Julian was a philosopher-emperor in the mould of Marcus Aurelius and was noted in his lifetime for his letters and his satires, and it was his surprising success as a general in his youth in Gaul that had propelled him to power barely twenty years after a rival had slaughtered his family.  Julian's pagan mission  and his life were brought to a sudden end while on campaign against the Sasanian Empire in the east, but he left so much written evidence of his ideas that he remains one of the most intriguing of all the Roman emperors and a hero to the humanists of the Enlightenment.  With  James Corke-Webster 
Reader in Classics, History and Liberal Arts at King’s College, London Lea Niccolai 
Assistant Professor in Classics at the University of Cambridge and Fellow and Director of Studies in Classics, Trinity College  And  Shaun Tougher
Professor of Late Roman and Byzantine History at Cardiff University Producer: Simon Tillotson Reading list: Polymnia Athanassiadi, Julian: An Intellectual Biography (first published 1981; Routledge, 2014) Nicholas Baker-Brian and Shaun Tougher (eds.), Emperor and Author: The Writings of Julian the Apostate (Classical Press of Wales, 2012) Nicholas Baker-Brian and Shaun Tougher (eds.), The Sons of Constantine, AD 337-361: In the Shadows of Constantine and Julian, (Palgrave Macmillan, 2020) G.W. Bowersock, Julian the Apostate (first published 1978; Harvard University Press, 1997) Susanna Elm, Sons of Hellenism, Fathers of the Church: Emperor Julian, Gregory of Nazianzus, and the Vision of Rome (University of California Press, 2012) Ari Finkelstein, The Specter of the Jews: Emperor Julian and the Rhetoric of Ethnicity in Syrian Antioch (University of California Press, 2018) David Neal Greenwood, Julian and Christianity: Revisiting the Constantinian Revolution (Cornell University Press, 2021) Lea Niccolai, Christianity, Philosophy, and Roman Power: Constantine, Julian, and the Bishops on Exegesis and Empire (Cambridge University Press, 2023) Stefan Rebenich and Hans-Ulrich Wiemer (eds), A Companion to Julian the Apostate (Brill, 2020) Rowland Smith, Julian’s Gods: Religion and Philosophy in the Thought and Action of Julian the Apostate (Routledge, 1995) H.C. Teitler, The Last Pagan Emperor: Julian the Apostate and the War against Christianity (Oxford University Press, 2017) Shaun Tougher, Julian the Apostate (Edinburgh University Press, 2007) W. C. Wright, The Works of Emperor Julian of Rome (Loeb, 1913-23)

Julian the Apostate

Melvyn Bragg and guests discuss the dance which, from when it reached Britain in the early nineteenth century, revolutionised the relationship between music, literature and people here for the next hundred years.  While it may seem formal now, it was the informality and daring that drove its popularity, with couples holding each other as they spun round a room to new lighter music popularised by Johann Strauss, father and son, such as The Blue Danube.  Soon the Waltz expanded the creative world in poetry, ballet, novellas and music, from the Ballets Russes of Diaghilev to Moon River and Are You Lonesome Tonight. With Susan Jones
Emeritus Professor of English Literature at the University of Oxford Derek B. Scott
Professor Emeritus of Music at the University of Leeds And Theresa Buckland
Emeritus Professor of Dance History and Ethnography at the University of Roehampton Producer: Simon Tillotson Reading list:  Egil Bakka, Theresa Jill Buckland, Helena Saarikoski, and Anne von Bibra Wharton (eds.), Waltzing Through Europe: Attitudes towards Couple Dances in the Long Nineteenth Century, (Open Book Publishers, 2020) Theresa Jill Buckland, ‘How the Waltz was Won: Transmutations and the Acquisition of Style in Early English Modern Ballroom Dancing. Part One: Waltzing Under Attack’ (Dance Research, 36/1, 2018); ‘Part Two: The Waltz Regained’ (Dance Research, 36/2, 2018) Theresa Jill Buckland, Society Dancing: Fashionable Bodies in England, 1870-1920 (Palgrave Macmillan, 2011) Erica Buurman, The Viennese Ballroom in the Age of Beethoven (Cambridge University Press, 2022)  Paul Cooper, ‘The Waltz in England, c. 1790-1820’ (Paper presented at Early Dance Circle conference, 2018) Sherril Dodds and Susan Cook (eds.), Bodies of Sound: Studies Across Popular Dance and Music (Ashgate, 2013), especially ‘Dancing Out of Time: The Forgotten Boston of Edwardian England’ by Theresa Jill Buckland Zelda Fitzgerald, Save Me the Waltz (first published 1932; Vintage Classics, 2001) Hilary French, Ballroom: A People's History of Dancing (Reaktion Books, 2022) Susan Jones, Literature, Modernism, and Dance (Oxford University Press, 2013) Mark Knowles, The Wicked Waltz and Other Scandalous Dances: Outrage at Couple Dancing in the 19th and Early 20th Centuries (McFarland, 2009) Rosamond Lehmann, Invitation to the Waltz (first published 1932; Virago, 2006) Eric McKee, Decorum of the Minuet, Delirium of the Waltz: A Study of Dance-Music Relations in 3/4 Time (Indiana University Press, 2012) Eduard Reeser, The History of the Walz (Continental Book Co., 1949) Stanley Sadie (ed.), The New Grove Dictionary of Music and Musicians, Vol. 27 (Macmillan, 2nd ed., 2000), especially ‘Waltz’ by Andrew Lamb Derek B. Scott, Sounds of the Metropolis: The 19th-Century Popular Music Revolution in London, New York, Paris and Vienna (Oxford University Press, 2008), especially the chapter ‘A Revolution on the Dance Floor, a Revolution in Musical Style: The Viennese Waltz’ Joseph Wechsberg, The Waltz Emperors: The Life and Times and Music of the Strauss Family (Putnam, 1973) Cheryl A. Wilson, Literature and Dance in Nineteenth-century Britain (Cambridge University Press, 2009) Virginia Woolf, The Voyage Out (first published 1915; William Collins, 2013) Virginia Woolf, The Years (first published 1937; Vintage Classics, 2016) David Wyn Jones, The Strauss Dynasty and Habsburg Vienna (Cambridge University Press, 2023) Sevin H. Yaraman, Revolving Embrace: The Waltz as Sex, Steps, and Sound (Pendragon Press, 2002) Rishona Zimring, Social Dance and the Modernist Imagination in Interwar Britain (Ashgate Press, 2013)

The Waltz

Melvyn Bragg and guests discuss the revolt that broke out in 1871 in Algeria against French rule, spreading over hundreds of miles and countless towns and villages before being brutally suppressed.  It began with the powerful Cheikh Mokrani and his family and was taken up by hundreds of thousands, becoming the last major revolt there before Algeria’s war of independence in 1954.  In the wake of its swift suppression though came further waves of French migrants to settle on newly confiscated lands, themselves displaced by French defeat in Europe and the loss of Alsace-Lorraine, and their arrival only increased tensions. The Mokrani Revolt came to be seen as a watershed between earlier Ottoman rule and full national identity, an inspiration to nationalists in the 1950s. With Natalya Benkhaled-Vince
Associate Professor of the History of Modern France and the Francophone World, Fellow of University College, University of Oxford Hannah-Louise Clark
Senior Lecturer in Global Economic and Social History at the University of Glasgow And  Jim House
Senior Lecturer in French and Francophone History at the University of Leeds  Producer: Simon Tillotson  Reading list:  Mahfoud Bennoune, The Making of Contemporary Algeria: 1830-1987 (Cambridge University Press, 1988) Julia Clancy-Smith, Rebel and Saint: Muslim Notables, Populist Protest, Colonial Encounters, Algeria and Tunisia 1800–1904 (University of California Press, 1994)  Hannah-Louise Clark, ‘The Islamic Origins of the French Colonial Welfare State: Hospital Finance in Algeria’ (European Review of History, vol. 28, nos 5-6, 2021) Hannah-Louise Clark, ‘Of jinn theories and germ theories: translating microbes, bacteriological medicine, and Islamic law in Algeria’ (Osiris, vol. 36, 2021) Brock Cutler, Ecologies of Imperialism in Algeria (University of Nebraska Press, 2023)  Didier Guignard, 1871: L’Algérie sous Séquestre (CNRS Éditions, 2023) Idir Hachi, ‘Histoire social de l’insurrection de 1871 et du procès de ses chefs (PhD diss., University of Aix-Marseille, 2017)  Abdelhak Lahlou, Idir Hachi, Isabelle Guillaume, Amélie Gregório and Peter Dunwoodie, ‘L'insurrection kabyle de 1871’ (Etudes françaises volume 57, no 1, 2021) James McDougall, A History of Algeria (Cambridge University Press (2017) John Ruedy, Modern Algeria: The Origins and Development of a Nation (Indiana University Press, 2005, 2nd edition) Jennifer E Sessions, By Sword and Plow: France and the Conquest of Algeria (Cornell University Press, 2011) Samia Touati, ‘Lalla Fatma N’Soumer, 1830–1863: Spirituality, Resistance and Womanly Leadership in Colonial Algeria (Societies vol. 8, no. 4, 2018) Natalya Vince, Our Fighting Sisters: Nation, Memory and Gender in Algeria, 1954-2012 (Manchester University Press, 2015)

The Mokrani Revolt

Melvyn Bragg and guests discuss the German physicist who, at the age of 23 and while still a student, effectively created quantum mechanics for which he later won the Nobel Prize.  Werner Heisenberg made this breakthrough in a paper in 1925 when, rather than starting with an idea of where atomic particles were at any one time, he worked backwards from what he observed of atoms and their particles and the light they emitted, doing away with the idea of their continuous orbit of the nucleus and replacing this with equations. This was momentous and from this flowed what’s known as his Uncertainty Principle, the idea that, for example, you can accurately measure the position of an atomic particle or its momentum, but not both. With  Fay Dowker
Professor of Theoretical Physics at Imperial College London Harry Cliff
Research Fellow in Particle Physics at the University of Cambridge And  Frank Close
Professor Emeritus of Theoretical Physics and Fellow Emeritus at Exeter College at the University of Oxford Producer: Simon Tillotson Reading list: Philip Ball, Beyond Weird: Why Everything You Thought You Knew about Quantum Physics Is Different (Vintage, 2018) John Bell, ‘Against 'measurement'’ (Physics World, Vol 3, No 8, 1990) Mara Beller, Quantum Dialogue: The Making of a Revolution (University of Chicago Press, 2001) David C. Cassidy, Beyond Uncertainty: Heisenberg, Quantum Physics, And The Bomb (Bellevue Literary Press, 2010)  Werner Heisenberg, Physics and Philosophy (first published 1958; Penguin Classics, 2000) Carlo Rovelli, Helgoland: The Strange and Beautiful Story of Quantum Physics (Penguin, 2022)

Heisenberg's Uncertainty Principle

Melvyn Bragg and guests discuss the infamous assault of an army of the Holy Roman Emperor on the city of Rome in 1527. The troops soon broke through the walls of this holy city and, with their leader shot dead early on, they brought death and destruction to the city on an epic scale. Later writers compared it to the fall of Carthage or Jerusalem and soon the mass murder, torture, rape and looting were followed by disease which was worsened by starvation and opened graves.  It has been called the end of the High Renaissance, a conflict between north and south, between Lutherans and Catholics, and a fulfilment of prophecy of divine vengeance and, perhaps more persuasively, a consequence of military leaders not feeding or paying their soldiers other than by looting.  With Stephen Bowd
Professor of Early Modern History at the University of Edinburgh Jessica Goethals
Associate Professor of Italian at the University of Alabama And  Catherine Fletcher
Professor of History at Manchester Metropolitan University Producer: Simon Tillotson Reading list: Stephen Bowd, Renaissance Mass Murder: Civilians and Soldiers during the Italian Wars (Oxford University Press, 2018) Benvenuto Cellini, Autobiography (Penguin Classics, 1999) Benvenuto Cellini (trans. Julia Conaway Bondanella and Peter Bondanella), My Life (Oxford University Press, 2009) André Chastel (trans. Beth Archer), The Sack of Rome 1527 (Princeton University Press, 1983 Catherine Fletcher, The Beauty and the Terror: An Alternative History of the Italian Renaissance (Bodley Head, 2020) Kenneth Gouwens and Sheryl E. Reiss (eds), The Pontificate of Clement VII: History, Politics, Culture (Routledge, 2005) Francesco Guicciardini (trans. Sidney Alexander), The History of Italy (first published 1561; Princeton University Press, 2020) Luigi Guicciardini (trans. James H. McGregor), The Sack of Rome (first published 1537; Italica Press, 2008) Judith Hook, The Sack of Rome (2nd edition, Palgrave Macmillan, 2004) Geoffrey Parker, Emperor: A New Life of Charles V (Yale University Press, 2019)

Solar Wind

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