Gresham College Lectures

Christopher Wren, who died 300 years ago this year, is famed as the architect of St Paul’s Cathedral. But he was also Gresham Professor of Astronomy, and one of the founders of a society “for the promotion of Physico-Mathematicall Experimental Learning” which became the Royal Society.This lecture explores some of Wren’s mathematical work on curves including spirals and ellipses and the mathematics behind his most impressive architectural achievement – the dome of St Paul’s.A lecture by Sarah Hart recorded on 7 March 2023 at David Game College, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/maths-wrenGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show

Scores of painters and photographers over the last seventy years have grappled with the formal portrayal of Queen Elizabeth II from life. These range from the celluloid fantasies of Cecil Beaton to the directness of Lucian Freud; the Renaissance-inspired divinity of Pietro Annigoni to the naturalism of Annie Leibovitz.Underlying all her official portrayals is an artistic conflict: the requirements of royal iconography and the demands of the usually conservative institutional commissioner, versus modern expectations for artistic self-expression and psychological authenticity. A lecture by Philip Mould OBE recorded on 2 March 2023 at Barnard's Inn Hall, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/elizabeth-portraitsGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show

Until the 1970s, historical fiction was a scorned genre that belonged to Georgette Heyer and Jean Plaidy. Over recent decades, literary fiction has turned back to History, from Hilary Mantel’s Thomas Cromwell trilogy to Helen Dunmore, Francis Spufford and Eleanor Catton. In the nineteenth century the historical novel had been more respected, with examples (sometimes impressive, sometimes absurd) from Scott, Dickens, and George Eliot.This lecture will examine the genre’s vicissitudes (while noticing Georgette Heyer’s novelistic virtues).A lecture by John Mullan recorded on 1 March 2023 at Barnard's Inn Hall, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/historical-fictionGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show

Big data has really taken off over the past decade because of the presence of ubiquitous sensor technology everywhere. For example, we are all constantly monitored by our phones, smart doorbells, heating systems, televisions, watches and jewellery. These devices generate a constant flow of information about us. But this data is pretty much meaningless without context.This lecture talks about how data needs to be processed to make it useful to business.A lecture by Raghavendra Rau recorded on 27 February 2023 at Barnard's Inn Hall, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/data-businessGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show

Our bodies depend on our hearts maintaining a steady beat, and increasing it appropriately in response to exercise. If the heart goes too fast, or too slowly, we have effects ranging from tiredness to unexpectedly passing out to death.This lecture will consider the normal heartbeat, the causes of the heart going too fast or slowly and how it is treated when it does.A lecture by Sir Chris Whitty recorded on 21 February 2023 at Barnard's Inn Hall, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/rhythm-heartGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show

Our contemporary ideas about Stonehenge and British antiquity were shaped in times of empire and war. They dominate popular histories and inform national identity.Focusing on how Stonehenge was built, and drawing on a wealth of evidence which includes new archaeology and science, this lecture describes an alternative narrative of ancient communities, and presents a more positive and inclusive story – a Stonehenge re-imagined for modern Britain.A lecture by Mike Pitts recorded on 23 February 2023 at Barnard's Inn Hall, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/stonehenge-historyGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show

Sir Christopher Wren was one of the most remarkable Gresham Professors of Astronomy. Though best known today as the architectural mastermind behind the rebuilding of London after the Great Fire, Wren’s appointment to the Gresham chair in 1657 stemmed from his enthusiasm for turning his gaze well above London’s skyline and focussing his attention on the heavens above.This lecture will consider Wren’s contributions to astronomy and how Wren’s appreciation of and contributions to art and design, and science and engineering, were fully integrated in his life and made him a polymath on a par with Leonardo da Vinci.A lecture by Katherine Blundell OBE recorded on 22 February 2023 at David Game College, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/wren-cosmosGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show

This lecture will examine the images of power and empire projected by Queen Victoria over the course of her reign.Beginning with her coronation, it surveys her depictions as a young queen. It looks at the transformation of her image after Albert’s death from devoted wife to grief-stricken widow. It examines portrayals of Victoria as grandmother of Europe and as Empress of India, and it concludes that the strongest image is that of the black-dressed Queen alone.A lecture by Jane Ridley recorded on 15 February 2023 at Barnard's Inn Hall, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/victoria-portraitsGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show

In this lecture, we will delve into the history of opera because that is where the diminished seventh-chord gradually accumulated its expressive power as a chord for dramatic climaxes, demonic intrusions and generally for shock and horror of any kind. The augmented triad came to be used for the mysterious and supernatural. The symmetrical structure of these two chords allowed composers to veer off into unexpected keys or create new scales which have not shed their strangeness, even today.  With Pianist Peter Donohoe CBEA lecture by Marina Frolova-Walker recorded on 09 February 2023 at LSO St Luke's Church, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/diminished-augmentedGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show

End-to-end encryption secures messages before they leave a device, preventing them from being read in transit. Increasingly the default protocol for messaging apps, neither governments nor the platforms on which it operates can access unscrambled communications and message content. Some governments have demanded ‘back doors’ for criminal investigations, while others have exploited workarounds to access the encrypted messages of political dissidents.This talk considers the current public discourse on online surveillance and privacy, and where society might go from here.A lecture by Victoria Baines recorded on 14 February 2023 at Barnard's Inn Hall, London.The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/problem-encryptionGresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: https://gresham.ac.uk/support/Website:  https://gresham.ac.ukTwitter:  https://twitter.com/greshamcollegeFacebook: https://facebook.com/greshamcollegeInstagram: https://instagram.com/greshamcollegeSupport the show