Slidesets of selected talks.
.

[47] Magnums: Counting Sets with Surnatural Numbers.
Irish Mathematical Society Meeting.QUB, 29 August 2024.
PDF of lecture slides.

[46] Leopold Bloom's Mathematical Musings.
XXIX International James Joyce Symposium, University of Glasgow,
1419 June 2024. PDF of lecture slides.

[45] Counting Sets with Surreal Numbers.
Gathering for Gardner: Celebration of Mind, 21 December 2023.
PDF of lecture slides.

[44] The Enduring Wonders of Enormous Numbers.
IndiaIreland Friendship Lecture Series, 3 November 2022.
PDF of lecture slides.
Video. Lecture starts at 11 minutes.

[43] Levels of Infinity.
Berkeley Lecture, Maynooth University, 29 September 2022.
PDF .

[42] Parity and Partition of the Rational Numbers.
Irish Mathematical Society Meeting.TUD, 2 September 2022.
PDF .

[41] Image Processing Emerges from the Shadows: Determining the Time and Date from Shadows in a Photograph.
Dublin Area Mathematics Meetup.
Riot Games, Dublin, 23 June 2022.
PDF .

[40] The Origins of Computer Weather and Climate Prediction:
Fulfilment of Richardson's Dream.
Mathematics of Planet Earth Exhibition.
Imperial College London, 30 May 2022.
PDF .

[39] Stokes's Fundamental Contributions to Fluid Dynamics.
Irish History of Mathematics Conference, Maynooth, 2 August 2019
Presentation Slides: PDF.
Presentation Slides: PDF2.

[38] Integrable Elliptic Billiards & Ballyards.
Seminar, Imperial College London, 24 July 2019. PDF.

[37] Magnums: Counting Sets with Surreal Numbers.
Seminar, School of Mathematics and Statistics, UCD, 23 April 2019. PDF.

[36] Mathematics and Music: Symmetry and Symbiosis.
RDS Library Speaker Series, Minerva Suite, RDS Dublin, Wednesday 14 March 2018
Presentation Slides PDF.

[35] Numerical Weather Prediction: A Laplace Transform Scheme for
Integration of the Forecast Equations
Seminar, School of Mathematical Sciences, University College Cork, 8 March 2018
Presentation Slides PDF.

[34] Pedro Nunes and the Retrogression of the Sun.
Irish Mathematical Society. Annual Meeting, IT Sligo, 31 August 2017
Presentation Slides PDF.

[33] Boxes & Loops in Circles & Ovals, Billiards & Ballyards, Squircles & Squovals.
New Trends in Geometric Mechanics, ICMAT Madrid, 37 July 2017
Presentation Slides PDF.

[32] Replication of Léon Foucault's Pendulum Experiment in Dublin.
Irish History of Mathematics Conference,Dublin, 9 June 2017
Presentation Slides PDF.

[31] The Fractal Boundary for the Power Tower Function.
Recreational Mathematics Colloquium V, Lisbon, 30 January 2017
Presentation Slides PDF.

[30] A Painless Overview of the Riemann Hypothesis [Proof Omitted].
40th Anniversary of the Irish Mathematical Society.
UCD, Dublin, 20 December 2016.
Presentation Slides PDF.
Slides (B/W) without buildups (to print) PDF.

[29] The Emergence of Numerical Weather Prediction:
Fulfilment of a Dream & Realization of a Fantasy.
Mathematics of Planet Earth Jamboree.
Reading University, 23 March 2016.
PDF .

[28] The Prehistory of Numerical Weather Prediction: Some Austrian Contributions.
ICAM, Innsbruck, Austria, 31 August4 September 2015.
PDF .

[27] Balanced Flow on the Spinning Globe.
14th EMS Annual Meeting, Prague, Czech Republic, 7th October 2014.
PDF .
Longer version at Irish Met. Soc, 20 Nov. 2014: PDF

[26] Numerical Integration using Laplace Transforms.
Centenary Celebrations of the Royal Meteorological Institute IRM/KMI,
Brussels, 2627 September, 2013. PDF

[25] International Summer School on Atmospheric and Oceanic Science
L'Aquila, September 1620, 2013.
 [1] The Emergence of Numerical Weather Prediction: Parts I and II.
(PDF).
 [2] Resonant RossbyHaurwitz Triads.
(PDF).
 [3] Laplace Transform Integration of the Shallow Water Equations.
(PDF).

[24] Laplace Transform Integration & the Slow Equations.
PDEs on the Sphere Workshop, Isaac Newton Institute,
26 September 2012. (PDF. 3.3 Mbytes)

[23] Quaternion Solution for the Rock'n'roller: Box and Loop Orbits.
IUTAM Symposium
"From Mechanical to Biological Systems  an Integrated Approach".
Udmurt State University, Izhevsk, Russia, June 510, 2012.
(Talk).

[22] The Development of Computer Weather Forecasting in Ireland.
Irish Meteorological Society Meeting, Botanic Gardens, Glasnevin, 10 November 2011.
(PDF)

[21] Summer School, Banff International Research Station, July 1015, 2011:
Advanced Mathematical Methods to Study Atmospheric Dynamical Processes and Predictability.
 [1] The Emergence of Numerical Weather Prediction: from Richardson to the ENIAC.
(PDF).
Video.
 [2] Balance in the Atmosphere: Implications for NWP.
(PDF)
 [3] Laplace Transform Integration of the Shallow Water Equations.
(PDF)

[20] Simple Mechanical Models & Complex Physical Systems.
UCD/TCD Mathematics Summer School, Belfield, 30 May 2011.
(PDF. 5.5 Mbytes)

[19] Balance in the Atmosphere.
Irish Meteorological Society Annual Meeting NUIM, 26 March 2011.
(PDF. 1.7 Mbytes)

[18] The Curious Behaviour of the Rock'n'roller: Part II.
ISSEC/Irish Mechanics Society Meeting, UCD, 20 May 2010.
(PDF. 2.1 Mbytes)

[17] Resonant RossbyHaurwitz Triads.
MACSI Seminar, University of Limerick, 28 November, 2008.
(PDF. 3.8 Mbytes)

[16] A Century of Numerical Weather Prediction.
Royal Meteorological Society Meeting, Edinburgh, 10 October, 2008.
(PDF. 6.8 Mbytes)

[15] Calculating the Weather: The Mathematics of Atmospheric Modelling.
Invited talk, Irish Mathematical Society, UCD, 3 Sept., 2007.
(PDF. 5.4 Mbytes)

[14] IUGG General Assembly, Perugia, July, 2007.
 The Emergence of Numerical Weather Prediction:
Richardson's Dream to the ENIAC
(PDF. 6.1 Mbytes)
 Energy Spectra from Entropy Principles
(PDF.)
 Reconstrucing the ENIAC Forecasts using the NCEP/NCAR Reanalysis.
(PDF. POSTER)

[13] The ENIAC Forecasts: a Recreation.
Irish Mechanics Society, UCD, 9 May, 2007.
(PDF. 7.1 Mbytes)

[12] The Emergence of Weather and Climate Modelling: Richardson's Dream
Royal Meteorological Society Meeting, Reading, 25 April, 2007.
(PDF. 5.3 Mbytes)

[11] Climate Change Prediction: The Big Crunch
IOP Spring Meeting, Birr, 31 March, 2007.
(PDF. 3 Mbytes)
(PPT. 13 Mbytes)

[10] The Energy Spectrum of the Atmosphere
Lorentz Centre, University of Leiden, 2 October, 2006.
(PPT. 1.5 Mbytes)

[9] Richardson's Dream: the Emergence of Scientific Weather Forecasting
Seminar at Institute for Atmospheres and Climate, ETH, Zürich, 5 December, 2005.
(PDF. 12 Mbytes)

[8] Weather & Climate: Prediction from Days to Decades.
Inaugural Lecture,
UCD, 22 September, 2005.
(PDF. 10 Mbytes)

[7] A Century of Numerical Weather Prediction: the View from Limerick
Seminar at University opf Limerick, 18 March, 2005.
(PDF. 6 Mbytes)

[6] Resonant Dynamics near the Triangular Lagrange Points.
Seminar at the U.S. Naval Observatory, Washington D.C.,
14 June, 2004. (PDF. 1.4 Mbytes)

[5] Richardson's Forecast: What Went Wrong?
Symposium on the 50th Anniversary of Operational Numerical Weather Prediction,
University of Maryland, College Park, MD
1417 June, 2004. (PDF. 5.5 Mbytes)

[4] Resonant Rossby Wave Triads and the Swinging Spring.
Dept. of Meteorology, Reading University, 2 Feb., 2004.
(PDF. 1.5 Mbytes)

[3] Recent Developments in Digital Filter Initialization.
IUGG General Assembly, Sapporo, 1 July, 2003. JSM13
(PDF. 497 Kbytes)

[2] The NavierStokes Equations:
The Key to Modern Weather Forecasting.
Stokes Centenary Conference, 1920 June, 2003. Royal Irish Academy.
(PDF. 8.2 Mbytes)

[1] Weather Forecasting:
from Woolly Art to Solid Science.
Irish Meteorological Society, 5th December, 2003.
(PDF. 12 Mbytes)
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