Q&A: Why should we care about space science? - with Anu Ojha @TheRoyalInstitution

The Royal Institution | Q&A: Why should we care about space science? - with Anu Ojha @TheRoyalInstitution | Updated October 2024, 5 hours ago.

$Chaos theory and geometry: can they predict our world? – with Tim Palmer The geometry of chaos can explain our uncertain world, from weather and pandemics to quantum physics and free will. This talk was recorded at the Ri on 21 April 2023. Join Tim Palmer as he explores how it provides the means to predict the world around us, and provides new insights into some of the most astonishing aspects of our universe and ourselves. Watch the Q&A here: https://youtu.be/VZQnFQAJ6Io Subscribe for regular science videos: http://bit.ly/RiSubscRibe 00:00 Introduction 00:55 Illustrating Chaos Theory with pendulums (demo) 02:44 Fractal geometry: A bridge from Newton to 20th Century mathematics 08:43 The three great theorems of 20th Century mathematics 11:24 The concept of State Space 14:43 Lorenz State Space 19:24 Cantors Set and the prototype fractal 22:52 Hilberts Decision Problem 24:04 The link between 20th Century mathematics and fractal geometry 27:21 The predictability of chaotic systems 32:26 Predicting hurricanes with Chaos Theory 43:44 The Bell experiment: proving the universe is not real? 51:45 Counterfactuals in Bells theorem 56:29 Applying fractals to Bells theorem 01:03:57 The end of spatial reductionism Buy Tims book The Primacy of Doubt here: https://geni.us/5bgfg Tim Palmer is a Royal Society Research Professor in the Department of Physics at the University of Oxford. Following a PhD in general relativity theory, he spent much of his career working on the predictability and dynamics of weather and climate, developing probabilistic ensemble prediction systems across a range of weather and climate timescales. He also researches the foundations of quantum physics, in addition to applications of quantum and imprecise computing. He is a Fellow of the Royal Society and an International Member of the US National Academy of Sciences. Amongst other awards, he has won the Institute of Physics Dirac Gold Medal, and the top medals of the American and European Meteorological Societies. A very special thank you to our Patreon supporters who help make these videos happen, especially: modsiw, Anton Ragin, Edward Unthank, Robert L Winer, Andy Carpenter, William Hudson Don McLaughlin, efkinel lo, Martin Paull, Ben Wynne-Simmons, Ivo Danihelka, Kevin Winoto, Jonathan Killin, Stephan Giersche, William Billy Robillard, Jeffrey Schweitzer, Frances Dunne, jonas.app, Tim Karr, Alan Latteri, David Crowner, Matt Townsend, THOMAS N TAMADA, Andrew McGhee, Paul Brown, David Schick, Dave Ostler, Osian Gwyn Williams, David Lindo, Roger Baker, Rebecca Pan The Ri is on Patreon: https://www.patreon.com/TheRoyalInstitution and Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and TikTok: https://www.tiktok.com/@ri_science Listen to the Ri podcast: https://anchor.fm/ri-science-podcast Our editorial policy: https://www.rigb.org/editing-ri-talks-and-moderating-comments Subscribe for the latest science videos: http://bit.ly/RiNewsletter Product links on this page may be affiliate links which means it wont cost you any extra but we may earn a small commission if you decide to purchase through the link.$

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$The complex science of cities and how they grow – with Elsa Arcaute What can fractal patterns tell us about how cities are formed and grow? And can you use complexity science to predict voting patterns based on infrastructure? Subscribe for regular science videos: http://bit.ly/RiSubscRibe Become a YouTube channel member for exclusive access to the Q&A: https://youtu.be/PD3Rlit5U74 Complexity science teaches us that more is different, meaning that interacting parts, for example, people, give rise to new and unexpected properties. Despite cities being often seen as opposite to nature, discover that they share many similar processes with natural systems. In this lecture, Elsa Arcaute explores fascinating connections, such as how the structure of leaves can help us understand the layout of cities, how urban footprints left over thousands of years resemble the organisation of the brain, and whether there is a collective urban memory that influences socio-economic trends like inequality. Additionally, we will question whether these resemblances are the outcome of our fractal nature. Elsa Arcaute is Professor of Complexity Science at the Centre for Advanced Spatial Analysis. Her research focuses on modelling and analysing urban systems from the perspective of complexity sciences. Her main branches of research are urban scaling laws, hierarchies in urban systems, defining city boundaries, and the analysis of urban processes using percolation theory and networks. The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and TikTok: https://www.tiktok.com/@ri_science Listen to the Ri podcast: https://podcasters.spotify.com/pod/show/ri-science-podcast Donate to the RI and help us bring you more lectures: https://www.rigb.org/support-us/donate-ri Our editorial policy: https://www.rigb.org/editing-ri-talks-and-moderating-comments Subscribe for the latest science videos: http://bit.ly/RiNewsletter Product links on this page may be affiliate links which means it wont cost you any extra but we may earn a small commission if you decide to purchase through the link.$

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