Andrea Sella

Andrea Sella, a Professor of chemistry at University College London and an expert on rare-earth elements, discusses the unique electronic and magnetic properties of lanthanides. Tim Cross, The Economist's senior science writer, tackles the pressing geopolitical implications surrounding rare earths, especially China’s export controls. They explore the critical roles these elements play in technology, the challenges of recycling, and potential alternatives for Western industries. Could this be the wake-up call for a shift in global supply strategies?

Professor Andrea Sella, a Chemistry expert at University College London, dives into the fascinating world of helium, a rare yet vital resource. He discusses helium's unique properties and its critical industrial uses, especially in medical imaging technology. The conversation highlights the scarcity of this inert gas on Earth and the ethical dilemma surrounding its frivolous uses. Listeners also explore the challenges of helium extraction in Texas and the importance of the U.S. National Helium Reserve in maintaining supply for advancements in health and technology.

Exploring historical poisonings with insights from a chemist and Agatha Christie fan. Discussing the ease of access to poisons, famous cases, and deadly garden plants. Delving into literary depictions of poisons in crime novels and the potency of cyanide. Analyzing thallium poisoning in Agatha Christie's 'The Pale Horse' and playful discussions on symbolic meanings of poison.

Chemists Andrea Sella and David Cole-Hamilton discuss the significance of the periodic table and the potential scarcity of elements in the future. They highlight the importance of making better use of resources. The podcast also explores the discovery of a significant helium reserve in Tanzania and the abundant supply of indium. Overall, it delves into the impact of elements on the modern economy.

Chemistry professor Andrea Sella joins the discussion on the various states of matter beyond solids, liquids, and gases, exploring plasma and exotic phases like glasses and liquid crystals. The podcast delves into the complexities of molecular structures, phase transitions, material evolution from pure elements to alloys like steel, and the impact of industrial revolution on material science.