Sophia Hayes
Professor of chemistry at Washington University in St. Louis, specialising in techniques like NMR and low-temperature physics, appearing as the episode's expert on helium.
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Apr 14, 2026 • 16min
Helium: the invisible gas that powers AI, and why it’s in short supply
Sophia Hayes, a chemistry professor specializing in NMR and low-temperature physics. She explains why helium’s unique cold and inert properties matter. They cover helium’s roles in MRI, semiconductor cooling and AI hardware. The conversation also looks at fragile global supplies, storage and transport challenges, and how labs cope when supplies tighten.
