

Elemental Business: Helium
9 snips Jul 12, 2014
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.
AI Snips
Chapters
Transcript
Episode notes
Helium's Cosmic Discovery
- Helium was first discovered by observing unexplained spectral lines on the sun.
- It was later isolated on Earth from a uranium-containing mineral by William Ramsey.
Helium Shows Atomic Principles
- Helium is much lighter than air, which makes it float and changes voice pitch when inhaled.
- Its atomic properties demonstrate principles of atomic theory through sound speed changes.
Ban Helium in Balloons
- Avoid using helium in children’s balloons to conserve this precious resource.
- Helium is finite and wasting it on toys is not sustainable for future needs.