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Technetium
Technetium is essential for medical imaging, yet supplies of this short-lived manmade element are far from guaranteed. We see a technetium scan in progress and a cow being milked, and hear the yarn of the 70-year chemistry wild goose chase sparked by this mysterious radioactive metal.
Last on
Mon 27 Jul 201500:32GMT
BBC World Service Online
Broadcasts
- Thu 23 Jul 201502:05GMTBBC World Service Online
- Thu 23 Jul 201512:05GMTBBC World Service Online
- Thu 23 Jul 201521:05GMTBBC World Service Online
- Sat 25 Jul 201519:05GMTBBC World Service Online
- Mon 27 Jul 201500:32GMTBBC World Service Online
Podcast
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Elements
Chemical elements: where do we get them and how do they fit into our economy?

