The older archives (>10 years old) have been substantially recovered -- more than 23,800 files' worth -- and are now reachable through the search engine and via file download. Email here if you have any questions.
Your support is essential if the service is to continue, there are bandwidth bills to pay every month and failing disk drives to replace. Volunteers do the work, but disk drives and bandwidth are not free. We encourage you to contribute financially, even a dollar helps. Click here to donate.
Welcome to the new Radio4all website! If you cannot log in, you may need to reset your password. Email here if you need additional support.
 
Program Information
Distillations
Extracts from the Past, Present, and Future of Chemistry
Weekly Program
Sound artists Bart Hopkin and Olive DiCicco
 Chemical Heritage Foundation  Contact Contributor
July 25, 2008, 12:25 p.m.
Today's show focuses on the chemistry of sound. Modern stereo speakers, for example, depend on magnetic alloys based on an ironically abundant rare earth metal. We also get behind the truth underneath the myriad urban legends surrounding Pop Rocks, a candy that sizzles when you eat it. Finally, producer Catherine Girardeau takes us to the studios of Bart Hopkin and Oliver DiCicco, two artists who make experimental sonic art. Element of the Week? Neodymium.
Distillations is produced by the Chemical Heritage Foundation. For more information, visit distillations dot chemheritage dot org.

Download Program Podcast
00:11:57 1 Jan. 1, 1
  View Script
    
1   00:11:57  128Kbps mp3
(11MB) Mono		 1990 Download File...