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
 Chemical Heritage Foundation  Contact Contributor
July 30, 2008, 7:58 a.m.
In today’s episode we focus on the physical type of illumination. First we learn about light pollution and why sodium vapor lamps are used so abundantly today. Then producer Ann Dornfeld goes to Bioluminescent Bay in Vieques, Puerto Rico, to explore how bioluminescence works. Finally we uncover the mystery behind glow-in-the-dark products like the green star stickers on ceilings or glowing wristwatch numbers. Element of the Week: Sodium.
Distillations is produced by the Chemical Heritage Foundation. For more information, visit distillations dot chemheritage dot org.

Download Program Podcast
00:12:03 1 Jan. 1, 1
  View Script
    
1   00:12:03  128Kbps mp3
(11MB) Mono		 3395 Download File...