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
Erin McLeary and Joe Rucker
 Chemical Heritage Foundation  Contact Contributor
July 23, 2008, 10:06 a.m.
Scientists have been fascinated with the question of what color is ever since Isaac Newton discovered that white light contains the entire color spectrum. Join CHF’s Erin McLeary and Integral Molecular’s Joe Rucker as they whip up a batch of mauvine, the first synthetic dye, in CHF’s catering kitchen. In this week’s Chemistry in Your Cupboard, learn how you can make your own pH meter with a common vegetable. Element of the Week: Chromium.

Download Program Podcast
00:11:48 1 Jan. 1, 1
  View Script
    
 00:11:48  128Kbps mp3
(11MB) Mono
1953 Download File...