Oil temperature gauge luminous dial. | |||
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| Oil temperature gauge luminous dial. This oil temperature gauge is out of a WWII bomber and it has a luminous dial made with radium paint. The luminosity has faded, which is known to happen due to the deterioration of the zinc sulfide phosphor. It is still definitely radioactive (half-life of 1600 years, so it's going to be that way for a long time). It was donated by Trish Craig of the Environmental Health & Safety department at the University of Illinois at Urbana-Champaign. Here's a great article about an object I'd sure like to find and enclose behind a huge amount of lead/ If you're interested in collecting radioactive things, here is a book I highly recommend. Source: Trish Craig Contributor: Trish Craig Acquired: 28 May, 2002 Text Updated: 11 August, 2007 Price: Donated Size: 3" Purity: <1% | |||
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