Hi folks - Its Friday, its raining like crazy in Iowa, and a gloomy day so 
here is a TechNet Friday elements quiz. The ground rules are simple: No 
using Wikipedia (other internet resources are allowed) and the first 
correct complete answer will get to have a Diet Mt. Dew from Doug!

Question #1: Which element expands upon freezing?

Question #1A:  What is the half life of this element?

Question #2: The thermoelectric generators on the Voyager, Galileo and 
Cassini spacecraft utilize the radioactive decay heat from a radioactive 
element oxide and have logged over 250 million thermoelectric operating 
hours with no failures - name the element oxide.

Good Luck!

Dave Hillman
Rockwell Collins
[log in to unmask]

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