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] --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------