You could also think of water, which expands when freezing and water's 'half life' could be H2O/2 equals HO....ho-ho /Inge ----- Original Message ----- From: "David D. Hillman" <[log in to unmask]> To: <[log in to unmask]> Sent: Friday, July 10, 2009 3:49 PM Subject: [TN] NTC - Friday Elements Quiz > 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 > ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------