Having already packed up for the week-end but NOT using Wikipaedia I have this: 1 Einsteinium does not occur naturally in any measurable quantities. The modern process of creating the element starts with the irradiation of plutonium-239 Plutonium-239 is an isotope of plutonium. Plutonium-239 is the primary fissile isotope used for the production of nuclear weapons, although uranium-235 has also been used and is currently the secondary isotope.... in a nuclear reactor for several years. The resulting plutonium-242 isotope (in the form of the compound plutonium(IV) oxide) is mixed with aluminium and formed into pellets. The pellets are then further irradiated for approximately one year in a nuclear reactor. Another four months of irradiation is required in a different reactor. The result is a mixture of californium Californium Californium is a metallic chemical element with the symbol Cf and atomic number 98. A Radioactive decay transuranic element, californium is used in starting nuclear reactors, optimizing coal-fired power plants and cement production facilities , medical treatment of cancer, and oil exploration via down hole well logging.... and einsteinium, which can then be separated. 2 Strontium Happy Friday Graham Naisbitt Email: [log in to unmask] Phone: +44 (0)12 5252 1500 Web: www.gen3systems.com On 15 May 2009, at 13:45, David D. Hillman wrote: > Hi gang! Ok, its Friday and Doug hasn't arrived in the office for me > to > harass him yet so here is our "Friday Trivia" quiz. Note that since > I am a > materials engineer, the questions are going to be material based > (duh!) > and intended to drive Doug nuts. One rule - the use of Wikipedia as a > research tool is prohibited but all other internet sources are open > game: > > 1) Question Number One: > Einsteinium was discovered in 1952. What sampling method was used to > discover the element? Bonus points if you can state the location the > element was discovered. > > 2) Question Number Two: > Sir Humphry Davy discovered what element in 1808? > > > The "winner" of the Friday trivia quiz is a choice of either a case of > Doug's Diet Mountain Dew or a case of Mummy dust. > > Good luck and happy Friday! > > > 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 -----------------------------------------------------