Are satellites (or satellite parts) ever made from metal salvaged from pre-1945 shipwrecks? Possibly to ensure that those metals were refined before atmospheric A-bomb explosions increased the background radiation levels? [more inside]
posted by metaBugs on Aug 4, 2009 - 17 answers

To what extent would the lack of an atmosphere reduce the effectiveness of nuclear weapons?
posted by Artw on Sep 26, 2008 - 17 answers

Did children actually believe that "Duck and Cover" would work? [more inside]
posted by interrobang on May 3, 2006 - 37 answers