🚀 go-pugleaf

In article <13600@cup.portal.com> mmm@cup.portal.com (Mark Robert Thorson) writes:
}Well, I should have done this in the first place:  check to see if my "fact"
}was right.  A classic in the field, THE AMATEUR PHOTOGRAPHER'S HANDBOOK, was
}not ten feet away.
}
}Looking inside, I find, "They [flashbulbs] are filled with oxygen and a
}metallic aluminum filament in the form of crumpled foil, ribbon or wire.
}... They produce an intense white flash, the peak of which is about 3/100
}of a second."
} 
}And later, "In 1965 GE offered the M3 [flashbulb] with a rhenium igniter."
}
}As far as I know, the only rare earth which is common enough to be used in
}significant quantities in consumer products is cerium, which composes nearly
}half of the alloy used for liter flints (the other half is iron).
}
Not quite Kemo sabe!  Incandescent lamp filaments are about 2% rhenium.  It's
almost impossible to draw plain tungsten.
-- 

Norm   (strong@tc.fluke.com)