[Elecraft] Re: FCC rules part 18 [CF bulbs vs. LED] (warning: wayOT)

[Ron D'Eau Claire]

In the late 1950's was a great traveling road show put on by General
Electric that went to high schools showing off the wonders of science and
engineering to encourage kids to follow a career in those fields. The whole
school would spend an hour-long "assembly" in the auditorium watching the
show. One of the demonstrations was to pour mercury into a hammer-shaped
mold, pour liquid nitrogen over it, pick up the now-solid hammer with a
heavily-gloved hand and drive some nails through some wood 2X4s with it,
then lay it in a pan. A few minutes later the mercury could be poured back
into the bottle.

Ron AC7AC 

-----Original Message-----
I remember in freshman physics lab at Caltech in 1957 one of my  
fellow students said he had figured out a weapon for the perfect  
crime.  He made a mold and cast a mercury knife with the help of some  
liquid nitrogen.  He held in in an asbestos glove (another dangerous  
substance, of course) and went around the lab making threatening  
gestures (until it started to melt).

Bob, N7XY