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Materials of a fog horn?
If a tin whistle is made of tin, what's a fog horn
made out of?
So I'm pretty sure that this was just a comical
question we put up for kicks and giggles but we actually got for
TB was the first to send us this:
Mostly brass. There are dozens if not hundreds of
design for fog horns. Bellows or pump style, electric or air
powered. Fog horns are designed for maritime use and need to be able
to resist the corrosive effects of oceanic environments.
C++gUrU then concluded with this:
A fog horn is made out of liquid nitrogen, air
compressed into a tin or aluminum bottle, with a plastic horn used
to channel the sound. Its called a fog horn because when you turn it
upside down and press down on the part you use to make it sound, the
liquid nitrogen comes out looking like fog.
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