In a message dated 5/6/2005 12:41:53 A.M. Eastern Daylight Time,
robert.hedan@... writes:
Are there other dangers besides sound waves? I can easily protect against
that, I have high-quality ear protectors used at the firing range.
If a chamber implodes, can debris be projected outwards...?
Or is the contained liquid a source of danger? If so, I could easily drape
the unit with several layers of thick cloth. If there are no metallic
projectiles, that should be enough.
If I could afford a new vacuum chamber, I'd buy one. But the realities of
family life and trying to set up a lab is not compatible. I have to cut
corners, but I'm also trying to cut them as safely as I can.
Robert
:)
Sound waves can shatter your ear drums. Your heavy layers of cloth will
probably not help much here but your ear protectors are a good bet. While it is
true that explosion is worse, implosion carries some of the same issues. Stuff
can fly. Here a heavy blanket is best. The other thing that most people
don't think about is shock factor. What are you doing when it blows (Or sucks in
this case! 8>)) LOL If you are cutting out a previous mold you could
seriously cut yourself or others.
PLEASE! I am not trying to scare you! Just be prudent and be careful! Keep
the kids out of the way! ALWAYS ALWAYS test out a new device of this type
OUTSIDE for the first couple of times! If your going to pull it down 2
atmospheres normally pull it down to 3 several times as a safety check! A failure
outside is a whole lot safer then inside!
In closing just be safe! I have 3rd degree burns over 33% of my body from a
stupid mistake 20 years ago that to this day remind me to be careful!
Ray Russell
NMRA-40609
General Contractor
Norfolk & Western Railroad
Pocahontas Division
Circa 1958
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