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Author Topic: Liquid Nitrogen Ground Fog  (Read 9673 times)

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Celeste_SM

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Liquid Nitrogen Ground Fog
« on: May 04, 2007, 08:18 pm »
Hi all.  Has anyone used liquid nitrogen to create a ground fog effect?  We normally do the dry-ice routine, but my director heard that the look was much more effective with liquid nitrogen.  I did some prelimary research on it, and of course the first few Google hits were about how it is dangerous for actors. :(  So, I'm looking to hear the experiences of others who may have used it!
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Scott

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Re: Liquid Nitrogen Ground Fog
« Reply #1 on: May 04, 2007, 11:22 pm »
Dry ice can look damn good (especially in conjuction with fog and haze) with the right distribution mechanism -- maybe it would be in the best interest of your company (i.e. your actor charges) interest to look further into that.
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KMC

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Re: Liquid Nitrogen Ground Fog
« Reply #2 on: May 05, 2007, 11:07 am »
Le Maitre makes some great machines.  They'll have a machine to suit every need you have.  Sounds like you want some heavier stuff that sticks on the floor, look at their low-fog stuff and you should find something to suit your needs.

I would steer away from using any chemicals or gases that you're unsure of in any aspect of theatre.  If you don't know the way a gas or chemical will behave and all of the potential risks then it's not prudent to put that in a space where you have a  lot of people.
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Mac Calder

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Re: Liquid Nitrogen Ground Fog
« Reply #3 on: May 05, 2007, 11:28 am »
Okay, I am locking this topic for two reasons:

1: Liquid nitrogen is not safe to be handled by non-professionals - so I am locking this to prevent people from replying with "If you do X/Y you can do it safely" posts.

2: Liquid nitrogen is damn dangerous and should only be handled by professionals - yes, I realise I said the same thing two different ways... that is just to emphasise.

Dry ice is in fact quite a dangerous compound, but with careful handling, we use it in the theatre to great effect. Liquid N2 is many times more dangerous - especially in the quantities required for stage, and in most countries (The US, I am not so sure about) requires a permit to get such quantities - and there are a lot of storage considerations to be thought about - making using liquid N2 prohibitively expensive.

If the OP wants more information on using liquid N2, then the OP should contact a local effects professional and proceed from there.
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