Subject: How would I flash freeze a ten foot cube of water?

I am writing a novel in which my McGuyver-like protagonist needs to think 
of an ingenious way to instantly freeze a roomful of water.  For example, 
if he opened the nozzle on a canister of liquid nitrogen and dropped it 
into the water from above, would this flash freeze the whole roomful of 
water?

Response:

Re: How would I flash freeze a ten foot cube of water?
I am writing a novel in which my McGuyver-like protagonist needs to think 
of an ingenious way to instantly freeze a roomful of water.  For example, 
if he opened the nozzle on a canister of liquid nitrogen and dropped it 
into the water from above, would this flash freeze the whole roomful of 
water?


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Re: How would I flash freeze a ten foot cube of water?