[TCML] Dry Ice

[Frank]

One thing you will find with dry ice is that it will freeze the water 
around it and will slowly encase the dry ice in a normal ice block 
shutting off the effect.
You can slow this down by using hot water to start the effect. You 
will have more fog at first doing it this way.

Suggest you experiment with a metal and plastic bowl of water first 
to determine which will minimize the additional capacitance to the 
top load and give you the greatest spark.

If you have not played with dry ice before, handle it with heavy 
leather gloves, I found a good quality new, not oil stained, welder's 
gloves work best, as tongs tend to slip and drop the ice just when 
you do not want to!

Frank

At 05:56 PM 4/4/2008 -0700, you wrote:
>Hi All,
>
>Thanks for all the tips. I learned a lot here. The fog rising (fog 
>machine) or falling (dry ice) is interesting. Spillage of course is 
>a concern, but easily controlled. The center bowl is stainless, but 
>I would be wise to simply insert a plastic bowl. I won't be using my 
>spun toroid but a smooth Al foil toroid, so no big deal there with 
>pitting. What concerns me is temperature. July will be hot here 
>(+100F). With dry ice, I expect the fog to roll down the outer 
>portion of the toroid and head to the primary rather quickly (of 
>course if there's a wind, then it's a no go). I'll have to do some 
>test runs and see how this reacts outdoors.
>
>I'm not looking for any other effects expect a cloud and lightning 
>show. This little coil puts out some hefty streamers (12/200 NST), 
>so this could be an issue if the fog guides the sparks, although I 
>do have the primary under acrylic, the bottom of the secondary would 
>be a likely target. This might be one of those times that I may 
>actually use some strike spheres or maybe even a ring. Come to think 
>of it, I have a chrome 1.5" diameter tubing which may be perfect for 
>this setup (the top ring to a clothes rack used at department 
>stores, about 4 foot diameter). I simply need to gap it and mount it.
>
>Thanks for all the comments and experience in this area.
>
>Take care,
>Bart
>
>Mark W. Stolz wrote:
>>Hi Bart,
>>
>>Justin Hayes and myself did this a couple years back (2001) on his 
>>and Aaron Koscho's 12" coil.  We had hopes of some change in color 
>>or other effect, but it turned out to be exceptionally boring. 
>>:-)  On the plus side, it didn't create any issues either.
>>
>>Mark Stolz
>>Pearland, TX
>>http://teslacoils4christ.org/
>>
>>
>>>Date: Thu, 3 Apr 2008 18:56:07 -0700
>>>From: bartb at classictesla.com
>>>To: tesla at pupman.com
>>>CC: Subject: [TCML] Dry Ice
>>>
>>>Hi All,
>>>
>>>I was wondering if anyone has put dry ice (and water) up in the 
>>>top load? I'm thinking about the 4th of July this year. On my 
>>>small 4.5"D coil, my toroid uses to half spheres back to back as 
>>>the center disc. It is a bowl and can hold a decent amount of 
>>>liquid. I was thinking it might be kind of cool to throw in some 
>>>water and dry ice to make some cool clouds (or fog) growing from 
>>>the toroid (kind of a cloud and lightning thing). I figure someone 
>>>here must have done this in the past as it's pretty simple to do, 
>>>so I'm curious if those who have actually tried this ran into any problems?
>>>
>>>Take care,
>>>Bart
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>>>
>>
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