Source: http://www.thriftyfun.com/tf21099760.tip.html

Homemade Phase Change Ice Packs

I've been trying to think of ways to defeat heat stroke. I'm thinking about buying these jell packs filled with Phase change material. They are expensive. Would any one have ideas on making some thing similar? To elaborate, phase change material aren't freezing cold. They just pump out a nice pleasant 60 degrees or so over a long period to help you avoid heat stroke in the absence of air conditioning. any one got any ideas on creating a cheap, cost effective version of this stuff?

Quizzelbuck from Toledo, OH

Source: http://www.thriftyfun.com/tf21099760.tip.html

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