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		 Cool.   
 
So, if anyone is still in this thread, can you figure out the science behind the Hot Heat Massager?  I can't figure out the metal disk.  Why does flexing it start the exothermic crystalization process?  Why doesn't it start the reaction just because it is there? 
		
		
		
		
		
			
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				I can't read your signature.  Sorry.
			 
		
		
		
		
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