It's legit. I think I've posted another site's info on this. Here's a similar article from the BBC:
http://www.bbc.co.uk/dna/h2g2/A2116766I'm not sure it will make ice, but the method described is a bit different (using shallow pots filled with water). Anyway, I've thought about getting the local potter to build me one. <img src="/images/graemlins/smile.gif" alt="" />
_________________________
Experience is a hard teacher because she gives the test first, the lesson afterwards.