Comment Re:International translation (Score 1, Informative) 234
Not to mention that it's actually the melting point. Even when you have a well-defined pressure of 1 atm, water doesn't have to freeze at 0 C (and it also doesn't have to boil at 100 C). It is likely that it will freeze at that point, but far from being guaranteed. If you're doing things right water can go as far as -50 C before freezing.