Re: [math-fun] 177 million tons of ice???

On Tuesday 20 September 2005 23:36, Tom Knight wrote:

The molecular size and charge distribution is almost identical, so the crystals form without distinguishing between H2O and DH2O. It would be rare to find any significant number of molecules of D2O.

I think all the above was why Henry added those smileys...

DH2O ice does not sink, in any case.

So, why not, given that (1) the naive calculations suggest it should and (2) electrostatically D2O looks just like H2O? -- g