>"Both experiment and calculation seem to indicate that water confined by solid walls to tiny regions of space, whose size is comparable to that of a few hundre

>"Both experiment and calculation seem to indicate that water confined by solid walls to tiny regions of space, whose size is comparable to that of a few hundred molecules, begins to exhibit quantum mechanical effects, including delocalization and quantum coherence." Sounds like a possible source of random entropy for crypto :-) I did the Wolfram Alpha query[1] and it turns out that 100 molecules of water has a volume of 2.992 yL (yoctoliters, 10^-24 L). I didn't think we were up to yocto-technology yet! The paper that seems to describe this is called "Evidence of a new quantum state of nano-confined water"[2] so I have a feeling that "a few hundred molecules" may be a few orders of magnitude out. From the paper: "We find that in water confined on scales of 20˚A, this wave function responds to the details of the confinement, corresponds to a strongly anharmonic local potential, shows evidence in some cases of coherent delocalization in double wells, and involves changes in zero point kinetic energy of the protons from -40 to +120 meV difference from that of bulk water at room temperature. This behavior appears to be a generic feature of nanoscale confinement." It's a really interesting paper. (although I had to do a lot of Wikipedia searches on certain terminology!) [1]: http://www.wolframalpha.com/input/?i=volume+of+100+molecules+of+water http://www.wolframalpha.com/input/?i=volume+of+100+molecules... [2]: http://arxiv.org/abs/1101.4994 http://arxiv.org/abs/1101.4994