The inhomogeneous structure of water at ambient conditions
Small-angle X-ray scattering (SAXS) is used to demonstrate the presence of density fluctuations in ambient water on a physical length-scale of ≈1 nm; this is retained with decreasing temperature while the magnitude is enhanced. In contrast, the magnitude of fluctuations in a normal liquid, such as CCl 4, exhibits no enhancement with decreasing temperature, as is also the case for water from molecu
