Hi all, One picture of them working on a piece showed a guy with a ? 10 liter or so canister spraying his piece...could just be water but ???
Fritz -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Tony Moss Sent: Friday, June 29, 2007 4:52 AM To: Sundial Mailing List Subject: Re: Sandsculpture Sundial Chris Lusby Taylor wrote: > As I recall from an article about a recent sand scupture competition in > Brighton, the secret is to use river sand, not sea beach sand. It is much > finer and, perhaps, its grains stick together better. Anyway, I'm pretty > sure no binding agent was used there. The results are amazing, particularly > where there are overhangs - jaws and noses, for instance. > > Chris Lusby Taylor > > > > An interesting explanation! I'd always understood that sand remains firm through surface tension of the water film around each grain when moist which ceases when it's dried out. Hence our feet sink into flooded sand when paddling near the shore ('plodgeing' for us Geordies) and also into dry sand but are supported on the surface when the sand is just moist. Would grain size affect this? Might it not be that river sand contains some clay particles as with the red Mansfield sand used in moulding and casting metals? This retains its compacted form even when dried out. Tony Moss --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
