How to build a sandcastle

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I'm sure that most of us have had a go at building a sandcastle and I'm equally sure that most of those who did had about as much luck as I did when I was a kid - which was none. All my sandcastles collapsed shortly after being completed. Most people don't think too much about what goes into making a good, sturdy sandcastle - just dig up some wet sand and start building but did you know that scientists have actually studied the physics of sandcastle construction? It turns out that the best ratio is one part water to eight parts sand and that's by volume, not weight. To do this successfully you need a bucket to hold the mix and another smaller container such as a one-litre jug with which to measure the proportions of the ingredients. This formula is what helps professional sandcastle builders or sculptors (yes, there are such people) to build those huge sand structures which can often be seen on popular beaches worldwide. So next time you're at the beach with your kids or grandkids have a go at making a sandcastle using this method and see how well it turns out.