How to make a perfect sand castle: scientists have named the exact ratio of sand to water

It's impossible to imagine a vacation on the beach without sand figures, which are enthusiastically built by everyone from young to old. At the same time, everyone wants their creation to remain strong and durable.

According to research by British scientists, your sand castle on the beach will last longer if you use jagged shell fragments in the mixture. The first step is to choose the right sand, writes SSPDaily.

Namely, grains of sand can help build a strong sand castle because they are joined together like a wall of bricks. Round grains of sand, on the other hand, tend to slide against each other, so they are the worst choice.

However, if you are unsure of the strength of the material, include small, jagged shell fragments in the mix, which can help give the castle more structural integrity.

At the same time, scientists advise sand castle builders to add one part water to eight parts sand. An 8:1 ratio of sand to water is ideal because it provides sufficient surface tension, the force that makes water molecules attract each other.

If you add less water, then the surface tension won't be able to hold the grains of sand together, but too much water will turn the wet sand into a lubricant that is not suitable for construction.

However, don't forget that the weather can affect the strength of your structure, as the slightest wind can blow it away. Therefore, you can choose for your sand masterpieces secluded outskirts of the beach, protected by natural rocky outcroppings.