The Sea Sorts Shells By The Sea Shore

While on holiday, a Dutch scientist made the chance observation that the sea sorts sea-shells into right and left-hand varieties. The significance of this discovery is that it will assist geologists in determining the direction of the currents when pre-historic seas laid down sedimentary formations. He is continuing his studies of the sorting action employing highly coloured shells made from plastics. These synthetic shells will be placed in the sea, and the colours will assist in their recovery and classification. A plastics-based material has been compounded, which is hard and robust, but from which it is possible to manufacture synthetic shells that have the same specific gravity as normal shells.