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German scientists design metal sponge boat

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German scientists design metal sponge boat

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Ships were originally built from wood, metal then became the material of choice followed by fibreglass and various composites and even concrete but now a new boat building material is on the horizon. Scientists in Germany are experimenting with a metal sponge that could cut the weight of future ships by up to a third – that is 1,000 tons off an average sized freight vessel.