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Algaster
alga harvesting unit - Algaster is an alga harvesting unit, designed for a future agricolture's evolution, less powerful but more intelligent. In fact, algas can be used for energy production because of their high oil content. Algaster is a system of machines working individually, but communicating between each other like a swarm of insects.
Further more, they provide water cleaning in polluted areas where algas growth may exceed normal conditions (eutrophic water).