| http://www.w3.org/ns/prov#value | - - a chemical sensor that can detect minute quantities of explosives in the water (a mine on the hull of a ship or a diver carrying a bomb, for instance); - a battery that uses the chemical reactions from bacteria living in the seabed to generate small amounts of electricity to power offshore sensors or other devices; - an emergency radio beacon powered by a seawater battery that harvests the motio
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