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Rowing robot powers itself by gulping dirty water
One day, you might see robots that not only survive in hazardous environments, but thrive in them. University of Bristol researchers have built Row-bot, a swimming robot that powers itself by feeding on dirty water. Its paddle both propels it forward and helps its microbial fuel cell gulp down the nutrients it needs to generate electricity. This robot might never need refueling so long as it's wading through unpleasant seas, whether they're full of algae or oil.
