It can end up in artificial water supply systems, including air conditioning systems, water services and cooling towers.
BBC: Legionnaires' Disease bacteria
On top of this base sits the open air stadium with its artificial running track and grass pitch laid above the concrete roof of the car park.
BBC: Stade Louis II
Past proposals to solve this problem have included artificial intelligence systems to prevent collisions between air traffic.
BBC: NEWS | Science/Nature | Flying cars swoop to the rescue
"I suspect he sometimes thinks these lawyers are talking in their artificial world with their artificial constructs, and in some ways, he's like a breath of fresh air in the ivory tower, " says Thomas Leary, the other Republican on the FTC.
CNN: FTC commissioner on the Web privacy debate
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