The sky's the limit for hyper-efficient toilets

03/29/2013 | Wall Street Journal, The

Airplane bathrooms are an important part of the aviation business. Toilets are crucial if carriers want to operate lengthy routes, but hauling water requires planes to burn more fuel. That's made airplane toilets the focus of intensive research and development, with researchers using simulated waste composed of dog food or shredded sponges to test prototype hyper-efficient toilets.

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Wall Street Journal, The

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