THE ARUSHA WINDMILL May/June 1978 (Appropriate Technology .
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THE ARUSHA WINDMILL May/June 1978 (Appropriate Technology . The BigBelly solar trash compactor has saved big cities like Philadelphia and Boston an enormous amount of money in trash-collecting costs. Its ingenious design allows it to run completely on the sun’s energy, and it can hold five times as much waste as a typical city trash can |
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