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Built in 1878, this 8,500-sq-ft Ohio jail held prisoners for 110 years; 148 years later, a developer bought it and may turn its cells into offices or a speakeasy Singapore burns its garbage and dumps the ash into the sea; how a 350-hectare island became a wildlife haven Scientists develop a starch-based wash that removes pesticide residues and keeps fruits and vegetables fresh for 15 days | Scientists built a wood-based sponge that pulls water from air as dry as 15% humidity; it produced up to 1.72 litres per kg per day Australia switched on a $7.8 million wastewater plant that can process 700 megalitres a year; its inventor says it breaks down stubborn pollutants 16 times more efficiently