Thomas Edison famously said that genius is 1 percent inspiration and 99 percent perspiration — words that could well apply to a new machine promoted by UNICEF that turns human sweat into drinking water.
The Sweat Machine extracts moisture from worn clothes by spinning and heating them, then filters the resulting liquid so that only pure water remains. It was built by Swedish engineer and TV personality Andreas Hammar, and uses a technology developed by Sweden's Royal Institute of Technology and the water purification company HVR.
The Central Asian nation of Tajikistan has huge rivers. They begin atop some of the world's highest mountains and then flow west through the country's lush, green valleys. Yet for many Tajik families, getting enough water each day is still a struggle.