A billboard in Lima, Peru serves two important functions. It not only advertises the courses at UTEC, the University of Engineering and Technology, but demonstrates the capabilities of the school’s engineering students by producing purified water from the the air.
Lima, home to over 9 million people, is situated on a long stretch of coastal desert where it rarely rains, making access to safe water a challenge for many in the city. Despite the lack of rain, the high humidity in the air enables the 5 generators contained in the billboard to convert the humid air into water.
[via Creative Criminals]