A billboard which actually helps people?
April 5, 2013
Posted by admin in Action, Resources, Schools, Science, water conservation, water use
Could you imagine a billboard which actually helps people? That’s happening in Lima, Peru. The billboard pictured produces around 100 litres of water a day from nothing more than humidity, a basic filtration system and a little gravitational ingenuity. Source: https://www.facebook.com/axapeopleprotectors





