Last year, Habitat for Humanity India, an NGO, had distributed 500 of these WaterWheels to villagers in the district. Instead of spending hours carting water pots as they would earlier, the WaterWheel enables them to get more water in one go. Thousands of WaterWheels have been sold across India, and some have been exported to a few African countries since then. MitticoolMansukhbhai Prajapati's terracotta refrigerator that runs without electricity is the ideal design innovation for rural India, where power supply remains uncertain. Mathews K Mathew, a native of Kottayam, Kerala, spent more than a decade developing this gadget, which only works outdoors.

Source: dna October 23, 2016 01:30 UTC