When we arrived at Hamsi village, we saw a pump pushing water from the pond below the village. The pump does not run on electric motors but on hydropower. The villagers could not say for sure how the pump worked. ...
Tag: efficiency
When we arrived at Hamsi village, we saw a pump pushing water from the pond below the village. The pump does not run on electric motors but on hydropower. The villagers could not say for sure how the pump worked. ...