This Simple Invention Is Helping To Solve The Water Crisis
Solving the water crisis faced by many countries in Africa and the... ...al families instead of the nation as a whole- the Hippo Water Roller .The Hippo isn't a re-invention of the wheel, simply a way t... ...rolling motion to help people transport drinking *strong class="m...
https://www.neatorama.com/2016/07/04/This-Simple-Invention-Is-Helping-To-Solve-The-Water-Crisis/
