Published: http://www.bbc.com/news/science-environment-39077761
The simple up-and-down motion of hand pumps could help scientists secure a key water source for 200 million people in Africa.
Growing demand for groundwater is putting pressure on the resource while researchers struggle to accurately estimate the future supply.
But a team from Oxford University says that low-cost mobile sensors attached to pumps could solve the problem.
Their study shows that pump vibrations record the true depth of well water.
Continue reading BBC: ‘Good vibration’ hand pumps boost Africa’s water security
