‘Good Vibration’ Hand Pumps Boost Africa’s Water Security
The simple up-and-down motion of hand pumps could help scientists secure a key water source for 200 million people in Africa.
The simple up-and-down motion of hand pumps could help scientists secure a key water source for 200 million people in Africa.
The Arno projects, the circular fortress, and the draining of the Piombino swamps had one thing in common with many of Leonardo’s grandest projects,
The ‘solar crop’ incentivises farmers using solar pumps to sell excess power back to the grid, conserving water in the process. Photograph: Prashanth Vishwanathan