Today, we finished the water filtering system which started on Monday. We glued the bubble wrap onto the foam board so the water would go through while the trash stays inside. 

Peri is an accessory that clips onto eyeglasses and translates nearby sounds into flashing lights — perfect for those with hearing problems, who sometimes miss out on what’s being said to them, or on noises that could alert them to events occurring nearby.

The design takes some inspiration from video games, which alert the player to nearby threats via a red glow. In games, however, they typically only appear when someone takes damage, while Peri could help the wearer avoid harm.

https://practicalaction.org/solar-powered-water-pumps

This is about a product already developed and being used in Kenya.

SmarT SecuriTy - A Safe and Secure Security System