energy / fuel
Remember when Nokia came up with the futuristic concept of cell phone batteries that charge via radio waves ?
Something in the Air(nergy): RCA’s WiFi Charging Device
(image via: Inhabitat ) How annoying is it to run out of cell phone power when you’re nowhere near a charger?
Powerful Magic: Cell Phones Charge With Ambient Electricity
Nikola Tesla
Egyptian eco stories: biogas from kitchen scraps and environmentally friendly housing for the poor
Home / Egyptian eco stories: biogas from kitchen scraps and environmentally friendly housing for the poor Cairo, Egypt, photo by mshamma (source: Flickr Creative Commons)
Slum village puts trash to good use In Kibera, a low-tech project uses trash as a resource to produce heat for cooking Local residents use Community Cooker to prepare meals and heat water People deliver all sorts of garbage in exchange for cooking time Nairobi, Kenya (CNN) -- On the outskirts of Nairobi, Kenya, mountains of trash are piling up along the dusty streets and footpaths of Africa's largest slum.
In Africa's largest slum, a cooker that turns trash into fuel
Finding a natural, renewable, eco-friendly way to power machines is the holy grail of propulsion research.
Current Technology: Ocean Bot Runs on Geothermal Energy