Building a (one-stage) Anaerobic Digester
Kenya-based maker Babamzungu designed and built this proof of concept one-stage anaerobic digester to convert waste organic material into useful methane gas.
methane
Sensing chemicals? There’s an app for that.
If you don’t have any bomb-sniffing bees around to look for trance quantities of explosive gas, why not use your iPhone instead? That’s exactly what Jing Li and a team of researchers from NASA have done with their cell phone chemical sensor.
The beauty of poo glass
Afrigadget had a piece about this art colony near Nairobi National Park, called Kitengela Glass. They use local artisans (and train new ones) to make and sell items from recycled glass, metal, and other materials. From the Kitengela website: They try to help their locale as much as possible – over fifty people have been […]
Fart power!
Well, they could use it for power. Physorg writes that Argentine scientists are capturing cow farts in plastic backpacks to try to understand the impact it has on global warming. They think that “30% of Argentina’s total greenhouse gases could be generated by cattle.” They’re experimenting with feeding clover and alfalfa instead of grain – […]
