The universal nut sheller is a hand-operated machine capable of shelling raw peanuts.
The Universal Nut sheller in Uganda, 2005
Appropriate technology is a movement encompassing technological choice and application that is small-scale, affordable by locals, decentralized, labor-intensive, energy-efficient, environmentally sustainable, and locally autonomous. It was originally articulated as intermediate technology by the economist Ernst Friedrich "Fritz" Schumacher in his work Small Is Beautiful. Both Schumacher and many modern-day proponents of appropriate technology also emphasize the technology as people-centered.
Pedal-powered water pump in Uganda
The universal nut sheller in use in Uganda, an example of appropriate technology