I have often wondered what they feed the students at London's Royal College of Art; from Thomas Thwaite and his toaster to Markus Kayser's 3D printer, we have profiled the most amazing stuff. Perhaps it's the espresso that keeps them going, from the Velopresso designed by students Amos Field Reid and Lasse Oiva.
The designers describe it:
Velopresso is a celebratory fusion of human power, sensory pleasures and technology -- old tech with hi-tech, bicycles and coffee, their engineering and aesthetics. The result is an innovative pedal-powered mobile coffee-making machine for off-grid selling of quality espresso and its derivatives with a compact footprint and near silent ultra-low carbon human-powered operation -- fine coffee, no electricity, no motors, no noise.
It's not completely carbon free; the water is heated using a boiler powered by a portable gas canister. However, Architizer reports that they are working on ways to use coffee grounds as fuel.